Ricoh ISDN Protocol Handbook

ISDN
Protocol Handbook
Revised on September 20th, 1995
I. Layer 1
g
g
Note: Phantom power (40V). Ping-pong transmission may be
g
g
different, depending on the network company.

LAYER 1 CONFIGURATION DIAGRAM

100
100
→ → → → → → → → → →
→ → → → → → → → → →
S/T
TA
TB RA
DSU
-
40V
U
7 km max.
L1
→ → → → → →
-pong transmission
Pin
or echo cancellin
L2
NTT
D70
I
S
→ → → → → →
N
+
RB
I - 1
R
[Durin
standby]
+55V
(L1)
0V
(L2)
communication]
[Durin
0V
(L2)
U→NU
UN
NU
NN
U
DSU→TE
0(+) 1
0(-)
DSU
TE
TE1 T A
Existing
terminal TE2
V/X series
48bit (250µs, 192kbps)
DL. B1B1B1B1B1B1B1B1 E D A FAN B2B2B2B2B2B2B2B2 E D M B1B1B1B1B1B1B1B1 E D S B2B2B2B2B2B2B2B2 E D L. F L.FL.
2-bit offset
D B1B1B1 B1B1 B1B1 B1 L. D L. FA L. B2 B2B2 B2B2B2 B2B2 L. D L. B1B1 B1B1 B1B1 B1B1 L. D L. B2B2 B2B2 B2B2 B2B2 L. D L. F L.FL.L.
-30V
(L1)
2.5ms
320kbps
D S U
(
)
DSU CONNECTION
JAPAN
TA RA RB
MJ - 8S MJ - 8SR
TB
L1 L2
TB RB
87654321
87654321
8P
To subscriber line
TA RA
Bus wiring
TA RA RB TB
87654321
87654321
8P
100
100
ISDN terminal
TE1
8P
I - 2
TE1
ISDN terminal
8P

Example of pseudo-ternary signalling (AMI Code)

000 00011111111
+0
1
-0
Time
I - 3

Layer 1 Status

The ITU-T I.430 recommendation (the basic user-network inter face - Layer 1 specifica­tion) specifies layer 1 activation/deactivation procedures.
Before understanding the procedures, the status and INFO signals should be noted.

TE (Terminal Equipment) Status

Status Description
F1 TE is turned off. F2 TE is turned on, but no signal is exchanged. F3 TE is stopped. No signal is exchanged between TE and NT. F4 TE is waiting for the response to the INFO1 signal from NT. F5 TE is checking if the signal from the NT is INFO2 or INFO4. F6 TE is waiting for signals from NT after receiving the INFO2 signal. F7 TE and NT are synchronized. F8 TE has failed to synchronize with NT, and is waiting for the stop request from NT

NT (Network Termination) Status

Status Description
G1 NT has stopped. G2 NT is sending INFO2. G3 TE and NT are synchronized. G4 NT is terminating itself.

INFO Signals

NT to TE Direction TE to NT Direction
INFO0 No signal INFO0 No signal INFO2 INFO4 Synchronized frame INFO3 Synchronized frame
Activation signal in synchronized condition
INFO1
Activation signal in non­synchronized condition

Activation Procedure from the TE

In idle “F3” status , the TE sends the INFO1 signal to the NT and changes to “F4” status. The NT then changes to “G2” status and sends the INFO2 signal to the TE. The TE changes to “F5” status and stops sending signals to synchronize itself to the signal from the NT. After the TE has synchronized to the signal, it sends the INF O3 signal to the NT and changes to the “F6” status. The NT then changes to “G3” status and sends the INFO4 si gnal back to the TE to in­form that a physic al lin k ha s be en est ab­lished. The timers T1, T2 and T3 are used to reset the TE or NT if a correct response has not been received before the timers expire.
T3
F3
F4
F5 F6
F7
F3
TE
INFO1 INFO2
INFO0 INFO3
INFO4
INFO0 INFO0
INFO0
INFO0
NT
G1
G2
G3
G4
G1
G1
h143x510.wmf
T1
T2

Activation Procedure from the NT

The procedure starts from the NT by send­ing the INFO2 signal to the TE. After the TE has synchronized to the signal, it sends the INF O3 signal to the NT and changes to the “F6” status. The NT then changes to “G3” status and sends the INFO4 si gnal back to the TE to in­form that a physic al lin k ha s be en est ab­lished. The timers T1 and T2 are used to reset the NT if a correct response ha s no t be en re­ceived before the ti me rs ex pi re.

Termination Procedure from the NT

The terminatio n pro ce du r e st art s fro m sy n­chronized status (“F7” status for the TE and “G3” status for the NT). To terminate the physical connection, the NT just stops sending signals and ch an ge s to “G1” status. (The INFO0 signal means no sig­nal is sent from the NT.) Then, the TE also stops sending signals and changes to “F3” status.
INFO2 INFO3
INFO4
INFO0 INFO0
INFO0
NT
G1
G2
G3
G4
G1
G1
TE
F3
F6
F7
h143x511.wmf
INFO0 INFO0
NT
G4
G1
G1
TE
F7 G3
F3
T1
T2
T2
h143x512.wmf
I - 5
II. D Channel, Layer 2
g
g
L A Y E R
1
100
100

Configuration of Dch layers 1 to 3

TE1 T A
→ → → → → → → → → →
DSU
TA
-
TB RA
40V
→ → → → → → → → → →
+
RB
L1
→ → → → → →
-pong transmission
Pin
or echo cancellin
L2
NTT D70
I
S
→ → → → → →
N
L A Y E R
2
L A Y E R
3
DL. B1 B1 B1 B1 B1 B1 B1 B1 E D A FA N B2 B2 B2 B2 B2 B2 B2 B2 E D M B1 B1 B1 B1 B1 B1 B1 B1 E D S B2 B2 B2 B2 B2 B2 B2 B2 E DFL.
0(+)
1
0(-)
FLAG A C I FCS FLAG
0111111 0000000000 000000 0000000000 000000 0000000000 000000 00000000000000000 00000000000000 00 000000000000000000000000000000 0000000000000000000000000000000 000000000000 000 00 1111110···
Protocol ID
00010000
Call ref length
10000000
Call referance
XXXXXXXX
Mesage type Info element length
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXX XXXXXXX
Information element D
Info element contents
···
XX
··
··
··

D channel, layer 2-1 (Q.921:I.441:LAPD)

F
1 oct
A
2 oct
87654321
C
1 or 2 oct
I
N oct
SAPI
(Note 3)
TEI
(Note 4)
Note 1. Meaning of the EA bit (Address field extension bit)
EA value Meaning
0 Address field extension 1 Address field end
Note 2. Meaning of the C/R bit (Command/Response field bit)
C/R value Definition
N command
0
1
U
U response
N
U command
N
N response
U
C/R
(Note 2)
C R
R C
FCS
2 oct
EA
(Note 1)
EA
(Note 1)
NetUser
NetUser
F
1 oct
0
1
Note 3. SAPI value assignment (Service Access Point Identifier)
SAPI value Related entity
0 Call control procedure 1
16 Packet communication procedure (X.25 level 3) 63 Layer 2 management procedure
Other Reserved for future use
Reserved for packet communication using Q.931 call control procedure
Note 4. TEI value assignment (Terminal endpoint Idenifier)
TEI value User terminal type
0 ~63 Non-automatic TEI setting user terminal
64~126 Automatic TEI setting user terminal
127 B roadcasting format data link connection TEI
II - 2

D channel, layer 2-2 (Q.921:I.441:LAPD)

F
1 oct
Format Command Response
Information
transfer
(I)
Supervisory
Unnumbered
A
2 oct
(I)
(Information)
RR
(Receive ready)RR(Receive ready)
RNR
(Receive not
ready)
REJ
(Re-transfer
request)
SABME
(Set
asynchronous
balanced mode
extended)
UI
(Unnumbered
system
information)
DISC
(Disconnect)
C
1 or 2 oct
(Receive not
(Re-transfer
request)
(Disconnect
(Unnumbered
system
acknowledgement)
RNR
ready)
REJ
DM
mode)
UA
I
N oct
Coding
87654321oct
N (S) 0 1 N (R) P 2
000000011
N (R) P/F 2
000001011
N (R) P/F 2
000010011
N (R) P/F 2
011P11111
000F11111
000P00111
010P00111
011F00111
FCS
2 oct
F
1 oct
FRMR
(Frame reject)
XID
(ID exchange)
: P/F When sent as a command: (P) bit
XID
(ID exchange)
When sent as a response: (F) bit
: Provision of XID is not yet scheduled.
II - 3
100F01111
101P/F11111

TEI management procedure

The TEI management procedure includes the following procedures:
. TEI assignment procedure . TEI check procedure . TEI clear procedure . TEI identifying procedure executed by the user as an option
Conceptually, these procedures belong to the layer management entity. The network side layer management entity is referred to as Assignment Source Point (ASP). The TEI management procedure is performed by using the data link layer of a non-confirming type information transfer.
SAPI is set to 63, and TEI is set to 127. The following shows the format of the me ss ag es tr an sf erre d between layer manage­ment entities:
oct87654321
1 Management entity indentifier - mei: 15 (0FH) 2 Reference number (Ri) 3 Reference number (Ri) 4 Message type - XXH 5 Operation indication Ai value E=1: End oct
Ri: A value in a range of 0 to 65535 randomly generated by user equipment
Message
name
ID request
(User
Net)
ID assignment
(User → Net)
ID reject
(Net
User)
ID check re-
quest
(Net
User)
ID check re-
sponse
Net)
(User
ID clear
User)
(Net
ID check
Net)
(User
Management
entity
identifier
00001111 0 ~ 65535 00000001 Ai=127: Any TEI is ready
00001111 0 ~ 65535 00000010
00001111 0 ~ 65535 00000011
00001111
00001111 0 ~ 65535 00000101 Ai=0 to 126: TEI value being used
00001111
00001111
Reference
number
Not used (Code 0)
Not used (Code 0)
Not used (Code 0)
Message
type
Ai=64 to 126: TEI is the assigned value
Ai=64 to 126: Request abnormal (Reject TEI) Ai=127: TEI assignment is not possible
00000100
00000110
00000111 Ai=0 to 126: TEI value to check
Ai=127: Check all TEI values Ai=0 to 126: TEI value to check
Ai=127: Request to clear all TEI values Ai=0 to 126: TEI value to clear
Operation indication
Ai
II - 4

TEI assignment procedure (call from user)

User
UI
SAPI:63, TEI: 127, mei: 15, Ri: XXXXH, Message type 01 (H), Ai: 127
UI
SAPI:63, TEI: 127, mei: 15, Ri: XXXXH, Message type 02 (H), Ai: YYY
D ch
layer 2
SABME
SAPI: 0, TEI: YYY
UA
SAPI:0 , TEI:YYY
D ch
layer 3
B ch
D ch
layer 3
D ch
layer 2
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
Procedure on
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
DISC
SAPI: 0, TEI: YYY
UA
SAPI: 0, TEI: YYY
SETUP
]
CALL PROC
CONN
]
CONN ACK
B ch
DISC
]
REL
]
REL COMP
]
]
]
II - 5

TEI assignment procedure (call from network)

User
D ch
layer 3
D ch
layer 2
D ch
layer 3
B ch
UI
SAPI: 0, TEI: 127 [
UI
SAPI:63, TEI: 127, mei: 15, Ri: XXXXH, Message type 01 (H), Ai: 127
UI
SAPI:63, TEI: 127, mei: 15, Ri: XXXXH, Message type 02 (H), Ai: YYY
SABME
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
SAPI: 0, TEI: YYY
UA
SAPI: 0, TEI:YYY
Procedure on
SETUP
]
CALL PROC
CONN
]
CONN ACK
B ch
]
]
D ch
layer 3
D ch
layer 2
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
I
SAPI: 0, TEI: YYY [
DISC
SAPI: 0, TEI: YYY
UA
SAPI: 0, TEI: YYY
II - 6
DISC
]
REL
]
REL COMP
]
III. D Channel, Layer 3

D channel, layer 3-1 (Q.931: I.451)

F
1 oct
Protocol
discriminator
08H
Table 1
A
2 oct
C
1 or 2 oct
Call reference 1H XXH
Table 2
Message type
XXH
I
N oct
Differs depending on message type
FCS
2 oct
0~N oct
Table 1. Protocol Discriminator
87654321 00000000Users typical protocol identifier 00000001OSI high layer protocol 00000010Recommendation X.244 00000011Reserved for system management converse function 00000100A5 characters 00000111Standard JT-V.120 speed compatibility 0 0 0 0 1 0 0 0 Standard JT-Q.931 user/network setting message 00010000Reserved for other network layer or layer 3 protocol
| 00111111 01000000National use
01000001 01000010
| 01001111 01010000
| 11111110
Other than above Reserved
including standard JT-X.25
Recommendation X.208/X.209 (ASN.1: Abstract syntax descriptive method 1)
National use
Reserved for other network layer or layer 3 protocol including standard JT-X.25
F
1 oct
Table 2. Call Reference
87654321
Reserved Call reference length
0 0 0 0 0 0 0 1
F X X X X X X X
III - 1
F=0: Calling side F=1: Called side
F
1 oct
A
2 oct

D channel, layer 3-2 (Q.931:I.451)

C
1 or 2 oct
I
N oct
FCS
2 oct
F
1 oct
Protocol
discriminator
08H
Call reference
01H XXH
Table 3. Message Type

