User Manual
FXO+FXS Gateway
Model: HTM Series
DBL Technology Co.,Ltd.
Http://www.dbltek.com/en
sales@dbltek.com
Support@dbltek.com
2009-12-15
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Contents
1. Product Introduction.......................................................... 4
1.1 General Information............................................................................................................ 4
1.2 Protocol...............................................................................................................................4
1.3 Hardware Specification.......................................................................................................5
1.4 Software Specification........................................................................................................5
1.5 List of the Package..............................................................................................................5
1.6 Appearance..........................................................................................................................5
1.7. Apply..................................................................................................................................6
2. Connection ...........................................................................................................................7
2.1. Interface Description:.........................................................................................................7
2.2. Indicator lights explanation:...............................................................................................8
2.3. Connection diagram:..........................................................................................................9
3. Configuration ....................................................................................................................10
3.1. Factory setting parameters:..............................................................................................10
3.2. Log on to the Gateway.....................................................................................................11
3.2.1. Get IP ............................................................................................................................11
3.2.2. Open browser and input IP............................................................................................11
3.3 Gateway Configuration.....................................................................................................15
3.3.1. User options ..................................................................................................................15
3.3.2. Network Configuration .................................................................................................17
3.3.3. Call Setting.................................................................................................................... 19
3.3.3.1. H.323..........................................................................................................................19
3.3.3.1.1 FXS Configuration...................................................................................................20
3.3.3.1.2. FXO Configuration .................................................................................................22
3.3.3.1.3 Configuration mode .................................................................................................23
3.3.3.1.4. Encryption...............................................................................................................24
3.3.3.2. H.323 Advanced Setting.............................................................................................24
3.3.3.3. SIP Protocol................................................................................................................26
3.3.3.3.1. FXS Configuration..................................................................................................26
3.3.3.3.2. FXO Configuration .................................................................................................30
3.3.3.3.3. Configuration Mode................................................................................................32
3.3.3.3.4. SIP Advanced Configuration...................................................................................32
3.3.3.3.5. Media Advanced Configuration..............................................................................33
3.3.3.4. Firewall Traversal.......................................................................................................35
3.3.3.4.1. H.323 Signaling NAT Traversal..............................................................................35
3.3.3.4.2. SIP Signaling NAT Traversal..................................................................................36
3.3.3.4.3. Media NAT Traversal..............................................................................................37
3.3.4. FXS Setting...................................................................................................................38
3.3.5. FXO Setting ..................................................................................................................39
3.3.6. Save Changes................................................................................................................40
3.3.7. Abandon changes ..........................................................................................................41
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4. Tools....................................................................................................................................41
4.1. Online Upgrade................................................................................................................41
4.2. Change Password.............................................................................................................42
4.3. Restore factory settings....................................................................................................42
4.4. Reboot the system............................................................................................................42
5. Dialing Rules......................................................................................................................43
5.1. Basic rules of grammar....................................................................................................43
5.2. With a limited number of digit dialing rules....................................................................44
6. Understand More........................................................... 44
6.1. Gateway Initialization.................................................................................................... ..44
6.2. Advanced Configuration ..................................................................................................45
6.3. Notes ................................................................................................................................45
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1. Product Introduction
1.1 General Information
HTM series VoIP gateways are the performance Gateway of FXO plus FXS, which developed by
Technology Co., Ltd. HTM Series VoIP gateways built-in H.323 and SIP protocols. The lines can
be configured into different numbers or used for Trunk Gateway. Highly reliable line detection
prevents the line hanging death in the largest tent. It can forward outside Caller ID Number under
the SIP protocol, which is an important function of PBX application. Super Echo Cancellation
Algorithm and Balanced Circuit make line echo minimum. Low price, Stable and performance are
pronoun of the HTM series products，it is the first choice of PXS Manufacturers, Call Center and
System Integrators.
HTM series mainly include HTM-112, HTM-222, and HTM-442.