Message type

XXH
Table 3
Differs depending on message type
0~N oct
87654321 HEX Name Full name Function
0000001 01 ALERT ALERTING 0000010 02 CALL PROC CALL PROCEEDING
0000011 03 PROG PROGRESS Indicates call progress 0000101 05 SETUP SETUP Call set-up request
0000111 07 CONN CONNECT 0001101 0D SETUP ACK SETUP ACKNOWLEDGE 0001111 0F CONN ACK
0100000 20 USER INFO USER INFORMATION User to user signal 0100001 21 SUSP REJ SUSPEND REJECT
0100010 22 RES REJ RESUME REJECT 0100101 25 SUSP SUSPEND 0100110 26 RES RESUME 0101101 2D SUSP ACK
0
0101110 2E RES ACK 1000101 45 DISC DISCONNECT Call clear request
1000110 46 REST RESTART Initial setting request 1001101 4D REL RELEASE
1001110 4E REST ACK
1011010 5A REL COMP RELEASE COMPLETE
1100010 62 FAC FACILITY 1101110 6E NOTIFY NOTIFY
1110101 75 STAT ENQ STATUS ENQUIRY Party status inquiry 1111001 79 CONG CON
1111011 7B INFO INFORMATION 1111101 7D STAT STATUS
SETUP ACK, USER INFO, REST, REST ACK, FAC, and CONG CON not provided by NTT (as
Note:
of July 1989)
CONNECT ACKNOWLEDGE
SUSPEND ACKNOWLEDGE
RESUME ACKNOWLEDGE
RESTART ACKNOWLEDGE
CONGESTION CONTROL
III - 2
Informs that receiving side user is being called
Informs that ca l l s et -u p procedure is bei ng execu ted
Called side response notification
Acknowledgement of SETUP
Acknowledgement of CONN
Informs that temporary interruption is rejected
Informs that interrupted call cannot be resumed
Call temporary interrupt request
Interrupted call resume request
Temporary interruption complete notification
Interrupted call resume complete notification
Channel clear complete notification and call number clear request
Initial setting complete notification
Channel clear and call number clear complete notification
Additional service request and check
Notification of call information
Additional call control, and other information
User/network status notification
Informs the status of the user and the network.
Type
Call
setting
During
comm-
uni-
cation
Call
clear
Others
F
1 oct
A
2 oct

D channel, layer 3-3 (Q.931:I.451)