1.2 Protocol
¾ TCP/IP V4 (IP V6 auto adapt)
¾ ITU-T H.323 V4 Standard
¾ H.2250 V4 Standard
¾ H.245 V7 Standard
¾ H.235 Standard（MD5，HMAC-SHA1）
¾ ITU-T G.711 Alaw/Ulaw, G.729A, G.729AB, and G.723.1 Voice Codec
¾ RFC1889 Real Time Data Transmission
¾ Proprietary Firewall-Pass-Through Technology
¾ SIP V2.0 Standard
¾ Simple Traversal of UDP over NAT (STUN)
¾ Web-base Management
¾ PPP over Ethernet (PPPOE)
¾ PPP Authentication Protocol (PAP)
¾ Internet Control Message Protocol (ICMP)
¾ TFTP Client
¾ Hyper T ext Transfer Protocol (HTTP)
¾ Dynamic Host Configuration Protocol (DHCP)
¾ Domain Name System (DNS)
¾ User account authentication using MD5
¾ Out-band DTMF Relay: RFC 2833 and SIP Info
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1.3 Hardware Specification
¾ ARM9E Processor
¾ DSP for voice codec and voice processing
¾ Two 10/100 Base T Ethernet ports with full compliant with IEEE 802.3
¾ LEDS for Ethernet port status
¾ Direct Connect Ethernet cable
¾ Four PSTN Channels’ Connection
1.4 Software Specification
¾ LINUX OS
¾ Built-in HTTP Web Server
¾ PPPOE Dial-up
¾ NAT Broadband Router Functions
¾ DHCP Client
¾ DHCP Server
¾ Firmware On-line upgrade
¾ PSTN Caller ID transmit
¾ Multiple Language Support
¾ Supported call divert
¾ Supported PSTN auto call out to PSTN
¾ Supported PSTN caller ID transparent to VoIP system in SIP protocol
¾ Supported RELAY encryption protocol
1.5 List of the Package
a) One Gateway main unit
b) One DC24V/500mA power adaptor
c) One Ethernet cable (2 M)
1.6 Appearance
1） LAN
Connect this port to an Ethernet Switch/Router, the Ethernet of a DSL modem, or other
network access equipment.
2） PC
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Connect a computer or other network device to this port. (Less than 100 mid-range)
3） Power (DC24V/500mA)
Connect the 24V/500mA Adapter provided to this power jack.
4） Reset
Reset switch, use to start the device or delete the configuration quickly.
1.7. Apply
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2. Connection
2.1. Interface Description:
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Diagram 2-1
Interface Name Connect to Notes
FXO 1-4 Connected to four telephone lines If exposed, note lightning
FXS 1-4
FXS output, connected to telephone
Length of line is below
than 300 meters
LAN Network input, connected to Network 10/100Base T
PC Network output, connected to computer 10/100Base T
DC24V Connected to power
RESET Restore the factory configuration Press(more than 10
seconds)will ok
2.2. Indicator lights explanation:
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Diagram
2-2
Name Explanation performance
Power Power LED Post-Long after start
RUN Working status lights Logged, flash 250 ms; login, slow flash 500
ms; upgrading, Continuous flashing 100
ms.
LAN LAN Network Lights Light after connect the Network, flash when
Data Transmission
PC PC Network Lights Light after connect the Network, flash when
Data Transmission
FXO 1-4 Telephone status lights Light after Machine state is mentioned
FXS 1-4 Line status lights Light when put up telephone
2.3. Connection diagram:
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Diagram 2-3
HTM series have a LAN port and a PC port. Please connect as follows:
1. Open the package, there are a Gateway, a power, and a cable;
2. Take out of Ethernet cable and connect to the PC;
3. The PC supports Network share, connect to the computer or lower switch;
4. FXS is connected to normal telephone, FXO is connected to line PSTN.
Make transformer output terminal.
3. Configuration
3.1. Factory setting parameters:
Parameter Default setting Explanation
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Username admin
Password admin Please remember the password
after change
LAN Network Setting DHCP
PC Network Setting Bridge mode
LAN IP *00(Chinese)
*01(English)
Press “*00” or “*01” get IP
address
LAN IP Setting *03 Such as *03192*168*1*2#
Restore factory *11983185922 After input password and hear
“Toot”, then success, you just
to pull power and restart the
Gateway.
3.2. Logon to the Gateway
3.2.1. Get IP
A) Make sure that there is DHCP sever: In accordance with connection diagram 2-3，
connect the HTM_xxx and plug power , check the RUN light flash or not. About the
RUN light quick flashes 10 seconds, plug one telephone into anyone FXS port and
press *00, telephone will report IP address in Chinese; Press *01, then will report in
English.
B) Without DHCP sever in the Network: Plug one telephone into anyone FXS port and
press *03+IP address, such as “*03192*168*1*2#”， indicates that IP temporary
address is 192.168.1.2. If you want to know how setting is successful, just to press
*00 or *01 and hear the IP again. Notice that the temporary IP is the same as the
PC-segment and not conflict with other Network setting. The same PC-segment
means the first three sections the number of IP must consistent, such as 192.168.1.3
and 192.168.1.5 are the same segment, 192.168.1.3 and 192.168.2.4 are not.
C) HTM series’ PC port has fixed a LAN IP address in default setting, it is 192.168.8.1,
and you can visit HTM_xxx series’ gateways through this port;
3.2.2. Open browser and input IP
After get IP or set a segment IP, open the browser (IE), and input IP on the Address Field.
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If the connection is correct, the Web Browser will prompt you to enter the “User name” and
“Password” as shown below.
Input the username and password, enter state page, as following figure:
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State of HTM-112
State of HTM-222
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State of HTM-442
Sequence number: The Gateway factory serial number;
Software version number: HTM series’ software version. This parameters is identified by the
system automatically, users can change by upgrading the Gateway;
Hardware model: Its line configuration can be identified by system software;
Registration status of FXS (1-4): When normal registration, shows LOGIN, or shows LOGOUT;
Registration status of FXO (1-4): When normal registration, shows LOGIN, or shows
LOGOUT;
LAN port: Shows the LAN IP;
LAN’s Hardware address: LAN’s MAC address;
PC port: Shows the PC IP;
PPPOE: Shows the status of PPPOE, Disabled or enabled;
Default route: The Gateway use;
Domain Name Server: The DNS Server of the Gateway.
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3.3 Gateway Configuration
Click “Configure”, enter interface, and start to configure:
3.3.1. User options
A) Language
Enter the language page, you can configure it. If the current language is Chinese and you
want it in English, choose “English” on top of webpage, then the webpage will changed to
English at soon; but the page will still in old one when you reboot the devices or logon again;
Also you can configure it with “Language option” in the upper right corner. As figure, click
“English” and save this changed, devices will show English page when it reboot;
B) Time Zone
According to special place to configure, device use Network Time Protocol obey the
information of time and date on the server, the lag will change automatically. For example:
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the Pacific Standard Time is GMT-8, while Pacific daytime is GMT-7.
Time Zone shows the place where users are, only fill it correctly, CND and billing
information can show the right time.
C) Time Server
Server address that the Gateway get Network time by Internet. The default is: pool.npt.org.
D) Auto Provision
Choose “Enable” and fill the server IP, if service provider do not support the service, then
choose “Disable”, which make setting start-up speed fast.
E) Remote Control
Input *20# and initiate requests by Terminals device, doing this can control the remote device.
Remote control server is supported by service provider, default port is 1920, logo terminals
by SN. The address and password are the same.
As indicated in figure, fill 202.155.200.154, pick the phone and press *20#, then hear a long
tone, shows succeed. Open http://202.155.200.154:8086
, and you will see the connected
Gateway model and serial number, click “serial number”, you can configure it.
F) Tone Mode
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It is dialing tone and ring back tone, and so on. You can choose different tone according to
different countries.
G) China Phone Code Matching
Can match all the China phone code and make sure the fastest dial time.
H) Reboot Time
The Gateway will reboot within the specified time, in order to clean the equipment cache, and
make sure the device running normally.
3.3.2. Network Configuration
When you need to change the way of Network connection, you can choose “Network
Configuration” and start to configure.
Access network has 3 kinds, get IP address automatically (DHCP)、Hand Set、and PPPOE. When
choose getting IP address automatically, you just to click “DHCP”, do not need to fill
parameters.