C
1 or 2 oct
I
N oct
FCS
2 oct
F
1 oct
Protocol discriminator
08H
Call reference
01H XXH
Table 4. Information Elements
1. SETUP (05)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 05
Bearer capability 04 Channel identifier 18 Optional Facilities 1C Optional Progress identifier 1E Optional Display 28 Optional Keypad 2C Optional Signal 34 Optional Feature activation 38 Optional Feature indication 39 Optional Calling party address 6C Optional Calling party subaddress 6D Optional Called party address 70 Optional Called party su badd ress 71 Optional Transit network selection 78 Optional
Low layer compatibility
High layer compatibility 7D Optional User to user 7E Optional
Mandatory Mandatory Mandatory Mandatory
7C Optional
Table 1 Table 2
Table 5 Table 6 Table 7 Table 8 Table 9
Table 10
Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21
3. ALERT (01)
Information element HEX Type Contents
Protocol discriminator 08
Call reference 01XX
Message type 01 Channel identifier 18 Optional Facilities 1C Optional Progress identifier 1E Optional Display 28 Optional Signal 34 Optional Feature activation 38 Optional Feature indication 39 Optional User to user 7E Optional
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3 Table 6 Table 7 Table 8 Table 9
Table 12 Table 13 Table 21
Message type
XXH
Differs depending on message type
0~N oct
Table 4: 1 to 25
2. CALL PROC (02)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 02
Channel identifier 18 Optional Progress identifier 1E Optional Display 28 Optional Feature indication 39 Optional
Mandatory Mandatory Mandatory
4. PROG (03)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 03
Cause 08 Optional Progress identifier 1E Optional Indication 28 Optional User to user 7E Optional
Mandatory Mandatory Mandatory
5. CONN (07)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 07 Channel identifier 18 Optional Facilities 1C Optional Progress identifier 1E Optional Display 28 Optional Signal 34 Optional Feature activation 38 Optional Feature indication 39 Optional
Low layer compat ibil ity
User to user 7E Optional
Mandatory Mandatory Mandatory
7C Optional
Table 1 Table 2 Table 3 Table 6 Table 8 Table 9
Table 13
Table 1 Table 2 Table 3
Table 22
Table 8 Table 9
Table 21
Table 1 Table 2 Table 3 Table 6 Table 7 Table 8 Table 9
Table 12 Table 13 Table 19 Table 21
III - 3
6. SETUP ACK (0D)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 0D Channel identifier 18 Optional Table 6 Progress identifier 1E Optional Table 8
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
7. CONN ACK (0F)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 0F Channel identifier 18 Optional Table 6 Display 28 Optional Table 9 Signal 34 Optional
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
8. USER INFO (20)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 21 More data 08 Optional Table 23 User to user 28 Optional Table 21
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
9. SUSP REJ (21)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 21 Cause indication 08 Optional Table 22 Display 28 Optional Table 9
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
10. RES REJ (22)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 22 Cause 08 Optional Table 22 Display 28 Optional Table 9
Fixed shift procedure 96 Optional Table 24 Charge notification 01 Optional Table 25
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
11. SUSP (25)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 25
Call identification 20 Optional Table 26
Mandatory Mandatory Mandatory
12. RES (26)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 26
Call identification 20 Optional Table 26
Mandatory Mandatory Mandatory
13. SUSP ACK (2D)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 2D
Display 28 Optional Table 9
Mandatory Mandatory Mandatory
14. RES ACK (2E)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX
Message type 2E Channel identifier 18 Optional Table 6 Display 28 Optional Table 9
Mandatory Mandatory Mandatory
15. DISC (45)
Information element HEX Type Contents
Protocol discriminator 08
Call reference 01XX
Message type 45 Cause 08 Optional Table 22 Facilities 1C Optional Table 7 Progress identifier 1E Optional Table 8 Display 28 Optional Table 9 Signal 34 Optional Table 11 Feature indication 39 Optional Table 13 User to user 7E Optional Table 21 Fixed shift procedure 96 Optional Table 24 Charge notification 01 Optional Table 25
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
Table 1 Table 2 Table 3
Table 1 Table 2 Table 3
Table 1 Table 2 Table 3
Table 1 Table 2 Table 3
III - 4
16. REST (46)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX
Message type 46 Channel identifier 18 Optional Table 6 Display 28 Optional Table 9 Initial setting indication 79 Optional Table 27
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
17. REL (4D)
Information element HEX Type Contents
Protocol discriminator 08
Call reference 01XX
Message type 4D Cause 08 Optional Table 22 Facilities 1C Optional Table 7 Display 28 Optional Table 9 Signal 34 Optional Feature indication 39 Optional Table 13 User to user 7E Optional Table 21 Fixed shift procedure 96 Optional Table 24 Charge notification 01 Optional Table 25
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
18. REST ACK (4E)
Information element HEX Type Contents
Protocol discriminator 08
Call reference 01XX
Message type 4E Channel Identifier 18 Optional Table 6 Display 28 Optional Table 9
Initial setting indication 79
Mandatory Mandatory Mandatory
Mandatory
Table 1 Table 2 Table 3
Table 27
20. FAC (62)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 62 Facilities 1C Display Optional Table 9
Mandatory Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3 Table 7
21. NOTIFY (6E)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 6E Transfer capability 04 Optional Table 5
Notification identifier 27 Display 28 Optional Table 9
Mandatory Mandatory Mandatory
Mandatory
Table 1 Table 2 Table 3
Table 28
22. STAT ENQ (75)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 75
Display 28 Optional Table 9
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
23. CONG CON (79)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 79
Congestion BX Cause 08 Optional Table 22 Display 28 Optional Table 9
Mandatory Mandatory Mandatory
Mandatory
Table 1 Table 2 Table 3
Table 29
19. REL COMP (5A)
Information element HEX Type Contents
Protocol discriminator 08
Call reference 01XX
Message type 5A Cause 08 Optional Table 22 Facilities 1C Optional Table 7 Display 28 Optional Table 9 Signal 34 Optional Feature indication 39 Optional Table 13 User to user 7E Optional Table 21 Fixed shift procedure 96 Optional Table 24 Charge notification 01 Optional Table 25
Mandatory Mandatory Mandatory
Table 1 Table 2 Table 3
24. INFO (7B)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX
Message type 7B Cause 08 Optional Table 22 Display 28 Optional Table 9 Keypad 2C Optional Table 10 Signal 34 Optional Feature activation 38 Optional Table 12 Feature indication 39 Optional Table 13
Mandatory Mandatory Mandatory
III - 5
Table 1 Table 2 Table 3
25. STAT (7D)
Information element HEX Type Contents Protocol discriminator 08 Call reference 01XX Message type 7D Cause 08 Call status 14
Display 28 Optional Table 9
Mandatory Mandatory Mandatory
Mandatory
Mandatory
Table 1 Table 2
Table 3 Table 22 Table 30
III - 6
Table 5. Bearer Capability (04)
87654321oct
Information element identifier 1
00000100
L I 2
Coding standard Information transfer capability 3
Extension
00:CCITT standard 01:Other international
10:National standard
1
11:Standard specific
standard
to network
Transfer mode Information transfer rate 4
Extension
1/0
00:Circuit-switched
exchange 10:Packet exchange Others: Reserved
Structure Configuration Establishment
Extension
1/0
000: Default 001: 8 kHz integrity 100: Service data unit integrity 111: Reserved Others: Reserved
Mode Information transfer rate (destination to origin)
Extension
00:Bidirectional
symmetric Others: Reserved
1
Layer 1 identifier User information layer 1 protocol
Extension
1/0
Extension
1/0
Synchronous/ asynchronous
0: Synchron­ous 1: Asynchron­ous
Inbound negotiation
0: Negotiation not possible 1: Negotiation possible
Layer 2 identifier User information layer 2 protocol
Extension
1
1 0
Layer 3 identifier User information layer 3 protocol
Extension
1
1 0
00000:Voice (speech) 01000:Unrestricted digital information 01001:Reserved 10000:3.1 kHz audio 11000:Reserved Others: Already reserved
00000:Packet exchange 10010:Reserved 10000:64 kbps 10011:384 kbps 10101:1536 kbps 10111:Reserved Others: Reserved
00:Point to point Others: Reserved
00000:Packet exchange 10010:Reserved 10000:64 kbps 10011:384 kbps 10101:1536 kbps 10111:Reserved Others: Reserved
00001:CCITT speed compatibility (V.110/X.30): Indicates that 5a to
5d exist. 00010:Recommendation G.711 00011:Recommendation G.711 A-law voice
01001:CCITT standard speed compatibility (JT-X.31): HDLC
flag stuffing
µ
-law voice
00:Immediate
connection
Others: Reserved
User speed
0111: 56 kbps Recommendation V.110 Others: Reserved
Unprovided
00010: TTC standard JT-Q.921 00110: TTC standard JT-X.25 link layer Others: Reserved
00010: TTC standard JT-Q.931 00110: TTC standard JT-X.25 packet layer Others: Reserved
*: Option
4a*
4b*
5*
5a*
5b* 5d*
6*
7*
|
III - 7
Table 6. Channel Identifier (18)
87654321oct
Information element identifier 1
00011000
L I 2
Exten-
sion
1
Int
id
Int
type
Spare
0
Pre/
Excl
D ch
ind
Information channel
0: Specified channel is not channel D 1: Specified channel is channel D
0: Network can change channel specified by
terminal
1: Network cannot change channel
specified by terminal
0: Basic interface 1: Other interface (primary group interface, etc.)
0: Interface implicitly identified 1: Interface explicitly identified by 1 or more octets from oct 3.1
selection
3
00: No channel 01: B1 channel 10: B2 channel 11: Any channel
87654321
Extension
1
Extension
1
Coding standard
00:CCITT/TTC
standard
01:Reserved for inter-
national standards other than CCITT/TTC
standard 10:National standard 11:Standard specific
to network
Interface identifier
Number/map
0: Indicates to next oct by number 1: Indicates to next oct by slot
Channel type/map element type
0011: Channel B unit 0110: Channel H0 unit 1001: Reserved Others: Reserved
Channel number/slot map
III - 8
oct
3.1*
3.2*
3.3*
*: Option
Table 7. Facilities (1C)
87654321
Information element identifier
00011100
L I
Extension
1
Reserved Service identifier
0 0
10001: Additional service application Others: Already reserved
Components
Table 8. Progress Identifi er (1E)
87654321
Information element identifier
00011110
L I
Extension
1
Coding standard
00:CCITT standard 01:Other internation-
al standard 10:National standard 11:Standard specific
to generation
source indicated
by bits 3 to 1 of
oct 3
Reserved
0
0000: User 0001: Private network accommodating local
0010: Public network accommodating local users 0011: Relay network
0100: Public network accommodating remote 0100: Private network accommodating remote 0101: International network
0111: Interworking destination network 1010: Reserved
Generation source
users (self side) (self side)
users (other party side) users (other party side)
oct
1
2 3
4
. .
==
. .
oct
1
2 3
Extension
1
Progress description
0000001:Call is not end-to-end ISDN. Afterwards, progress information
becomes inbound signal. 0000010:Non-ISDN destination 0000011:Non-ISDN originator 0000100:Returning call onto ISDN 0001000:Inbound signal or appropriate pattern can be used Others: Already reserved
III - 9
4
Table 9. Display (28)
87654321
Information element identifier
00101000
L I
Display infor mat io n
(IA5 characters)
MAX 32/80 oct
Table 10. Keypa d Facility (2C)
87654321
Information element identifier
00101100
L I
Keypad facility information
(IA5 characters)
MAX 32 oct
oct
1
2
3
. . .
==
. . .
oct
1
2
3
. . .
==
. . .
III - 10
Table 11. Signal (34)
87654321
Information element identifier
00110100
L I
00000001
Signal value
00000000: Dial tone 00000001: Calling tone 00000010: Interrupt tone 00000011: Network tone ON 00000100: Busy tone ON 00000101: Check tone ON 00000111: Response tone ON 00001000: Off hook warning tone ON 00111111: Tone OFF 01000000: Calling ON pattern 0 01000001: Calling ON pattern 1 01000010: Calling ON pattern 2 01000011: Calling ON pattern 3 01000100: Calling ON pattern 4
Method of use depends on the network
01000101: Calling ON pattern 5 01000110: Calling ON pattern 6 01000111: Calling ON pattern 7 01001111: Calling OFF Others: Reserved
Table 12. Featu re Activation (38)
oct
1
2
3
87654321
Information element identifier
00111000
L I
Extension
1/0
Extension
1
Feature identifier number (continued from above)
Feature identifier number
III - 11
oct
1
2
3
3a
Table 13. Featu re Indication (39)
87654321
Information element identifier
00111001
L I
Extension
1/0
Extension
1
Feature identifier number (continued from above)
Feature identifier number
Reserved Feature status indication
0000: InactiveFeature is in inactive condition 0001: Active Feature is in active condition
0000
0010: Prompt Feature is in prompt condition 0011: Execution Feature is in execution
Other: Already reserved
Status
condition
Meaning
Table 14. Calling Party Address (6C)
87654321
Information element identifier
01101100
L I
Number type Numbering/addressing plan
0000: Undefined 0001: ISDN/phone numbering plan
(recommendation E.164/E.163)
0011: Data numbering plan
(recommendation X.121)
0100: Telex numbering plan
(recommendation F.69) 1000: National numbering plan 1001: Private network numbering plan 1111: Reserved for expansion Others: Reserved
Network check identifier
00:Reserved 01:User insertion,
000
10:Reserved 11:Network insertion
Number digit
(IA5 characters)
MAX 32 oct
network check made, successful
Extension
1/0
Extension
1
Reserved
0
000: Undefined 001: International number 010: National number
Number specific to network
011: 100: Local number 110: Short dial number 111: Reserved for expansion Others: Reserved
Indication identifier Reserved
00:Indication possible 01:Indication not
possible
10:Mutual connection
condition, and no number can be displayed
11:Reserved
oct
1
2
3
3a
4
oct
1
2
3
3a
4
. . .
===
.
III - 12
Table 15. Calling Party Subaddress (6D)
87654321
Information element identifier
01101101
L I
Odd/even indication
0: Number of address signals is even 1: Number of address signals is odd
Reserved
000
Extension
1
Subaddress type
000: NSAP (X.213/ISO 8348 AD2) 010: Subaddress specific to user Others: Reserved
Format identification (AFI) [Indicates that subaddress is configured in IA5 characters] 01010000
Subaddress information
(IA5 characters)
MAX 19 oct
Table 16. Called Party Address (70)
87654321
Information element identifier
01110000
L I
Type of address Numbering plan identifier
0000: Undefined 0001: ISDN/phone numbering plan
(recommendation E.164/E.163)
0011: Data numbering plan
(recommendation X.121)
0100: Telex numbering plan
(recommendation F.69)
1000: National numbering plan
Extension
1
000: Undefined 001: International number 010: National number 011: Network specific number 100: Local number 110: Short dial number 111: Reserved for expansion Others: Reserved
1001: Private network numbering plan 1111: Reserved for expansion Others: Reserved
Reserved
=
=
0
Number digit
(IA5 characters)
MAX 19 oct
.
oct
1
2
3
4
5
.
==
. . .
oct
1
2 3
4
. .
=
. .
III - 13
Table 17. Called Party Subaddress (71)
87654321
Information element identifier
01110001
L I
Odd/even indication
0: Number of address signals is even 1: Number of address signals is odd
Reserved
000
Extension
1
Subaddress type
000: NSAP (X.213/ISO 8348
AD2) 010: Subaddress specific to user Others: Reserved
Format identifier (AFI) [Indicates that subaddress is configured in IA5 characters]
01010000
Subaddress information
(IA5 characters)
MAX 19 oct
Table 18. Trans it Network Selection (78)
87654321
Information element identifier
01111000
L I
Network identification type Network identification plan
Extension
=
000: User definition 010: National network 011: International network
1
Others: Reserved
=
0000: Undefined 0001: Carrier identification code 0011: Data network identification code
(recommendation X.121)
Others: Reserved
Network identifier
(IA5 characters)
oct
1
2 3
4
5
. .
==
.
oct
1
2 3
4
. .
=
. .
III - 14
Table 19. Low Layer Compatibility (7C)
87654321oct
01111100
Coding standard Information transfer capability 3
00:CCITT standard
Extension
Extension
Extension
Extension
Extension
Extension
01:Other international
standard
10:National standard
1/0
11:Standard specific
to network
Negotiation
specification
0: Outbound negotiation
1
not possible 1: Outbound negotiation possible
Transfer mode Information transfer rate 4
00:Circuit-switched
exchange 10:Packet exchange Others: Already reserved
1/0
000: Default 001: 8 kHz integrity 100: Service data unit integrity
1/0
111: Reserved Others: Reserved
00:Bi-directional
symmetric Others: Reserved
1
Layer 1 identifier Layer 1 protocol identifier 5*
1/0
01
000000
Structure Configuration Establishment 4a
Mode Information transfer rate (destination to origin) 4b
Information element identifier 1
L I
00000:Voice (Speech) 01000:Unrestricted digital information 01001:Reserved 10000:3.1 kHz audio 10001:Reserved 11000:Reserved Others: Already reserved
Reserved 3a*
00000:Packet exchange 10010:Reserved 10000:64 kbps 10011:384 kbps 10101:1536 kbps 10111:Reserved Others: Reserved
00:Point to point Others: Reserved
00000:Packet exchange 10010:Reserved 10000:64 kbps 10011:384 kbps 10101:1536 kbps 10111:Reserved Others: Reserved
00000:Undefined 00001:CCITT recommendation I.461 speed compatibility
00010:Recommendation G.711 00011:Recommendation G.711 A-law speech 00100:Recommendation G.721 32 kbps-ADPCM and
recommendation I.460 00110:Recommendation G.722 and 7 kHz-audio 00111:TTC non-standard speed compatibility (indicates
use of 5a-5d) 01000:TTC standard JT-V.120 speed compatibility (indicates