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When choose Hand Set, click “standard IP” and fill the IP address, mask and Gateway address.
When use standard IP, you should fill in “Main DNS” server-address to get Domain Name
Service, getting this address you can consult your Internet access service providers.
When need to use PPOE, click it, and input the Username and password.
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When use PPOE, need to enable Gateway routing, so that the PC that connected to the
Gateway can connect to the Internet correctly. Change the PC Bridge Mode into Standard IP,
configure as follows:
PC port enables standard IP, the mask 2555.2555.2555.0, after enable DHCP, the computer that
connected to the PC port can get arbitrary IP in the range of start address and end address.
Notes: The PC IP could not exist in the same segment with the LAN, in case of conflict.
3.3.3. Call Setting
3.3.3.1. H.323
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HTM has PSTN and FXO mode, which can be chosen in the FXO Mode pattern:
PSTN: In this mode, HTM series gateway’s FXO ports will work like a PSTN by Pass port; you
can choose PSTN phone or VOIP channel through star commands *12 or *21 to switch
between normal telephone and VOIP.
FXO: In this mode, HTM series gateway’s FXO port will work with FXO port state;
3.3.3.1.1 FXS Configuration
Click “FXS Setting”, expand the page, configure all the parameters:
1. Choose the terminal mode H.323
2. Fill login information: Server address, Gatekeeper address, telephone number, H.323 ID. If
need to fill certification information, please click “Enable Authentication”, and fill the
certification account and password.
HTM-112
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HTM-222
HTM_442
3. As indicated in Figure, when choose H.323 protocol, you should choose “H.323 Terminal”.
When several lines use the same number, choose “Single server mode”, when each line choose
different numbers, choose “By wiring”. When choose “By wiring”, each line can login to
different servers.
A) H.323 telephone number
Composed by a group of decimal number, use to certain the number in the Network. For
example, 5551234 is a effective number, input this number in the bank. When login with
telephone number, fill it; when login with number, you will hear dial-tone, then dial again.
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B) H.323 ID
A mode of account certification, users can fill according to the service provider.
C) Gatekeeper address
Use to find right Gatekeeper, fill the IP: 192.168.2.1 or domain: gk yourisp.com. If your port
is not the standard (1719, 1720), you can add the special port in the back of the IP or domain,
for example: login with 7300: 192.168.2.1:7300 or gk yourisp.com:7300.
Notes: Any character of the parameters should be filled with ASCII.
D) Use authentication
Click “Enable authentication”, fill the bank in the corresponding option.
3.3.3.1.2. FXO Configuration
Click “FXO Configuration”, expand the page, configuration ways and parameters please
refers to FXS Configuration.
HTM-112
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HTM-222
HTM-442
3.3.3.1.3 Configuration mode
When choose FXO, the configuration mode of FXS VOIP channel: 1) Single configure; 2)
Configure by line; 3) Configure by group
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A) Single Configure: User can make several VOIP channel share the same configuration.
B) Configure by line: Every VOIP channel can be supported service by different providers,
also login 2 or 4 telephone numbers on the same server, each number is bundled with
corresponding VOIP channel.
C) Configure by group: In this mode, each group can bundled one or several lines, each line
can exist in different groups. That is each line could login on 4 servers.
Notes: The special settings of 3 configuration mode refer to FXS configuration
3.3.3.1.4. Encryption
The Gateway is compatible of encryption of VOS and AVS, if need password, please enable
it.
A) VOS Signaling Encryption: Only make encryption on signaling.
B) VOS Signaling and Media Encryption: Make encryption on the signaling and media.
C) AVS Signaling Encryption: Only make encryption on signaling.
D) AVS Signaling and Media Encryption: Only make encryption on signaling.
Notes: The 4 encryption modes only effective on VOS or AVS users, if you use other platform,
you could use Firewall-penetrating technology Relay Agent by DBL. Special
details .please refer to Firewall-penetrating.
3.3.3.2. H.323 Advanced Setting
HTM Gateway’s advanced option, correspond “Advanced” and “Media”. Click “Advanced”,
the page as following:
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A) RAS Port
RAS is communications protocol of Terminal and Gatekeeper, and state information of
transferring login information, login information, broadband, and the relationship of the 2
H.323. This option can designate the UDP of this protocol, can be used by the router's port
mapping.
B) Call signaling port (Q.931)
H.225-Q931 is call-control protocol of H.323, use to transfer the call-setting and uninstall
information between the 2 H.323. This option can designate the terminal that receive the
calling from Q.931 port, can be used by the router's port mapping.
C) Media Control Port (H.245 Port)
H.245 is media control port of H.323. This option can designate the Terminal that receive
the calling from port connected to H.245, can be used by the router's port mapping.
D) Quick Connect
Use to check and solve compatibility problems. If uncertain, do not choose this option.
E) Registration Mode
Use to compatible different PBX, do not need to configure under normal circumstances.
F) DTMF Signaling
By using DTMF, the telephone transfer phone-signal to call clearinghouse by audio tape.
That is to say, two different frequencies of sound are combined into 16 kind of tone.
Telecommunications or telecom service hotline like 1860 identifies these special sounds by
DSP, which use to certain the dial-number. DTMF has 2 styles: Inband and Outband.
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1) Inband DTMF
This style makes the special dial-tone together with talk-tone and transfer out without any
treatment. So Inband only has one way to set DTMF signaling.
2) Outband DTMF
This style uses special methods and transfers the dial-tone to certain the correctness. The
special methods are the called protocol, such as RFC2833.
G) QOS Signaling
QOS is network quality of service and ability of higher priority service that network
supports, including dedicated broadband、 control and delay jitter、 packet loss rate
improvement and so on. This option can label for QOS which is designated by call
signaling packets, in order to improve the network quality of service.
3.3.3.3. SIP Protocol
SIP (Session Initiation Protocol) is identified by IETF, use to create, change and release the
session of one or several participants. These sessions are like Internet Multimedia Conference, IP
phone or Multimedia Distribution. The session participants could communicate by Multicast,
Mesh Unicast, or mixture of the two.
If use SIP protocol, choose SIP Terminal, and enter SIP configuration page.
3.3.3.3.1. FXS Configuration
Click “Call Setting” and enter, the FXS Configuration corresponds with FXS interface, and
FXO Configuration corresponds with FXO interface.
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HTM-112
HTM-222
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HTM-442
Click FXS Configuration, expand the configuration interface, and set all the parameter of the
HTM_442. Two kinds of VOIP Channel formats: 1) By wiring; 2) Single-server mode. The default
is “By wiring”, as following figure:
In this mode, there are more advance settings of VOIP Channel. At first, the four VOIP
channels can be supported service by different providers. Secondly, you could login four different
numbers by one provider, make one of numbers bundle with one VOIP channel.
A) Telephone number
Use to fill numbers of this line. This number indicates that called is the only parameter
identification.
B) SIP Proxy
Use to fill address of SIP Proxy. If your SIP Proxy is special port (is not the default 5060),
you can notes in the back of IP Proxy or Domain. Such as: 192.168.2.1:5070 or
tester.com.cn:5070.
C) SIP Registration Server
Use to register account for the Gateway, and fill the IP or Domain of SIP Registration Server.
If your server is special port (is not the default 5060), you can notes in the back of IP Proxy
or Domain. Such as: 192.168.2.1:5070 or tester.com.cn:5070.
D) Outbound Proxy
Exist in the firewall/NAT. It is used to make signaling and stream can penetrate the firewall.
E) Ownership of the domain
Use to manage the Domain Management Host of SIP protocol.
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F) Certification ID
Use to fill the certification account that the Gateway logins on the SIP registration server.
G) Password
Use to fill the certification password when the Gateway logins on the SIP registration server.
H) Display Name
When you call your friend John, then his phone will show you call.
I) Backup Server
Use to register backup, when user have a Backup registration server, then can choose this
option. If the Backup registration server is enable, while the main server is failure
unexpectedly, the Gateway will register to the Backup server automatically.
Other lines configuration is the same.