use of 5a-5d) 01001:TTC standard JT-X.31 speed compatibility (HDLC
flag stuffing)
-law speech
µ
00:Immediate
connection
Others: Reserved
2
Continued on nex t pa ge
III - 15
87654321oct
Extension
1/0
Extension
1/0
Synchronous/ asynchronous
0: Synchronous 1: Asynchronous
Intermediate speed
00:Unused 01:8 kbps 10:16 kbps 11:32 kbps
0: Negotiation not possible 1: Negotiation possible
00000:Speed is indicated by bit E of standard JT-I.460 00001:0.6 kbps recommendations X.1 and V.6 00010:1.2 kbps recommendation V.6 00011:2.4 kbps recommendations X.1 and V.6 00100:3.6 kbps recommendation V.6 00101:4.8 kbps recommendations X.1 and V.6 00110:7.2 kbps recommendation V.6 00111:8 kbps standard I.460 01000:9.6 kbps recommendations X.1 and V.6 01001:14.4 kbps recommendation V.6 01010:16 kbps standard I.460 01011:19.2 kbps recommendation V.6 01100:32 kbps standard JT-I.460 01100:48 kbps recommendations X.1 and V.6 01111:56 kbps recommendation V.6 10101:0.1345 kbps recommendation X.1 10110:0.100 kbps recommendation V.6 10111:0.075 kbps (origin to destination)/1.2 kbps
(origin to destination) recommendations V.6 and X.1
11000:1.2 kbps (outgoing to incoming)/0.075 kbps (origin to
destination) recommendations V.6 and X.1 11001:0.050 kbps recommendations X.1 and V.6 11010:0.075 kbps recommendations X.1 and V.6 11011:0.110 kbps recommendations X.1 and V.6 11100:0.150 kbps recommendations X.1 and V.6 11101:0.200 kbps recommendations X.1 and V.6 11110:0.300 kbps recommendations X.1 and V.6 11111:1.2 kbps recommendation V.6 Others: Reserved
Transmission
NIC
0: Data need not be transmitted with network’s independent clock 1: Data must be transmitted with network’s independent clock
Receive NIC
0: Cannot be received with network’s independent clock 1: Can be received with network’s independent clock
User speed 5a*
Transmission
flow control
0: Flow controlled transmission not necessary for data transmission 1: Flow controlled transmission necessary for data transmission
Receive flow
control
0: Flow controlled transmission data cannot be received 1: Flow controlled transmission data can be received
Reserved 5b*
0
Extension
1/0
Speed
compatibility
header
0: Speed compatibility header not included 1: Speed compatibility header included
Multiplex frame
support
0: Multiplex frame not supported (accepts UI only) 1: Multiplex frame supported
Operation
mode
0: Bit transparent mode 1: Protocol sensitive mode
Logic link
identifier
negotiation
0: Default LLI=256 1: Complete protocol
Assign/assigned
0: Calling party default is assigned 1: Only assigned by calling party
Continued on nex t pa ge
III - 16
Inbound/outbo
und
negotiation
0: Performed by user information on temporary signal connection 1: Performed inbound using logic link 0
Reserved 5b*
0
87654321oct
Number of data bits
including parity
00:Unused 01:5 bits 10:7 bits 11:8 bits
Coded in accordance with rules specific to network
00001:ISO1745 basic mode 00010:TTC standard JT-Q.921 00110:TTC standard JT-X.25 link layer 00111:CCITT recommendation X.25 multi-link 01000:Extention LAPB; For half-duplexed (T.71) 01001:HDLC ARM (ISO4335) 01010:HDLC NRM (ISO4335) 01011:HDLC ABM (ISO4335) 01101:LAN logical layer control (ISO8802.2) 01101:Standard JT-X.75 single link procedure (SLP) Others: Reserved
Optional layer 2 protocol information 6a*
Undefined
00000:Undefined 00010:TTC standard JT-Q.931 00110:TTC standard JT-X.25 packet layer 00111:ISO 8208 (X.25 packet layer protocol) 01000:ISO 8348 (Specific subset of ISO8208 and standard
JT-X.25) 01001:ISO8473 (OSI connectionless service) 01010:CCITT recommendation T.70 minimum network layer
Optional layer 3 protocol information 7a*
Undefined
000: Odd 010: Even 100: Forced to set to 0 101: Forced to set to 1 Others: Reserved
Modem type 5d*
Parity information 5c*
Extension
1/0
Extension
1
Extension
1/0
Extension
1
Extension
1/0
Extension
1
Number of stop bits
00:Unused 01:1 bit 10:1.5 bits 11:2 bits
Duplex mode
0: Half-duplex 1: Full duplex
Layer 2 identification Layer 2 protocol identification 6*
10
Layer 3 identification Layer 3 protocol identification 7*
11
*: Option
III - 17
Table 20. High Layer Compatibility (7D)
87654321
Information element identifier
01111101
L I
Protocol profile
expression method
01: High protocol profile
(no group network attribute)
Others: Reserved
Extension
1
Coding standard Interpretati on method
00:CCITT standard 01:Other international
standard 10:National standard 11:Standard specific
to network
100: First high layer charac-
teristics identification
Others: Reserved
High layer characteristics identification
0000001:Telephone (recommendation G.711) 0000100:G2/G3 facsimile (recommendation T.62) 0100001:Document application profile for G4 facsimile (class 1)
(recommendation T.503)
0100100:Document application profile for formatted mixed mode
(recommendation T.501)
Extension
0101000:Document application profile in format that can be processed
(recommendation T.502)
0110001:Telex (recommendations T.62 and T.70)
1/0
0110010:Document application profile for interworking between videotex
gateways (recommendation T.504) 0110101:Telex 0111000:Message handling system (MHS) (recommendation X.400 series) 1000001:OSI application (recommendation X.200 series) 1011110:Reserved for maintenance 1011111:Reserved for management Others : Reserved
Extension to high layer characteristics identification 0000001:Telephone (recommendation G.711)
0000100:G2/G3 facsimile (recommendation T.62) 0100001:Document application profile for G4 facsimile (class 1)
(recommendation T.503) 0100100:Document application profile for formatted mixed mode
(recommendation T.501)
Extension
0101000:Document application profile in format that can be processed
(recommendation T.502) 0110001:Telex (recommendations T.62 and T.70)
1
0110010:Document application profile for interworking between videotex
gateways (recommendation T.504) 0110101:Telex 0111000:Message handling system (MHS) (recommendation X.400 series) 1000001:OSI application (recommendation X.200 series) 1011110:Cannot be assigned 1011111:Cannot be assigned Others: Reserved
*: Option
oct
1
2 3
4
4a*
III - 18
Table 21. User-to-user Information (7E)
87654321
Information element identifier
01111110
L I
Protocol identifier
00000000: User’s own protocol 00000001: OSI high layer protocol 00000010: Recommendation X.244 00000011: Reserved for system management converse function 00000100: IA5 characters 00000111: Standard JT-V.120 speed compatibility 00001000: Standard JT-Q.931 user network call control message 00010000
Reserved for other layer 3 protocols including standard JT-X.25 00111111 01000000: National use 01000001: Recommendations X.208/X.209 (ASN.1: Abstract syntax descriptive
method 1)
01000010
National use 01001111 01010000
Reserved for other layer 3 protocols including standard JT-X.25 11111110 Others: Reserved
User information
(no coding rules)
MAX 128 oct
oct
1
2 3
4
. .
==
. .
III - 19
Table 22. Cause (08)
87654321
Information element identifier
00001000
L I
Coding standard Reserved Generation source
0000: User 0001: Private network directly connected to user
Extension
1/0
00:CCITT standard 01:Other international
standard
10:National standard 11:Standard specific
to generation
source indicated by
bits 4 to 1 of oct 3
0010: National network directly connected to
user 0011: Relay network 0100: National network directly connected to
0
other party 0100: Private network directly connected to
other party 0101: International network 0111: Interworking destination network 1010: Reserved
Recommendation
Extension
0000000:TTC standard JT-Q.931 0000011:X.21
1
0000100:TTC standard JT-X.25 Others: Reserved
Cause indication (class) Cause type (value)
000: Normal event
Extension
001: Normal event 010: Network congestion 011: Service or option cannot
1
be used
XXXX
101: Invalid message 110: Protocol error 111: Interworking
Diagnostic (if any)
*: Option
oct
1
2 3
3a*
4
5*
III - 20
Table 22-1. Cause Information Element (CPS Indication)
Class
Cause type
value
7654321
0
0
0
X
X
X
X
1
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
1
0
0
1
0
0
1
1
0
0
1
0
0
1
0
1
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
1
0
0
1
1
0
1
1
0
0
0
0
1
1
1
0
0
1
0
1
1
1
0
0
0
1
1
1
1
0
0
1
1
1
1
1
0
0
Number Cause Diagnostic
Normal event class Unassigned number
# 1
No route to specified transit network
# 2
No route to other party
# 3
Channel cannot be used
# 6
Call came to already set channel
# 7
Normal disconnect
# 16
Other party busy
# 17
No response from other party
# 18
Calling party/no response
# 19
Communication rejected
# 21 # 22
Other party s ubscriber terminal number changed
# 26
Wrong number; disconnection recovery
# 27
Other party terminal out of order
# 28
Invalid number format (incomplete number)
# 29
Facility rejection
# 30
Response to status enquiry
# 31
Other normal class
Transit network identificatio n
User provided information
New other par ty s ubscriber number
Facility identifier
X
X
X
X
0
1
0
0
1
0
0
0
1
0
0
1
1
0
0
1
0
1
0
0
1
0
1
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
0
0
1
1
0
1
0
1
1
1
1
0
1
0
X
X
X
X
1
1
0
1
0
0
0
1
1
0
0
1
0
0
1
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
1
1
1
0
Resource unusable class No usable line/channel
# 34
Network fault
# 38
Temporary fault
# 41
Network congestion
# 42
Discarded information element identifier
# 43
Requested line/channel cannot be used
# 44
Other resources unusable class
# 47
Service unusable class QOS cannot be used
# 49
Requested facility not contracted
# 50
Transfer capability not allowed
# 57
Transfer capability not allowed at present
# 58
Other unusable service or option class
# 63
Access information discarded
Facility identifier
III - 21
Class
Cause type
value
7654321
X
X
X
X
0
0
1
1
0
0
0
0
0
1
0
1
0
0
0
0
1
1
0
1
0
0
0
1
0
1
1
0
0
0
1
1
1
1
1
0
0
1
Number Cause Diagnostic
Service unprovided class Bearer service not implemented
# 65
Channel type specification not implemented
# 66
Facility request not implemented
# 69
Only restricted digital inf ormatio n be arer ca pa bility a vaila ble
# 70 # 79
Other unprovided service or option class
Channel type Facility identifier
X
X
X
1
0
1
0
0
0
1
0
1
1
0
0
1
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
0
1
0
0
1
1
0
1
1
0
1
1
0
1
1
1
1
1
0
1
X
X
X
0
1
1
0
0
0
0
1
1
0
0
0
0
1
1
1
0
0
0
1
1
1
0
0
0
1
1
0
1
0
0
1
1
0
1
0
0
1
1
1
1
0
0
1
1
1
1
1
0
1
1
111111X1X1X1X
X
# 81
1
# 82
0
# 83
1
# 84
0
# 85
1
# 86
0
# 88
0
# 91
1
# 95
1
X
# 96
0
# 97
1
# 98
0
# 99
1
# 100
0
# 101
1
# 102
0
# 111
1
1 # 127
Invalid message class Invalid call reference value Invalid channel reference value
Specified interrupted call identification number not used
Interrupted call identification number being used No interrupted call
Connection of specified interrupted call already restored
Terminal attribute incompatible Transit network does not exist Other invalid message class
Procedure error class Mandatory information insufficient Message type undefined or unprovided Call status and message not matched or message type undefined Information element undefined Information element content invalid Recovery by timer time up Timer number Other procedure error class
Interworking class Other interworking class
"Channel identifier"
"Incompatible parameter"
"Message type"
Information element identifier
"Message type" "Message type"
Information element identifier Information element identifier
Others Already reserved
III - 22
Table 22-2. Diagnostic (Oct 5 of Cause)
For cause numbers #1, #3, #16, #21, and #49
87654321
00: Undefined
1000
0
01: Fixed
0
10: Temporary Others: Reserved
For cause numbers #57 , #5 8, and #65
87654321
Attribute number
0110001:Information transfer capability 0110010:Information transfer mode
Extension
0110011:Information transfer rate 0110100:Structure
1/0
0110110:Call set-up method 0110111:Symmetry 0111000:Information transfer rate (destination to origin) 0111001:Layer identification
Rejection attribute (information transfer capability)
00000: Voice (Speech)
Extension
1/0
00
01000: Unrestricted digital information 01001: Reserved 10000: 3.1 kHz audio 10001: Reserved 11000: Reserved Others: Already reserved
Rejection attribute (Information transfer mode)
1/0
00:Circuit-switched
exchange 10:Packet exchange Others: Already
reserved
0000 0
Extension
Rejection attribute (Information transfer rate)
Extension
1/0
00
00000: Packet exchange 10010: Reserved 10000: 64 kbps 10011: 384 kbps 10101: 1536 kbps 10111: Reserved Others: Reserved
Rejection attribute (Structure)
000: Default
Extension
001: 8 kHz integrity 100: Preserve service data unit
1/0
integrity
0000
111: Reserved Others: Reserved
Continued on the next page
oct
5*
oct
5*
5a*
5a*
5a*
5a*
III - 23
==
87654321
Extension
1/0
000
Rejection attribute (Communication mode)
00: Point to point Others: Reserved
00
Rejection attribute (Call set-up procedure)
Extension
1/0
00000
00: Immediate
connection
Others: Reserved
Rejection attribute (Asymmetrical characteristics)
Extension
1/0
00: Bi-directional
symmetric
Others: Reserved
00000: Packet exchange 10010: Reserved 10000: 64 kbps 10011: 384 kbps 10101: 1536 kbps 10111: Reserved Others: Reserved
Rejection attribute (Layer 1 identification)
Extension
1/0
01: Layer 1
00001: CCITT speed compatibility (V.110/X.30)
µ
00010: Recommendation G.711
-law voice 00011: Recommendation G.711 A-law voice 01001: TTC standard speed compatibility
(JT-X.31):HDLC flag stuffing
Rejection attribute (layer identification)
Extension
10: Layer 2 00010: TTC standard JT-Q.921
1/0
00110: TTC standard JT-X.25 packet layer Others: Reserved
Rejection attribute (layer identification)
Extension
11: Layer 3 00010: TTC standard JT-Q.931
1/0
00110: TTC standard JT-X.25 packet layer Others: Reserved
Usable attributes
Extension
1
Same coding as oct 5a
oct
5a*
5a*
5a*
5a*
5a*
5a*
5b*
III - 24
*: oct 5a to oct 5b may be repeated
*: Option
Table 23. More Data (A0)
87654321
Information element identifier
10100000
Table 24. Fixed Shift Procedure (96) [Extension of Code Group]
The following two code group shift procedures are available:
1. Fixed shift procedure
2. Temporary shift procedure
1. Fixed shift procedure The fixed shift procedure is us ed to indicate the code group newly selected. Once specified, the code group is maintained until a fixed shift information element which specifies the use of another code group appears. For the charge information notification service, "charge notification" information is sent by code group 6 using this procedure.
87654321
Shift identifier
1
001
0
Code group identifier
000: Cannot be used 001
Reserved 100 101: Code group 5: Information
element specific nationally 110: Code group 6: Information
element specific to network 111: Code group 7: Information
element specific to user
2. Temporary shift procedure The temporary shift procedure is used when temporarily shi fting to a certain code group. In the temporary shift procedure, a single-fixed-length information element is used to identify the code group of the information element which follows it. After ana­lyzing the latter information element, the code group which was used before the tem­porary shift procedure was executed will again be used for analyzing the next information element.
oct
1
oct
1
87654321
Shift identifier
1
001
0
Code group identifier
000: Code group 0: TTC standard
JT-Q.931 information element
001
Reserved 100 101: Code group 5: Information
element specific nationally 110: Code group 6: Information
element specific to network 111: Code group 7: Information
element specific to user
oct
1
III - 25
Table 25. Charge Notification (01)
87654321
Information element identifier
00000001
L I
Extension
1
Reserved Charge type
000
Charge indication
(IA5 characters)
11 oct MAX (Note)
0010: Total charge Others: Reserved
Note: •11 digits max. (9 integer digits + decimal po in t + 1 fra ct io n digit)
However, if there is no decimal point or fraction, 11 digits are used for integer
digits. The first octet is the highest octet.
oct
1
2 3
4
. . .
==
.
III - 26
Table 26. Call Identification (20)
87654321
Information element identifier
00100000
L I
Call identification
(arbitrary bit pattern is possible)
8 oct max.
Table 27. Initial Setting Indication (79)
87654321
Information element identifier
01111001
L I
Reserved Class
Extension
1
000
000: Indicated channel 110: One interface
0
111: All interfaces Others: Reserved
Table 28. Notification Id en tifi er (27 )
87654321
Information element identifier
00100111
L I
Notification type
Extension
0000000:User interruption
1
0000001:User resumption 0000010:Change of bearer service
oct
1
2 3
. .
==
. .
oct
1
2 3
oct
1
2 3
III - 27
Table 29. Congestion Level (BX)
87654321
Information element identifier Congestion control level
1
011
0000: RR (receive side can receive) 1111: RNR (receive side cannot receive) Others: Already reserved
Table 30. Call Status (14)
87654321
Information element identifier
00010100
L I
Coding standard Call status number
00:CCITT standard 01:Other international
standard 10:National standard 11:Standard specific
to the network
000000 000001 000011 000100 000110 000111 001000 001001
001010 001011
001100 001111
010001 010011 010110
Others
000000 111101 111110 Others
Terminal side status
U0 Available U1 Call U3 Call accept U4 Call notification U6 Incoming call U7 Calling U8 Response U9 Incoming call
accept
In communication
U10 U11 Disconnect
request
U12 Disconnect
notification U15 Interrupt request U17 Resume request U19 Release request
Reserved
Reserved
Global interface status value
: Initial setting 0 - Available : Initial setting 1 - Initial setting request : Initial setting 2 - Initial setting
: Reserved
Network side status
N0 Available N1 Call N3 Call accept N4 Call notification N6 Incoming call N7 Calling N8 Response N9 Incomming call
accept
In communication
N10 N11 Disconnect
request
N12 Disconnect
notification N15 Interrupt request N17 Resume request N19 Release request N22 Call discard
Reserved
oct
1
oct
1
2 3
III - 28
IV. B Channel, Layer 2
NTT
DSU
D70