If want to configure the four VOIP channel the same, you could choose “Single-server mode”,
as follows:
Specific parameters configuration please refers to “By wiring”.
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3.3.3.3.2. FXO Configuration
Click FXO Configuration, open the interface, setting mode is the same as FXS. When
VOIP inbound, it will adapter to PSTN; if PSTN inbound, then adapters to VOIP.
HTM-112
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HTM-222
HTM-442
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3.3.3.3.3. Configuration Mode
When choose FXO, the configuration mode of FXS VOIP channel: 1) Single configure; 2)
Configure by line; 3) Configure by group
A) Single Configure: User can make several VOIP channel share the same configuration.
B) Configure by line: Every VOIP channel can be supported service by different providers,
also login 2 or 4 telephone numbers on the same server, each number is bundled with
corresponding VOIP channel.
C) Configure by group: In this mode, each group can bundled one or several lines, each line
can exist in different groups. That is each line could login on 4 servers.
Notes: The special settings of 3 configuration mode refer to FXS configuration
3.3.3.3.4. SIP Advanced Configuration
SIP advanced option, correspond “Advanced” and “Media”. Click “Advanced” and “Media”,
the page as following:
A) Signaling Port
SIP local port is the local UDP port, use to communicate with SIP proxy or other SIP users.
B) NAT Keep
Use to keep the port when NAT communicate with SIP signaling, its unit is seconds.
C) DTMF Signaling
By using DTMF, the telephone transfer phone-signal to call clearinghouse by audio tape.
That is to say, two different frequencies of sound are combined into 16 kind of tone.
Telecommunications or telecom service hotline like 1860 identifies these special sounds by
DSP, which use to certain the dial-number. DTMF has 2 styles: Inband and Outband.
1) Inband DTMF
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This style makes the special dial-tone together with talk-tone and transfer out without any
treatment. So Inband only has one way to set DTMF signaling.
2) Outband DTMF
This style uses special methods and transfers the dial-tone to certain the correctness. The
special methods are the called protocol, such as RFC2833.
D) QOS Signaling
QOS is network quality of service and ability of higher priority service that network
supports, including dedicated broadband、 control and delay jitter、 packet loss rate
improvement and so on. This option can label for QOS which is designated by call
signaling packets, in order to improve the network quality of service.
E) Signaling Encryption
a ) None: Not encrypted.
b) RC4: This is a variable key length stream encryption algorithm clusters, its S-box is
random, generally 256 bytes.
c) Fast: a long delay for high-speed networks, TCP Congestion Control Protocol，require
server-side support.
d) VOS: For VOS users.
e) AVS: For AVS users.
f) N2C: For N2C users.
g) ECM: For ECM users.
h) ET263: For ET263 users.
F) NAT Signaling Penetration.
Special configurations please refer to firewall.
3.3.3.3.5. Media Advanced Configuration
Media Advanced Configuration Aimed at the gateway RTP media stream part of the
advanced configuration options, click “Media” in the “call s ett ing”.
A) KTP Port (range)
Use to designate the UDP of Real-Time Media Transfer Protocol (RTP), used with the
router’s port mapping.
Notes: The terminal use several pairs of RTP, its value is the port range, such as
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(5500-5520).
B) RTP Packet Length
The default time length of each wet packet is 20ms. Use to designate the size of
media-packet, the unit is sampling time ms.
C) Jitter delay processing mode
Use to designate Jitter delay buffer algorithm model. Adaptive mode is the best, other
modes are used for test, please do not use in the practical action.
D) Media Encryption
a) None: No t encrypted.
b) RC4: This is a variable key length stream encryption algorithm clusters, its S-box is
random, generally 256 bytes.
c) ET263: For ET263 users.
E) Media QOS
QOS is network quality of service and ability of higher priority service that network
supports, including dedicated broadband、 control and delay jitter、 packet loss rate
improvement and so on. This option can label for QOS which is designated by call
signaling packets, in order to improve the network quality of service.
F) Speech coding and sequencing
【√】indicate that coding is availab le, UP and DOWN on the currently selected voice
compression coding to adjust priorities.