Configuration of B channel, layers 1 to 7

··
··
··
I
S
N
→ → → → → →
B1 B1 B1 B1 B1 B1 B1 E DDL.F
→ → → → → →
Ping-pong transmission
L1
L2
Data (MMR)CDUI
TU
TA
TB
RA
RB
→ → → → → → → → → →
→ → → → → → → → → →
TE1 TE1
100
L
100 AYE
1
R
1380XX····0482XXXXXX····················································
PLD
12XX····
DLD
1203020100
010010XX··
CSUI
01 00
TDI
02F080
FLAG A C I FCS FLAG
DL. B1 B1 B1 B1 B1 B1 B1 B1 E D A FA N B2 B2 B2 B2 B2 B2 B2 B2 E D M B1 B1 B1 B1 B1 B1 B1 B1 E D S B2 B2 B2 B2 B2 B2 B2 B2 E L.FL.
0(-)
0(+)
1
L
AYE
011 1 111 0XX0 0 0000XXXX XXXXXXXX XXX···X XXXXXXXXXXXX XXXX0 1 1 111 1 0X
R
DT
2
L
AYE
Layer 3 Layer 4 Layer 5 Layer 6
2001XXXX
3
R
b_ch.wmf
IV - 1

B channel, layer 2 (X.25 link level: LAPB)

F
1 octA1 octC1 oct
Address field
value (H)
Command from DTE
01
Response from DTE Command from DTE
03
Response from DTE
F
1 octA1 octC1 oct
Information (I) "data"
Monitor (S) "Re-
sponse to (I)"
Unnumbered (U)
"Adaptive link con-
trol"
RR (Receive ready) RNR (Receive not ready) 0 1 0 1 REJ (Retransmission request) 1 0 0 1 SABM (Set asynchronous
balanced mode) UA (Unnumbered
acknowledgment) DISC (Disconnect) 0 1 1 P 0 0 1 1 DM (Disconnect mode) 0 0 0 F 1 1 1 1 FRMR (Frame reject) 1 0 0 F 0 1 1 1
Definition
→
← ←
→
I
N oct
DCE
DCE DCE
DCE
I
N oct
N (R) Receive order
FCS
2 oct
F
1 oct
C
DCEDTE
R C
DCEDTE
R
FCS
2 oct
87654321
N (S) Transmission
number
N (R) Number that
can be accepted
001P1111
011F0011
P
order number
0001
P/F
F
1 oct
0
P/F (poll/final) bit .... Indicates the final frame and requests a response from the other
Note:
party.
IV - 2
Monitor (S) "Re-
sponse to (I)"
Unnumbered (U)
"Adaptive link con-
trol"
——— Extended mode ... Modulo 128 format ———
16 ~ 10 9 87654321
Information (I) "data"
RR (Receive ready) RNR (Receive not ready) 00000101 REJ (Retransmission request) 000010 SABM (Set asynchronous balanced
mode) UA (Unnumbered acknowledgment) 0 1 1 F 0011 DISC (Disconnect) 0 1 0 P 0011 DM (Disconnect mode) 0 0 0 F 1111 FRMR (Frame reject) 100F0111
N (R) Receive
order number
N (R) Number
that can be
accepted
N (S) Transmission order
P
P/F
number
00000001
011P1111
0
0
1
Command (C)/Response (R) C R Function
(Receive Ready)
RR
: Receive ready
(Receive Not Ready)
RNR
: Cannot receive
(REJect)
REJ
: Retransmission request
(Set Asynchronous
SABM
Balanced Mode)
: Asynchronous balanced
mode setting
(SABM Extended)
SABME
: Extended asynchronous
balanced mode setting
(Unnumbered Acknow-
UA
ledgment)
: Unnumbered
acknowledgment)
(DISConnect)
DISC
: Disconnect
(Disconnect Mode)
DM
: Disconnect mode
(FRaMe Reject)
FRMR
: Frame reject
OO
OO
OO
O
O
O
Information frame can be received.
Acknowledges information frames up to N(R) - 1.
Indicates busy state, and continuous incoming
information frames cannot be accepted temporarily. Busy state is released by outputting RR, REJ,
SABM, or UA frame. Since information frames after frame number N(R)
were not accepted, requests retransmission. Sets up the Information transfer phase mode.
Used to set up the asynchronous balanced mode
(ABM). (Every command/response control field length is 1 octet.)
Sets up the Information transfer phase mode.
Used to set up the extended asynchronous
balanced mode (ABM). (Control field length is 2 octets.)
Acknowledgment for mode setting/disconnect
O
Ends the operation mode that has been set up.
(Operation stopped state) Notifies about logical disconnection from data link
and that the terminal is currently in the disconnect
O
phase. Notifies that execution is not possible for mode
setting. Any error that cannot be corrected by
O
retransmitting the same frame is informed by the information field.
Informatio
n field
None
None
None
None
None
None
None
None
Yes
IV - 3
V. B Channel, Layer 3