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3.3.3.4. Firewall Traversal
In the advanced configuration of call settings, signal and media each has firewall
configuration.
3.3.3.4.1. H.323 Signaling NAT Traversal
There are four styles as follows:
A） None
Select None to turn off this feature.
B) Nat Citron
Citron is a dedicated firewall penetration agreement for GNUGK.
C) Port Transparent/DMZ
Port Transparent refers that put network port of the LAN into computer or inside of the
LAN. The actual servers allow external users enjoy the servers of internal server(FTP、
HTTP、Te ln et ) .
Port Transparent includes the Gateway address and response server address. Gateway is
communications equipment that connect two different networks, response to the server is
standard service equipment that perform ECHO protocol.
D）Relay proxy
Relay proxy is a proprietary NAT traversal technology. It includes relay proxy server
address, port, username, and password.
Relay proxy makes encryption on the Gateway’s communication, this function need the
support of DBL. technology.
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3.3.3.4.2. SIP Signaling NAT Traversal
SIP Signaling NAT Traversal has 3 kinds:
A) None
Select None to disable this feature.
B) STUN （RFC 3489）
STUN (Simple Traversal of UDP (User Datagram Protocol) through NATS (Network
Address Translators)) is a network protocol allowing a client behind a NAT (or multiple
NATS) to find out its public address, the type of NAT it is behind and the internet-side port
associated by the NAT with a particular local port.
Select STUN (RFC 3489) to use a STUN server for Signaling NAT Traversal. Enter the IP
Address or the domain name of the STUN server to be used.
C) Relay Proxy
Relay proxy is a proprietary NAT traversal technology. Please consult your service
provider for more information. It includes relay proxy server address, port, username, and
password.
Relay proxy makes encryption on the Gateway’s communication, this function need the
support of DBL. technology.
Currently, the following 3 kinds of packaging mechanism are supported.
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3.3.3.4.3. Media NAT Traversal
Similar to Signaling NAT Traversal, this feature allows media packets (RTP) to be routed
properly in various network environments.
A）NONE
Select None to disable this feature.
B) Port Transparent/DMZ
Port Transparent refers that put network port of the LAN into computer or inside of the
LAN. The actual servers allow external users enjoy the servers of internal server(FTP、
HTTP、Telnet).It contains Gateway address and the responding to the server's address.
Gateway is communications equipment that connect two different networks, response to the
server is standard service equipment that perform ECHO protocol.
C）STUN(RFC3489)
STUN (Simple Traversal of UDP (User Datagram Protocol) through NATS (Network
Address Translators)) is a network protocol allowing a client behind a NAT (or multiple
NATS) to find out its public address, the type of NAT it is behind and the internet-side port
associated by the NAT with a particular local port.
Select STUN (RFC 3489) to use a STUN server for Signaling NAT Traversal. Enter the IP
Address or the domain name of the STUN server to be used.
D） Relay Proxy
Relay proxy is a proprietary NAT traversal technology. Please consult your service
provider for more information.
Currently, the following 3 kinds of packaging mechanism are supported:
¾ Mode 1: The media uses UDP packets and (or) encrypt with multiple UDP port;
¾ Mode 2: The media uses UDP packets and (or) encrypt with single UDP port;
¾ Mode 3: The media uses TCP packets and (or) encrypt (UDP over TCP).
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3.3.4. FXS Setting
HTM-112
HTM-222
HTM-442
Dialing rules: see the dialing rules
Hotline: dial number when pull the phone
Key Hold: in the state of “Enable call”, you can stop talking by pressing “*42”
Key Transfer: Enable and press *41, then input telephone number, you can achieve
Call transfer.
Call Hold: Enable it.
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Call prequel: Enable call transfer
Net off escape: After enable it, when the Net off or fail to login VOIP, FXS mentioned
Machine will put up PSTN outline.
Use of billing: you can bill all the lines by using DBL technology billing software.
Notes: Every line should be set separately.
3.3.5. FXO Setting
FXO Setting make users get practical function, its real is making calls adapter to
responding number, and reduce calling time. What is more, routing setting also support
password protection of “PSTN call IP” and “IP call PSTN”, but only authorized persons can
use. Please do not fill when you need not these functions.