B channel, layer 3 (X.25 packet level)

F
1 octA1 octC1 oct
I
N oct
Calling side Called side
Call setting and release
r
0B
0F
13
17
DTE → DCE DTE ← DCE DCE → DTE DCE ← DTE
identifier
Packet type
CR: Call Request
CC: Call Connected
CQ: Clear Request
CF:
Clear Confirmation XX DT: Data 23 IT: Interrupt
interrupt
27 IF: Interrupt Confirmation
Data and
X1 RR: Receive Ready X5 RNR: Receive Not Ready
REJ:
X9
Reject RQ:
1B
Reset Request
1F
Flow control and reset
FB
Restart
FF
SQ: Restart Request
RF:
Reset Confirmation
SF:
Restart Confirmation
CN: Incoming Call
CI: Clear Indication
RI: Reset Indi c a tion
SI: Restart Indication
FCS
2 oct
F
1 oct
CA: Call Accepted
CF: Clear Confirmation
REJ: Reject
RF: Reset Confirmation
SF: Restart Confirmation
V - 1

Layer 3 connection and clearing procedure

Call and clear procedure

Transparent transfer within network
Set-up call
Call
TE
Call request Incoming call
Net­work
Called
TE
CNCR
(accept in­coming call)
Set-up call (reject in­coming call)
Reject
confir-
mation
Clear call Clear request Clear indication

Reset procedure

Reset request
Connected
Call request Incoming call
Clear indication
Clear confirmation
CACC
CNCR
CQCI
CFCF
CICQ
Clear confirmation Clear confirmation
Call
TE
Net­work
Reset request Reset indication
Reset request
CFCF
RIRQ
RFRF
Incoming call accept
Clear confirmation
Reject incoming call
Incoming
TE
Reset confirmation
Clear
request

Restart procedure

Restart request
SFSF
Incoming
TE
SISQ
Restart confirmation
Call
TE
Net­work
Restart request Restart indication
Restart request
V - 2

Packet format

Signal name or status
name, etc.
Call request CR packet
[0B]
Definition
Packet used to request a call
oct87654321
General format identifier (GFI)
0 0 1 0
2
3
Logical channel number (LCN)
Packet type identifier (TYP)
Logical channel group
number (LCGN)
0 0 0 0 1 0 1 1
4 Calling side subscriber line
number length (CLL)
Called side subscriber line
number length (CDL)
Calling side subscriber line number (DA)
A
B
1
C1 D
1 1
E1 F
G1 0 0 0 0
Called side subscriber line number (SA)
A
B
2
C2 D
E2 F
G2 0 0 0 0
0 1 0 0 0 0 1 0
Called DTE packet size: Logarithmic, base 2 (e.g, if 8 is
stored here, pakcet size is 128)
Calling DTE packet size: Logarithmic, base 2 (e.g, if 8 is
stored here, pakcet size is 128)
0 1 0 0 0 0 1 1
Called DTE window size: Binary coded
Calling DTE window size: Binary coded
Call user data (DATA) field
C
CR:
all-Request
1
2 2
2
Facility length (FL)
Facility (packet size)
Facility (window size)
V - 3
Signal name or status
name, etc.
Incoming call request CN packet
[0B]
Definition
Packet used to inform of an incoming call
oct87654321
General format identifier (GFI)
0 0 1 0
2
Logical channel number (LCN)
Logical channel group
number (LCGN)
3 Packet type identifier (TYP)
0 0 0 0 1 0 1 1
4 Calling side subscriber line
number length (CLL)
Called side subscriber line
number length (CDL)
Calling side subscriber line number (DA)
A
B
1
C1 D
1
1
E1 F
G1 0 0 0 0
Called side subscriber line number (SA)
A
B
2
C2 D
E2 F
G2 0 0 0 0
Facility length (FL)
Facility (packet size)
0 1 0 0 0 0 1 0
Called DTE packet size: Logarithmic, base 2 (e.g., if 8 is
stored here, packet size is 128)
Calling DTE packet size: Logarithmic, base 2 (e.g., if 8 is
stored here, packet size is 128)
Facility (window size)
0 1 0 0 0 0 1 1
Called DTE window size: Binary coded
Calling DTE window size: Binary coded
Call user data (DATA) field
CN packet form
n
CN: I
coming Call
1
2
2
2
V - 4
Signal name or status
name, etc.
Incoming call request CA packet
[0F]
Definition
Packet used to inform of incommng call acceptance
oct87654321
General format identifier (GFI)
0 0 1 0
2
3
0 0 0 0 1 1 1 1
4
C
CA:
all Accept
Logical channel number (LCN)
Packet type identifier (TYP)
Same coding as that of the CR/CN packet
Logical channel group
number (LCGN)
Signal name or status
name, etc.
Connection complete CC packet
[0F]
Definition
Packet used to inform that connection is complete
oct87654321
General format identifier (GFI)
0 0 1 0
2
3
0 0 0 0 1 1 1 1
4
C
CC:
all Connected
Logical channel number (LCN)
Packet type identifier (TYP)
Same coding as that of the CR/CN packet
Logical channel group
number (LCGN)
V - 5
Signal name or status
name, etc.
Clear request CQ packet
[13]
Definition
Packet used by terminal equipment to reject the incoming call or to request to clear the call
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 0 1 0 0 1 1
4 Cause of clearing (CAUSE)
0 0 0 0 0 0 0 0
5
6
0 0 0 0 0 0 0 0
7
C
CQ:
all Request
Logical channel number (LCN)
Diagnostic code (DIAG)
Clear user data (DATA) filed
Logical channel group
number (LCGN)
Signal name or status
name, etc.
Clear request CI packet
[13]
Definition
Packet used by line terminal equipment to request to clear the call
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 0 1 0 0 1 1
4
0 0 0 0 0 0 0 0
5
6
0 0 0 0 0 0 0 0
7
C
CI:
all Indication
Logical channel number (LCN)
Cause of clearing (CAUSE)
Diagnostic code (DIAG)
Clear user data (DATA) filed
Logical channel group
number (LCGN)
V - 6
Signal name or status
name, etc.
Clear confirmation CF packet
[17]
Clear confirmation CF packet
Definition
Packet used by line terminal equipment to confirm the call clearance
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 0 1 0 1 1 1
C
all Confirmation
CI: Packet used by terminal equipment to confirm the call clearance
The format is the same as the clear confirmation (CF) packet format.
Logical channel number (LCN)
Logical channel group
number (LCGN)
Signal name or status
name, etc.
Reset request RQ packet
[1B]
Reset indication RI packet
Definition
Packet used by terminal equipment to request resetting of the transmit/receive order number
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3
0 0 0 1 1 0 1 1
4
R
eset Request
RQ: Packet used by line terminal equipment to request resetting of the
transmit/receive order number The format is the same as the reset request (RQ) packet format.
Logical channel number (LCN)
Packet type identifier (TYP)
Reset cause (CAUSE)
Diagnostic code (DIAG)
Logical channel group
number (LCGN)
V - 7
Signal name or status
name, etc.
Reset confirmation RF packet
[1F]
Definition
Packet used for confirming resetting of the transmit/receive order number
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 0 1 1 1 1 1
RF: Reset Con
Logical channel number (LCN)
f
irmation
Logical channel group
number (LCGN)
Signal name or status
name, etc.
Interrupt IT packet
[23]
Signal name or status
name, etc.
Interrupt confirmation IF packet
[27]
Definition
Packet used for sending data when transmission is restricted (when RNR is received)
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 1 0 0 0 1 1
4
Int
IT:
errupt
Packet used for confirming interrupt data
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
Logical channel number (LCN)
Interrupt user data (IDT)
Definition
Logical channel number (LCN)
Logical channel group
number (LCGN)
Logical channel group
number (LCGN)
3 Packet type identifier (TYP)
0 0 0 1 1 1 1 1
I
IF:
nterrupt Confirmation
V - 8
Signal name or status
name, etc.
Restart request SQ packet
[FB]
Definition
Packet used for requesting terminal equipment to clear all calls
oct87654321
1 General format identifier (GFI)
0 0 1 0 0 0 0 0
2
0 0 0 0 0 0 0 0
3 Packet type identifier (TYP)
1 1 1 1 1 0 1 1
4 Restart cause (CAUSE)
0 0 0 0 0 0 0 0
5
s
SQ: Re
tart Request
Diagnostic code (DIAG)
Signal name or status
name, etc.
Restart indication SI packet
[FB]
Signal name or status
name, etc.
Restart confirmation SF packet
[FF]
Definition
Packet used for indicating to line terminal equipment to clear all calls
oct87654321
1 General format identifier (GFI)
0 0 1 0 0 0 0 0
2
0 0 0 0 0 0 0 0
3 Packet type identifier (TYP)
1 1 1 1 1 0 1 1
4 Restart cause (CAUSE)
0 0 0 0 0 0 0 0
5
s
tart Indication
SI: Re
Packet used for confirming that all calls are cleared
oct87654321
1 General format identifier (GFI)
0 0 1 0 0 0 0 0
2
0 0 0 0 0 0 0 0
3 Packet type identifier (TYP)
1 1 1 1 1 1 1 1
Diagnostic code (DIAG)
Definition
s
tart Confirmation
SF: Re
V - 9
Signal name or status
name, etc.
Facility request FQ packet
[43]
Definition
Packet used for request to register/clear closed area connection service
oct87654321
General format identifier (GFI)
0 0 1 0
2
Logical channel number (LCN)
Logical channel group
number (LCGN)
3 Packet type identifier (TYP)
0 1 0 0 0 0 1 1
4 Calling side subscriber line
number length (CLL)
Called side subscriber line
number length (CDL)
Called side subscriber line number (DA)
A
B
1
C1 D
1
1
F
FQ:
acility Request
E1 F
1
G1 0 0 0 0
Calling side subscriber line number (SA)
A
B
2
C2 D
E2 F
2
2
2
G2 0 0 0 0
Facility length (FL)
0 0 0 0 0 0 1 1
Facility code (F)
0 1 0 0 0 0 0 0
Party specification number
N
N
1
N3 N
2
4
V - 10
Signal name or status
name, etc.
Receive ready RR packet
[01]
Definition
Packet used to indicate that data can be confirmed and received
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 0 0 0 0 0 1
4
R
eceive Ready
RR:
Logical channel number (LCN)
Receive order number P (R) 0
Logical channel group
number (LCGN)
Signal name or status
name, etc.
Receive not ready RNR packet
[05]
Definition
Packet used to indicate that data cannot be confirmed and received
oct87654321
1 General format identifier (GFI)
0 0 1 0
2
3 Packet type identifier (TYP)
0 0 0 0 0 1 0 1
4
R
eceive Not Ready
RNR:
Logical channel number (LCN)
Receive order number P (R) 0
Logical channel group
number (LCGN)
V - 11
Signal name or status
name, etc.
Data DT packet
Definition
Packet used to transfer data between subscribers
oct87654321
1 General format identifier (GFI)
Q 0 1 0
2
Logical channel number (LCN)
Logical channel group
number (LCGN)
[XX]
3
4
5
. . . . . . . . .
Dat
DT: Q: Qualifier bit M: More data indication
a
Transmit order number P (S)
Receive order number P (R) M
0
User data (DATA)
V - 12
VI. B Channel, Layer 4
1. Transport lay er control block
Block Block
Code
H
Estab-
lishment
control
Information
transfer
Error
notification
EO
F0 70
(T Connection Request)
TCR
: Connection request
TDT (T Data Block)
: Data transfer
TBR (T Block Reject)
: Error notification
2. Transport service sequence
B channel, layer 4
Name
Code
H
D0 80
CCITT recommendation T.70
Name
TCA (T Connection Accept)
: Connection accept
TCC (T Connection Clear)
: Connection clear
a) TC establis hment successful
TS user TS user
T-CONNECT request
T-CONNECT confirmation
TS provider
TCR
T-CONNECT indication
T-CONNECT response
TCA
TSAPTSAP TSAPTSAP
c) Transfer phase
Calling side or called side
T-DATA request
TS user
d) Error notification
TSAP
b) TC establishment failure
T-CONNECT indication
TDT (EM=0) TDT (EM=0) TDT (EM=0)
TDT (EM=1)
TS provider
TS user TS user
T-CONNECT request
TS provider
TCR
T-CONNECT request
T-CONNECT request
TCA
Calling side or called side
T-DATA
indication
TS user
TSAP
TS userTS user TS provider
TBR
VI - 1
T-EXCEPTION indicationT-EXCEPTION indication
TSAPTSAP
3. Transport layer block format
Octet 1Octet 2Octet 3Octet 4Octet 5Octet 6Octet 7
Parameter (See
Length
TCR
(127 max.)
Length
TCA
(127 max.)
Note 1-1: Parameter for address extension Note 1-2: Parameter for TDT block
Octet 1
2 3
n
Length
TCC
(127 max.)
E0 0 0 0 0
Unused
IA5 digit ... 1 IA5 digit ... 2
IA5 digit ... n
80
Destination reference
information
Destination reference
information
DO
Extended address parameter type
Parameter length indicator
Transmission originator
source reference
information
Transmission source
reference information
C1H: Calling address C2H: Called address
Transmission source
reference information
Extended
Extended
Octet 1
XXXX
length negotiation
Cause of
clearing
Note 2
Notes 1-1 and 1-2) Only when requesting
0 0
and confirming optional transport
field
connection function
Parameter (See Notes 1-1 and 1-2) Only when requesting
0 0
and confirming optional transport
field
connection function
1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
2
0 0 0 0 X X X
3
1011: 2048 octets 1010: 1024 octets 1001: 512 octets 1000: 256 octets 0111: 128 octets
Parameter Used when sending optional additional clear information
Octet n
X
TBR
Note 2: Cause of clearing
00H .... Cause is not indicated
01H .... Terminal is occupied
02H .... Terminal has a problem
03H .... Address not known
Length
(127 max.)
Note 3: Cause of rejection
00H .... Cause is not indicated
01H .... Function is not implemented
02H .... Invalid block
03H .... Invalid parameter
70
Destination reference
information
VI - 2
Reject cause
Note 3
Parameter (Option)
Octet 1
Parameter field Used to indicate bit pattern of block rejected including the octet which is the cause of rejection
Octet 1
1 1 1 0 0 0 0 0
Parameter length
2
identifier
3
Additional clear
information
n
Parameter (Mandatory)
1 1 0 0 0 0 0 1
Parameter length
2
indicator
3
Rejected information
n
TDT
Length
02
X0000000 Data (TSDU)
F0
TSDU end indication, 1 indicates end of TSDU.
Note:
The value of "Trans mi ss io n or so urc e reference information " is t he loc al sys­tem’s parameter. Received transmission or source reference information is used as the "destination reference information" for a response to the block.
VI - 3
VII. B Channel, Layer 5
B channel, layer 5
CCITT recommendation T.62
1. Session control commands/responses
Command Response
Code Name Code Name

Session Set-up and release

0D CSS (Command Session
Start): Starts the session
09 CSE(Command Session
End): Ends the session
19 CSA(Command Session
Abort): Aborts the session
0E RSSP(Response Session Start
Positive): Acknowledges session start
0C RSSN(Response Session
Start Negative): Denies session start
0A RSEP(Response Session
End Positive): Acknowledges session end
1A RSAP(Response Session
Abort Positive): Acknowledges session abort

Information transfer

01 CSUI(Command Session
User Information): Session user information
02 RSUI(Response Session
User Information): Session user information

Management

15 CSCC(Command Session
Change Control): Controls session change
16 RSCCP(Response Session
Change Control Positive) : Acknowledges session change control
VII -1
2. Document control commands/responses
Command Response
Code Name Code Name

Document control

2D CDS(Command Document
Start): Starts the document
1D CDC(Command Document
Continue ): Continues the document
3D CDCL(Command Document
Capability List ): Lists document functions
29 CDE(Command Document
End): Ends the document
39 CDD(Command Document
Disuse): Discard the document
19 CDR(Command Document
Resynchoronize): Document resynchronization
3E RDCLP(Response Document
Capability List Positive): Acknowledges the document function list (Negative response for CDS or CDC uses RDGR)
2A RDEP(Response Document
End Positive): Acknowledges document end (Negative response uses RDPBN)
3A RDDP(Responce Document
Disuse Positive): Acknowledgement of CDD
1A RDRP(Response Document
Resynchronize Positiv e): Acknowledges document resynchronization

Information transter

01 CDUI(Command Document
User Information): Document user information

Error recovery

31 CDPB(Command Document
Page Boundary): Document page boundary
32 RDPBP(Response Document
Page Boundary Positive): Acknowledges document page boundary
30 RDPBN(Response Document
Page Boundary Negative): Denies document page boundary
00 RDGR(Response Document
General Reject): Denies general document use
VII - 2

Session operation mode

Caller (source) Party(sink) Session set-up
Start
CSS
RSSP/RSSN
Positive/negative
..........................................................................................................
Session data transfer
Data
Data
CSUI (document control) RSUI (document control)
Data Data
..........................................................................................................
Session control change
Change request
Change request
..........................................................................................................
Session end (Successful termination)
End
CSCC
RSCCP
CSCC
RSCCP
CSE
RSEP
Control positive
: : :
(ready to shift transmission state) *This side is now the source
Change request (The other side becomes the source)
End positive
..........................................................................................................
Session abort (Unsuccessful termination)
End
CSA
RSEP
End positive
VII -3

Document control procedure

Caller (source) Party (sink)
Document function check
Function List
CSUI/CDCL
RSUI/RDCLP
Positive
..........................................................................................................
Document parameters
Start
CSUI/CDS
..........................................................................................................
Document tramsfer
Document information Page information
Image (1)
Page boundary
Page information
Image (2)
CSUI/CDUI CSUI/CDUI
CSUI/CDUI
CSUI/CDPB
RSUI/RDPBP
CSUI/CDUI CSUI/CDUI
Page boundary positive
..........................................................................................................
Document end
End
CSUI/CDE
RSUI/RDEP
End positive
CSUI and RSUI are session commands/responses
VII - 4

Session and document coding rules

(1) Relationship between session control and document control
Text
Session:
Document:
CI LI Parameter field User information field
Session field (handed over to transport service: TSDU)
CI LI Parameter field User information field
Document field
Document command/response
Session command/response
(2) Examples of command/response structure
CI/RI (identifier) Header information to identify the
command/response LI (length indicator) Indicates the number of octets PGI (parameter group
Indicates which group of parameter identifiers identifier)
PI (parameter identifier) Indicates the information type PV (parameter value) Indicates the value of the parameter identified
by PI/PGI
When the value of LI is 0 (that is, when there is no parameter field)
CI LI
VII -5
When there is only on e parameter field consis t i ng of a PV of 1 oc ­tet in length; from the left, values of the LIs from the left are 3 and
1.
CI LI PI LI PV
When there are two different param eter fields, on e wi th a PV of 1 octet in length, and the other with a PV of 3 octets in length. From the left, the values of the LIs are 8, 1, and 3.
CI LI PI LI PV PI LI P V
One PGI containi ng two Pls
CILIPGILIPILIPVPILIP V
The simplest example for car rying user information
CI LI User information
When LI is undefined (80 or 82) 80 PV or user information 0000
XXXXH oct
82 XXXX PV or user information
VII - 6

Non standard capability identifier (NSC) determination

1. NSC organization
oct1 oct2 oct3 oct4 oct5 oct6 oct7 oct8 oct9 oct10 oct11 oct12 oct13
National
PGI LI
E8 (12+n) 00 01 25 00 01 00 00 00 00 00 00 00 NSC area
Country
code
option
Supplier code Version code
code
01: Japan
Others: Othe r countries
Fixed at 12 octet s
00: K83 D
01: K200 I 03: CF0, LH0, CG0 (US only), FX4
RI expansion
MAX n = 254 - 12
2. TTI in Japanese f or RI G4
oct13 oct14 oct15.....................................................
RI TTIF0LI
PV1 PV2 PV3 PV4 PVn-2 PVn-1 PVn
n
n=MAX 32 oct
Items in the above diagram are used only in CSS/RSSP
n
VII -7
3. NSC and contents of SUD and DP
The SUD addition and judgment conditions are determined by the NSC check result as follows:
NSC check result Contents of SUD and DP
Country code
Japan
00
Other coun-
tries
Other than 00
National
option code
01
00
Undefined Undefined
Supplier code Same in both
terminals
Different in both
terminals
Same in both
terminals
Different in both
terminals
CCITT
option
OO O
OO X
OX O
OX X
OX X
National
option(Japan)
Manufacuturer
option
The manufacturer option is referred to as PUPR (Private Use Pa­rameter RI) from K200 I. PUPR becomes effective only when bit 0 of oct 5 of the version code is 1.
VII - 8
Table 1-1: Session Layer Commands
CI/RI PGI PI PV
CSS
VII - 9
CSE
CSA CSCC 15
CSUI 01
Session reference
Non standard session capabilities
0D
Session user data (SUD)
09
19
Calling terminal
01
identifier Date and time
Window size
02
Service identifier
C1
Non standard capability identifier (NSC)
Session end parameter
Same as above
Note concerning the "A" column O: Must be transmitted
: Sent depending on condition
X: Not sent
0A
0B
0E
08
E8
RI TTI F0, L1, shift JIS after oct 13 Ext NSC
11
JIS 8, 24 digits
JIS 8, 14 digits 1 to 255 in binary
Telematic 01 Refer to Table 2-1
Refer to Table 3-1 No PI Fixed PV Length Case a: 6 oct Case b: 12 oct
Transport disconnect Terminal error Procedure error Undefined reason Same as above
A Transmit Condition B Receive Condition
PV is IA5
O
OO
01
O
01
O
Refer to Table 2-1
O
Japan code 2500 National option code
Supplier code 2500 Version code xx00
Note concerning the "B" column O: Must be received. If not received, an error is generated and DISC is output.
: Even if not received, the procedure is treated as normal.
X: When received, an error occurs and CSA is output.
00 or 01
00 - 01 - 25 - 00 xx - 00 - 00 - 00 00 - 00 - 00 - 00
O
xx = 00: K83D; 01: K200I; 02: CF0, LH0, CG0, FX4 oct15=PV1…PVn Shift JIS n=Max 32
01
O
09/05
O
PV contents are
O
arbitrary PV contents are
arbitrary PV value is ignored
O
Other than 0 indicates
O
an error *1
O
Refer to Table 3-1 Refer to ‘NSC and the contents of SUD and DP’ for details of the
checking method *2
Same as above
(RI Ext NSC) PV value is ignored
PV value is ignored
Notes:
*1: - If there is no session user data, response is made with RSSN (for basic teletex). *2: - The R: NSC save area must be separated from that of SSN (R: CSS/RSSP).
- If R:NSC exists for R: CDCL/RDCLP, it is treated in the same way as shown in ’NSC and the contents of SUD and DP’. If it does not exist, it is treated in the same way as SSN.
VII - 10
Table 1-2: Session Layer Responses
CI/RI PGI PI PV
RSSP
VII - 11
Session reference
Non standard session capabilities
0E
Session user data (SUD)
Called terminal identifier
01
Date and time
Window size
02
Service identifier
Session request function
C1
Non standard capability identifier (NSC)
JIS 8, 24 digits
09
JIS 8, 14 digits
0B
1 to 255 in binary
0E
Telematic 01
08
Transmit request b1=1
10
Refer to Table 2-1 Refer to Table 3-1 O
No PI Fixed PV length Case a : 6 oct
E8
Case b : 12 oct
RI PI=F0H
TTI
Ext NSC
Japan code 00 National option 00 or 01 Supplier code 2500 Version code xx00 O
F0, LI, shift JIS after oct 13
A Transmit Condition B Receive Condition
PV is IA5
O
OO
01
O
01
O
01 (When there is a
document to send) Refer to Table 2-1
00. 01. 25. 00 xx. 00. 00. 00
00. 00. 00. 00 xx = 00: K83D 01: K200I 02: CF0, LH0, CG0, FX4 oct 15=PV1…PVn Shift JIS n=Max 32
PV contents are
O
arbitrary PV contents are arbitrary PV value is ignored
O
Other than 0 indicates
O
an error
O*1Refer to Table 3-1
Refer to ‘NSC and the contents of SUD and DP’ for details of the checking method
*2
Same as above
(RI Ext NSC)
CI/RI PGI PI PV
RSSN
VII - 12
RSEP 0A RSAP 1A RSCCP 16 RSUI
Session reference
Non standard session
0C
capability
Session user data (SUD)
02
01 Cal led terminal
identifier Date and time
02 Window size
Service identifier
Reason
C1 Refer to T ab le 2-1
Session function
request Note concerning the "A" column O: Must be transmitted
: Sent depending on condition
X: Not sent
090BJIS 8, 24 digits
JIS 8, 14 digits
1 to 255 in binary
0E
Telematic 01
08
Refer to (DD/CDR/RDPBN)
32
(Refer to Table 3-1)
Transmit request b1=1
10
Note concerning the "B" column O: Must be received. If not received, an error is generated and DISC is output.
: Even if not received, the procedure is treated as normal.
X: When received, an error occurs and CSA is output.
Notes:
*1: - If there is no session user data, response is made with CSE (for basic teletex). *2: - The R: NSC save area must be separated from that of SSN (R: CSS/RSSP).
- If R:NSC exists for R: CDCL/RDCLP, it is treated in the same way as shown in ’NSC and the contents of SUD and DP’. If it does not exist, it is treated in the same way as SSN.
A Transmit Condition B Receive Condition
OOPV contents are
O Sends back contents
of CSS 01
O
01
O
00
O
O
Refer to Table 2-1
01 (Where there is a
document to send)
arbitrary PV contents are arbitrary PV value is ignored
O
Other than 0 indicates
O
an error PV value is ignored
O
(Refer to Table 3-1)
Table 1-3: Document Layer Commands
CI/RI PGI PI PV
VII - 13
CDS
CDC
CDE
CDR
2D
Session user data (SUD) Document linking
1D
Session user data (SUD)
29
19
Document reference number
Document type
C1
Called terminal identifier Calling terminal identifier
21
Date and time 0B JIS 8, 14 digits Document reference number Checkpoint reference number Document reference number (current)
C1
Checkpoint reference number
Reason
JIS 8, decimal 3 digits
29
01: Operator 02: Control
30
03: Monitor Refer to Tabl e 2-1 Refer to Tabl e 3-4 JIS 8, 24 digits
09
JIS 8, 24 digits
0A
JIS 8, decimal 3 digits
29
JIS 8, decimal 3 digits
2A
JIS 8, decimal 3 digits
29
Refer to Tabl e 2-1 Refer to Tabl e 3-4
JIS 8, decimal 3 digits
2A
03: Sequence 05: Terminal
32
06: Procedure 00: No reason X
A Transmit Condition B Receive Condition
Fixed at 001 (except in batch transmission)
O
In batch transmission, increments (+1) from 001 Default = Normal
X
document Refer to Table 2-1
O
CDC is not used When receiving,
X
001∼999
O
(Number of transmitted pages) CDR is not used
PV value is not checked
O
X
Refer to Table 3-4
O
process as a received CDS
Refer to Table 3-4
O
When receiving, RDDP or CSA
returned
CI/RI PGI PI PV
VII - 14
CDD
CDPB
CDCL
CDUI
39
31
Session user data (SUD)
3D
Document
01
profile
Reason
Checkpoint reference number
C1
Non standard capability identifier (NSC)
A0
Note concerning the "A" column O: Must be transmitted
: Sent depending on condition
X: Not sent
2A
E8
03: Sequence 05: Terminal
32
06: Procedure 00: No reason
JIS 8, decimal 3 digits
Refer to Tabl e 2-1
Same as CSS/RSSP (except RI Ext NSC)
Refer to Tabl e 2-1
Note concerning the "B" column O: Must be received. If not received, an error is generated and DISC is output.
: Even if not received, the procedure is treated as normal.
X: When received, an error occurs and CSA is output.
Notes:
*1: - CDCL is not always received.
- CDCL without session data may be received not to negotiate for the presentation function, but to negotiate other functions (timer, memory, etc.).
*2: - The R: NSC save area must be separated from that of SSN (R: CSS/RSSP).
- If R:NSC exists for R: CDCL/RDCLP, it is treated in the same way as shown in ’NSC and the contents of SUD and DP’. If it does not exist, it is treated in the same way as SSN.
A Transmit Condition B Receive Condition
CDR is not used
X
001∼999
O
(Number of transmitted pages) Refer to Table 2-1
O
Same as left
O
When receiving, RDDP or CSA
returned
O
*1
Refer to Table 3-2 *2
Table 1-4: Document Layer Responses
CI/RI PGI PI PV
RDEP
2A
RDRP 1A
RDDR 3A
RDPBP 32 Checkpoint
VII - 15
RDPBN
RDCLP *1
RDGR
30
Session user data (SUD)
3E
00
Checkpoint
reference number
reference number
Receive capability
limit
Reason
C1 Refer to Table 2-1
Non standard
capability
identifier (NSC)
Returned
parameters Note concerning the "A" column
O: Must be transmitted
: Sent depending on condition
X: Not sent
JIS 8, decimal 3 digits
2A
JIS 8, decimal 3 digits
2A
00: OK to continue 01: NG to continue
2E
03: Sequence 05: Terminal
32
06: Procedure 00: No reason
Same as CSS/RSSP (except RI Ext NSC)
E8
Pattern up to error byte
31
A Transmit Condition B Receive Condition
001∼009
O
(Number of transmitted pages) Output when
receiving CDR Output when
receiving CDD 001∼009
O
(Number of transmitted pages)
OO
03. 05. 06. 00
O
Refer to Table 2-1
O
Same as left
O
Note concerning the "B" column O: Must be received. If not received, an error is generated and CSA is output.
: Even if not received, the procedure is treated as normal.
X: When received, an error occurs and CSA is output.
O
X
X
O
S: CSA is returned
*2
Refer to Table 3-3 *3
D
Notes:
*1: - Must be always sent when CDCL is received, and must be always received when CDCL is sent. *2: - RDCLP without session user data may be received. *3: - The R: NSC save area must be separated from that of SSN (R: CSS/RSSP).
- If R:NSC exists for R: CDCL/RDCLP, it is treated in the same way as shown in ’NSC and the contents of SUD and DP’. If it does not exist, it is treated in the same way as SSN.
VII - 16
Table 2-1: Session User Data (SUD) Adaptive Method
Presentation capability de­scriptor (A4) Note : Code for document profile (A2)
VII - 17
PGI PGI PGI PGI PI LI PV
Non basic terminal characteristics (A2)
Page size (A2)
Sequence (30)
Sequence (30)
Sequence (30)
Sequence (30)
Sequence (30)
Sequence (30)
Basic terminal characteristics (80) Interchange format (81) 01 00 Must be attached TIF.0 Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81)
01 02 Must be attached
02 26C0
02 36CE
02 2F6C
02 432C
02 2F6D
02 432C
02 36CE
02 4D80
02 2E23
02 4125
02 27D8
02 3390
Adaptive Condition
CSS RSSP CDCL RDCLP CDS
XX
XX
XX
XX
XX
XXX
◊◊∆
♦♦∆
◊◊∆
◊◊∆
X
X
◊◊
Remarks
Facsimile
ISO A4 (default)
JIS B4 (old B4)
JIS B4 (Japanese equivalent of Legal size)
ISO A3 RDCLP : With external printer
ISO B4
ISO North American A4 (Letter size)
Adaptive Condition
◊◊∆
◊◊∆ ♦♦∆
♦♦∆ ♦♦∆
XXOOO
Presentation capability de­scriptor (A4) Note : Code for document profile (A2)
(Continued)
VII - 18
PGI PGI PGI PGI PI LI PV
Non basic terminal characteristics (A2)
(Continued)
Extended presentation characteristics (E4)
National application profile (EA)
Coding characteristics (A3) Presentation characteristics (A4)
Extended coding attributes (E0)
Extended presentation attributes (E1) Refer to Table 2-2
: (CCITT option) Attached when existing as self mode. : (Japan option) Attached when possible as national option in Japan and exists as self mode.
O : (Manufacturer option) Attached when possible as manufacturer option and exists as self mode. : Attached as a logical product (common capability) of S: CDCL (self function) and R: RDCLP (other party function). X : Not attached.
Compression (80)
Transfer picture element density (8B) Transfer picture element density (8B) Transfer picture element density (8B) Integer (02)
Integer (02) Subscan line density (C0)
01 01 X X X X X
01 02 X X X X X
01 03 X X
01 04 X X 01 02 X X
01 03 X X 01 01 X X
CSS RSSP CDCL RDCLP CDS
Note:
*1: Page size for RDCLP is determined by the paper feed cassette (except North American Letter size [NA_Lt]).
Remarks
Compression
240 dpi
300 dpi (K200I Europe)
400 dpi
MH (National option) MR (National option) 100 dpi
(National option) Manufacturer option (PUPR)
depending on R: NSC condition
Table 2-2: Adaptive Method of Extended Application Profile
PGI PGI PGI PGI PGI PI LI PV
Extend­ed appli­caiton profile (EA) PUPR
VII - 19
Document application (E0)
Commu­nication applica­tion (E1)
Confidential application (C0/E0)
Password applic ation (C1/E1) *1 Document content attribute (E2) ♦5 Transfer application (E0) Function (C0)
Origina­tor(C2/E2)
Sequence (30)
Sequence (30)
Function (C0)
Password (C1)02Octet String XXXXO (File ID: D7000) Password (C1) Density T ype (C1)
Password (C1) 02 Octet String X X O X O Dial ID (C0)
Dial No. (C1) Subaddress No. (C2) Dial ID (C0)
Dial No. (C1) Subaddress No. (C2)
Adaptive Condition Remarks
CSS/
CDCL RDCLP CDS DP
RSSP
00/01/02
01
Octet String
02
00/01
01
00/01/02/04
01
01/02
01
Numeric String 30 to 39 and blank space
<16
01/02
01
Numeric String 30 to 39 and blank space
<16
XXOXX
1
X
XXXXO
XXOXX
XXXXO
XXXXO
2
O
O
XX
underlined items are
(The
default settings.)
00: None 01: Pending 02: OK 00/FF: No password 00/FF: No password
00: mm system 01: inch system (*1)
00: None 01: Pending 02: OK 00/FF: No password 01: Analog 02: Digital
PS 04: D•CS
08: D
(*2)
01: Analog 02: Digital
PS 04: D•CS
08: D
(*2)
PGI PGI PGI PGI PGI PI LI PV
Extend­ed appli­caiton profile (EA) PUPR
Commu­nication applica­tion (E1)
(Cont’d)
Destina­tion (E3)
Sequence (30)
Sequence
Dial ID (C0)
Dial No. (C1) Subaddress No. (C2) Dial ID (C0)
(30)
(Cont’d)
Dial No. (C1) Subaddress No. (C2)
VII - 20
Sequence (30)
Dial ID (C0)
Dial No. (C1) Subaddress No. (C2)
Sequence
Dial ID (C0)
(30)
Dial No. (C1) Subaddress No.
(C2) Transfer application (E0) (Continued)
Password applic ation
Specific 2-stage
attribute (C4)
Password (C1) (E1) (*2)
RI extended terminal capability (E2)
Device characteristics (E1)
Engine type(C0) 01 00/01 X O O X X
mm/inch
conversion
function
(C1)
Adaptive Condition Remarks
(The underlined items are
default settings.)
01: Analog 02: Digital
PS 04: D•CS
08: D
01
01/02
CSS/
CDCL RDCLP CDS DP
RSSP
XXXXO
Numeric String 30 to 39 and blank space
<16
01
01/02
XXXXO
(*2)
01: Analog 02: Digital
PS 04: D•CS
08: D
Numeric String 30 to 39 and blank space
<16
01
01/02
XXXXO
(*2)
01: Analog 02: Digital
PS 04: D•CS
08: D
Numeric String 30 to 39 and blank space
<16
01
01/02
XXXXO
(*2)
01: Analog 02: Digital
PS 04: D•CS
08: D
Numeric String 30 to 39 and blank space
<16
01
00, 01 02, 03
XXXXO
(*2)
00: No request 01: Reserved 02: 2-stage transfer 03: 2-stage transfer report
(Net ID: K200)
02
Octet String
X
3O♦4
O
XX
00/FF: No password (*3)
00: mm 01: inch (*4) 00: No function 01: Function provided (*4)
01
00/01
XOOXX
Notes
*1 to *4 are employed from K200I. From K200I 1 is used as File ID, and 2 as General Net ID. If two different codes are used for a PGI/PI, eg. document content attribute on page VIII-19,if the first code is used, this will be referred to as case a. Also, if the second code is used, this will be referred to as case b.
1: In case a, Net ID is stored at ♦1 (that is, the same value as at ♦3 is stored).
2: In case a, polling ID (Net ID or File ID) is stored at ♦2 (that is, the value at ♦4 determines the Net ID).
3: In case b, Net ID is stored at ♦3 ( ♦1 is unused).
4: In case b, Net ID is stored at ♦4 (or at ♦2 when using File ID).
5: In case a, ♦5 is not attached.
VII - 21
Table 3-1: CSS/RSSP Session User Data (SUD) Check Method
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc. Presentation capabilities descriptor (A4)
Other than the above
Basic terminal characteristics (80) Interchange format (81)
Other than the above lgnored
Octet string 02 (FAX) must exist in octet.
>1
Octet string 00 (TIF.0) must exist in octet.
>1
lgnored
Note:
*1: If presentation capabilities descriptor (A4), basic terminal characteristics (80), or interchange format (81) do not exist,
a) response is made by RSSN for CSS. b) response is made by CSA for RSSP.•
VII - 22
- If 02 (FAX) or 00 (TIF.0) do not exist, a) response is made by RSSP for CSS. b) response is made by CSA for RSSP.
Table 3-2: CDCL Session User Data (SUD) Check Method
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc. Presentation capabilities descriptor (A4)
VII - 23
Non basic terminal characteri­stics (A2)
Page size (A2)
Coding attributes (A3) Compression (80) Presentation attributes (A4) Transfer picture
Sequence (30) Fixed measurement
Sequence (30) Fixed measurement
Sequence (30) Fixed measurement
Basic terminal characteristecs (80)
Interchange format (81)
ratio (80) Variab le measurement ratio (81)
ratio (80) Variab le measurement ratio (81)
ratio (80) Variab le measurement ratio (81)
element density (8B) Transfer picture element density (8B) Transfer picture element density (8B)
Octet string If no basic terminal characteristics (80) exists, the
>1
Octet string If no interchange format (81) exists, the following
>1
Integer If the format is correct, PV is ignored.
>1
Integer
>1
Integer
>1
Integer
>1
Integer
>1
Integer
>1 >1 Integer If the format is correct, PV is ignored.
Integer If the format is correct, PV is ignored.
1
Integer
1
Integer
1
following items are ignored. If 02 (FAX) does not exist in the octet, the following items are ignored.
items are ignored. If 00 (TIF.0) does not exist in the octet, the following items are ignored.
Fixed measurement ratio is possible for the paper length.
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc. Presentation capabilities descriptor (A4)
(Continued)
Extended terminal attributes (E4)
Extended applicaiton profile (EA)
Extended coding attributes (E0)
Extended presentation attributes (E1)
Document application (E0) Communi­cation application (E1)
Password application (C1/E1) Password application (E1)
Integer (02) 1 Integer If the format is correct, PV is ignored. Integer (02)
Subscan line density (C0) Subscan line density (C0) Password (C1)
*1 Password (C1)
*2
Integer
1
Integer If the format is correct, PV is ignored.
1
Integer
1
Octet string Ignored if NSC country code and supplier code
2
Octet string
2
coincide. Case a : *1 is interpreted as Net ID Case b : *2 is used as Net ID (or, if *2 is not received, a method which uses *1 as Net ID is also possible)
VII - 24
Other than the above
lgnored
Note:
1. If two different codes are used for PGI/PI, (e.g., password application), if the first code is used, this will be referred to as case
a. Also, if the second code is used, this will be referred to as case b.
*2. When there is a format error, CSA is used for the response.
Case a …R : NSC=RI and NSC oct5 bit0 = "0" (K83D) Case b… R : NSC=RI and NSC oct5 bit0 ="1" (K200I)
Table 3-3: RDCLP Session User Data (SUD) Check Method
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc. Presentation capabilities descriptor (A4)
VII - 25
Non basic terminal characteristics (A2)
Page size (A2)
Coding attributes (A3) Compression (80) Presentation attributes (A4) Transfer picture
Sequence (30) Fixed measurement
Sequence (30) Fixed measurement
Sequence (30) Fixed measurement
Basic terminal characteristics (80)
Interchange format (81)
ratio (80) Variable measurement ratio (81)
ratio (80) Variable measurement ratio (81)
ratio (80) Variable measurement ratio (81)
element density (8B) Transfer picture element density (8B) Transfer picture element density (8B)
Octet string If no basic terminal characteristics (80) exists, the
>1
Octet string If no interchange format (81) exists, the following
>1
Integer Stored if A4 or B4 exists.
>1
Integer
>1
Integer
>1
Integer
>1
Integer
>1
Integer
>1 >1 Integer If the format is correct, PV is ignored.
Integer Stored if 01 : 200 dpi or 04 : 400 dpi exists.
1
Integer
1
Integer
1
following items are ignored. If 02 (FAX) does not exist in the octet, the following items are ignored.
items are ignored. If 00 (TIF.0) does not exist in the octet, the following items are ignored.
Otherwise, if format is correct, PV is ignored. Fixed measurement ratio is possible for the paper length.
Otherwise, if the format is correct, PV is ignored.
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc.
Extended terminal attributes (E4)
Extended application profile (EA)
VII - 26
Other than the above
Extended coding attributes (E0)
Extended presentation attributes (E1)
Document application (E0)
Communi­cation application (E1)
RI extended terminal attributes (E2)
Confidential application (C0/E0) Password application (CI/E1) Transfer application (E0)
Password application (E1)
Device characteristics (E1)
Integer (02) 1 Integer Stored if Japan national option is specified for NSC Integer (02)
Subscan line density (C0) Subscan line density (C0) Function (C0)
Password (C1) *1 2
Function (C0) 1 Integer Password (C1) Password (C1) *2
Engine type (C0) 1 Integer If this does not exist, the default is used (inch type) mm/inch conversion function (C1)
Integer
1
Integer Stored if Japan national option is specified for NSC
1
Integer
1
Integer Stored if manufacturer option is specified for NSC
1
Octet string
Octet string
2
Octet string
2
Integer
1
and 00 : 200 dpi or 01 : 100 dpi exists. Otherwise, PV is ignored.
and 00 : 200 dpi or 01 : 100 dpi exists. Otherwise, PV is ignored.
and a parameter for this exists. Otherwise, PV is ignored if the format is correct. Case a : *1 is used as polling ID (Net ID or File ID). Case b : *2 is used as Net ID, or *1 is used as File ID. (or, if *2 is not received, a method which uses *1 as the polling ID (Net ID or File ID) is also possible)
Ignored
Notes:
1. If two different codes are used for a PGI/PI (e.g., password application), if the first code is used, this will be referred to as case
a. Also, if the second code is used, this will be referred to as case b.
2. If there is a format error, CSA is used for the response.
- Case a … R : NSC= RI and NSC oct5 bit0 = "0" (K83D)
- Case b … R : NSC= RI and NSC oct5 bit0 = "1" (K200I)
Table 3-4: CDS Session User Data (SUD) Check Method
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc. Presentation capabilities descriptor (A4)
VII - 27
Non basic terminal characteri­stics (A2)
Page size (A2)
Coding attributes (A3) Compression (80)
Presentaion attributes (A4) Transfer picture element
Sequence (30)
Sequence (30)
Sequence (30)
Basic terminal characteristics (80)
Interchange format (81)
Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81) Fixed measurement ratio (80) Variab le measurement ratio (81)
density (8B) Transfer picture element density (8B) Transfer picture element density (8B)
Octet string If no standard terminal characteristics (80) exists,
1
Octet string If no interchange format (81) exists, response is by
1
Integer When it exists, it must coincide with self terminal
>1
Integer
>1
Integer
>1
Integer
>1
Integer
>1
Integer
>1
Integer If it exists, it must be 01 (compression); otherwise,
1
Integer If it exists, it must be 01 (compression); otherwise,
1
Integer
1
Integer
1
response is by CSA. Except when 02 (FAX) exists in the octet, response is by CSA.
CSA. Except when 00 (TIF.0) exists in the octet, response is by CSA.
capability. For other than the above condition, response is by CSA. Fixed measurement ratio is possible for the paper length.
response is by CSA.
response is by CSA.
PGI PGI PGI PGI PI LI PV Attribute Check Condition, etc.
Extended terminal attributes (E4)
Extended coding attributes (E0)
Extended presentation attributes (E1)
Integer (02) 1 Integer If the format is correct, PV is ignored. Integer (02)
Subscan line density (C0) Subscan line density (C0)
Integer
1
Integer If the format is correct, PV is ignored.
1
Integer
1
Other than the above
Note:
If there is a format error, response is by CSA.
VII - 28
Ignored
VIII. B Channel, Layers 6 & 7
VIII. B channel, layer 6.7
CCITT recommendations T. 73, T. 6
F A C DT TDT CSUI CDUI DLD PLD TU .. Data .. FCS F
1 2 3
1. DLD (Document Lay out Descriptor)....... Refer to Tables 1-1 and 2-1.
2. PLD (Page Layout Descriptor)........Refer to Tables 1-2 and 2-2.
3. TU (Text Unit)........Refer to Tables 1-3 and 2-3.
* Example: Sending 1 page in 3 blocks Block 1 : Image data
F A C DT TDT CSUI CDUI DLD PLD T U Image data FCS F
Block 2
F A C DT TDT CSUI CDUI Image data ............................ FCS F
Block 3
F A C DT TDT CSUI CDUI Image data......EOFB+PAD+EOC+EOC FCS F
Data (image data) MMR, MR, or MH coded data
EOFB (End Of Facsimile Block) EOL x 2 Format: 000000000001000000000001
PAD bits Used to fit the data length to octet unit or block size Format: Variable length string of zeroes
EOC (End Of Content) Indicates the end of an undefined length content Format: EOC (00H) LI (00H)
VIII - 1
Table 1-1. DLD (Document Layout Descriptor) Generation
Name PGI PI LI PV Description
Specific layout
descriptor
A2 03 -- : :=Sequence
00 : Document 01 : Page set
Layout
object type
02 01 00
02 : Page (default) 03 : Frame 04 : Block
Table 1-2. PLD (Page Layout Descriptor) Generation
Name PGI PI LI PV Description
Specific layout descriptor A2 Variable -- Sequence
Layout object type 02 01 02 02 (page)
Layout descriptor body 31 Variable -- Set
Dimensions A4 08 -- Sequence
Transfer width (fixed) 80 02 Integer
Transfer length(variable) 81 02 Integer
Presentation attributes A6 05 -- Set
Photographic attributes A1 03 -- Set
Picture element transfer
density
Extended presentation attributes E9 03 -- Set
Subscan line density C0 01 01 01=100 dpi
Extended application profile
(PUPR)
Extended sub-scan resolution C1 01 01 01=400 dpi
Smoothing C2 01 01
82 01 Integer
EA Variable Variable Set
A4=26C0H (9920 BMU) A3=36CEH (14030 BMU) B4=2F6CH (12140 BMU)
A4=36CEH (14030 BMU) A3=4D80H (19840 BMU) B4=432CH (17196 BMU) A5=26C0H (9920 BMU)
transmitted page is scanned
01=200 dpi 04=400 dpi (defalt=01)
01=Disabled
This is set to 01 when the
in halftone mode.
VIII - 2
Table 1-3. TU (Text Unit) Generation
Name
Text unit A3 80 -- Sequence
Content portion attributes 31 Variable -- Set
Extended coding type C0 01 Integer
Coding attributes (T.6) A2 Variabl e -- Set
Number of picture
elements per line
Number of
discarded picture
elements
Text infor matio n
(T.6 column)
Text information
(primitive)
: : : : : : : : : :
Text information
(primitive)
PGI
LI PV Description
PI
80 02 Integer
01
83
24 80 --
04 Variable
04 Variable
/02Integer
Image
data
Image
data
02=MH
(When not specified, MMR)
A4 A3 B4 200 dpi -- 0930H 0800H (2432) (2048) 400 dpi 0D80H1300H 1000H
(Not specified when A4 - 200 dpi) A4 A3 B4
200 dpi 25H 2FH 0CH 400 dpi 4AH 5EH 18H
(3456) (4864) (4096)
03=MR
(37) (47) (12) (74) (94) (24)
VIII - 3
Table 2-1. DLD (Document Layout Descriptor) Check
Name PGI PI LI PV
Specific layout descriptor A2 Variable SEQ
Layout object type 02 01 00
Layout descriptor body 31 Variable SET
Default value lists A7 Variable SEQ
Page attributes A2 Variable SET
Dimensions A1 V ariab le SEQ
Transfer width
(fixed)
Transfer length (fixed/variable)
Presentation
attributes
Photographic
attributes
Picture
element
transfer density
80 02 Integer
80
/
81
A3 Variable SET
A1 Variable SET
82 01 Integer
02 Integer
Nece-
ssity
Manda-
tory
Manda-
tory Sel-
ctive
Selec-
tive
Selec-
tive
Selectiv
e
Selec-
tive
Selec-
tive
Selec-
tive
Check condition
Error if not specified
Error if other than 00 (document)
If this exists, the two machines check values after this in the table.
If this exists, the two machines check values after this in the table. If this does not exist, the following defaults are used: Paper size = A4 (variab le) Picture element density = 200 x 200 dpi Compression method = MMR
If this exists, the two machines check values after this in the table.
If this exists, the following values are analyzed and DPA is modified.
A4 = 26C0H (9920 BMU) A3 = 36CEH (14030 BMU) B4 = 2F6CH (12140 BMU)
A4 = 36CEH (14030 BMU) A3 = 4D80H (19840 BMU) B4 = 432CH (17196 BMU) A5 = 26C0H (9920 BMU)
If this exists, the two machines check values after this in the table.
If this exists, the two machines check values after this in the table.
If this exists: 01= 200 dpi 04= 400 dpi Anything other than these values is treated as an error or DPA is modified depending on the value.
Any PGI or PI ot he r tha n th e ab ove is ignored.
VIII - 4
Table 2-2. PLD (Page Layout Descriptor) Check
Name PGI PI LI PV
Specific layout descriptor A2 Variable SEQ
Layout object type 02 01 02
Layout descriptor body 31 Variable SET
Dimension A4 Variable SEQ
Transfer width (fixed) 80 02 Integer
Transfer length
(fixed/variable)
Presentation attributes A6 Variable SET
Content type 42 01 01
Photographic
attributes
Pel direction 80 01 00
Line direction 81 01 03
Picture element transfer density
Extended presentation
attributes
Subscan line density C0 01 Integer
Extended application
profile (PUPR)
Extended sub-scan
resolution
Smoothing C2 01 01
80 81
A1 Variable SET
82 01 Integer
E9 Variable SET
EA Variable
C1 01 01 01=400 dpi
/
02 Integer
Variable
Any PGI or PI other than those in this table is ignored.
Error if other than 02 (document)
Mand-
Sets contents of DPA to CPA
atory
before checking the below listed items
If this exists, the two
Selec-
machines check values after
tive
this in the table If this exis ts, the foll owing
values are analyzed and CPA is modified.
Selective
Selective If this exists, error if other
This is set to 01 when the transmitted
A4=26C0H (9920 BMU) A3=36CEH (14030BMU) B4=2F6CH (12140BMU)
A4=36CEH (14030BMU) A3=4D80H (19840BMU) A5=26C0H (9920 BMU)
If this exists, the two
Selec-
machines check values after
tive
this in the table than 01=photographic
If this exists, the two
Selec-
machines check values after this in the table (towards the
tive
right)
Selec-
If this exists,error if other than 00=0°
tive
If this exists, error if other
Selec-
than 03=270° (downward
tive
direction) If this exists:
01=200 dpi, 04=400 dpi
Selec-
Any value other than these is treated as an error. Or,
tive
CPA is modified depending on the value.
If this exists, the two
Selec-
machines check values after
tive
this in the table If this exists:
00=No specification 01=100 dpi
Selec-
Any value other than these
tive
is treated as an error. Or, CPA is modified depending on the value.
Set
01=Disabled
page is scanned in halftone mode.
VIII - 5
Table 2-3. TU (Text Unit) Check
Name
Text unit A3 V ariab le SEQ
Content portion
attribute
Coding type 80 01 01
Extended coding
method
Coding
attributes
(T.6)
Number of
picture
elements per
line
Compression 82 01 01
Text information (T.6 constructor)
Text infor mation
(primitive)
: : : : : : : : : :
: : : : :
Text infor mation
(primitive)
Text information
(T.6, 1 column)
PGI
LI PV
PI
31 Variable SET
C0 01 Integer
A2 Variable SET
80 02 Integer
24 V ariable SEQ
04 Variable
04 Variable
14 V ariab le
34 Variable
Undefine
Undefine
Image
data
Image
data
d
d
Necess-
ity
Manda-
tory
Selec-
tive
Selec-
tive
Selec-
tive
Selec-
tive
Selec-
tive
Selec-
tive
Manda-
tory
Unneces
sary
Check condition
Error if does not exist
If this exists, the two machines check values after this in the table.
If this exists, error if other than 01=T.6
If this exists: 01=MMR 02=MH 03=MR Any value other than these is treated as an error. Or, CPA is modified depending on the value.
If this exists, the two machines check values after this in the table.
200 dpi -- 0930H 0800H 400 dpi 0D80H 1300H 1000H Error if the value does not coincide
with the contents of CPA If this exists, error except for
01=compression For a short sentence, text information
may not contain the T6 constructor and only one primitive may appear.
Error if exists
A4 A3 B4
(2432) (2048)
(3456) (4864) (4096)
Any PGI or PI ot he r tha n th e ab ove are ignore d.
VIII - 6
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