1. VOIP call the Gateway adapter to the standard phone, fill “Hotline number” in the “call
PSTN adapter number”.
a) As indicated in Figure, when IP calls HTM_442, the Gateway will dial 88290211 directly,
this function is very useful for the “Hotline” service.
If the password needed when VOIP calls PSTN, then fill the password in the “dial PSTN
certification password”.
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b) As indicated in figure, when IP calls HTM_442, HTM_442 will give beep, only users input
the password (1234) correctly can you get PSTN dial-tone and dial.
2. PSTN calls adapters to VOIP special number, fill the adapter number in the
“call VOIP adapter number”.
a) As indicated in Figure, when PSTN calls, the phone will ring firstly in the Auto-Answer time,
then dial VOIP 3306 terminal, then the two phones ring at the same time, when answer, HTM_442
connected, the other phone stop ring. This function make persons who roam around the world can
answer phone everywhere.
Dial VOIP certification password: if need password when PSTN calls VOIP, then fill the password
in the “dial VOIP certification password”.
b) As indicated in Figure, when PSTN calls HTM_442, HTM_442 will give beep, only users input
the password (1234) correctly can you get VOIP dial-tone and dial.
Notes: The configuration of HTM-222 and HTM-442 is the same as HTM-112.
3.3.6. Save Changes
When you finish settings, click “save change” save all the settings.
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3.3.7. Abandon changes
If your new settings are not saved, you can clean all the unsaved new parameters.
4. Tools
4.1. Online Upgrade
Page shows current version information, input upgrade address, click start, wait after
upgrade and start again. When the page shows “Upgrade successful”, click “OK”.
Notes: Please keep in touch with the company’s technology support, in case that get
the latest information and upgrade address.
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4.2. Change Password
Include “Ordinary user-level” (user) and “Administrator Class” (admin), input the new
password two times, click “change” is ok.
4.3. Restore factory settings
If you make sure that clean all configurations, click “OK”, wait start again. If not, click
“Cancel”, back to current page.
Notes: All the users’ personal configuration include new changed password will be
cleaned.
You also finish these by pressing “RESET” in a long time.
4.4. Reboot the system
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If you are sue to reboot the system, click “OK”, if not, then click “Cancel”, back
to current page. Point the “RESET” gently with Small needle-like objects, then HTM_
442 will reboot.
Notes: Press the “RESET” will lead HTM_442 restore factory settings, all the
parameters that users configure will be cleaned.
5. Dialing Rules
Dialing rules make users configure number rules flexible, its expressions are:
Prefix: Action | Prefix: Action
Prefix is in front of the called number. “:” is Actions associated with Fu. “|”is
Separator, separates different prefix. Matching sequence is longest match.
For example: the Gateway is connected to extension line, fill “0755:-0755+9,|
07551:-0755” in PSTN, which indicates that dial 0755 Gateway, deleted (-0755)
dial “9” to get outside line, then dial the remaining numbers after 0.5 seconds. If
Dial 07551, which indicates that you dial inside number, the Gateway will dial the
extension number.
5.1. Basic rules of grammar
1. Rules can be separated by “|”, such as “00:-00|0:-0+86|:+86755“
2. Rules are matched by Sit-to-right, when encounter appropriate one, end the match
immediately, or continue next one.
3. Syntax rules is “AA: -aa+bb”，such as “0:-0+86”，“AA” is the matching numbers, in the
back of the colon is the corresponding concrete operation. If succeed, minus “aa” and “bb”,
if not, continue next one. If the back of colon without operation, such as“00:”, do not make
any operation and exit. If in front of the colon without string, such as “:+86755”, do operation.
4. Dialing rules have no range, its syntax rule is “[A-B]A:-aa+bb” or “A[A-B]:-aa+bb”. For
example: The range of 2 to 8 is that: “[2-8]:-aa+bb”or13 to 15 is “1[3-5]:-aa+bb”.
Such as:
1. Rules: “0:|:0755”.
a. Input“02083185711”，output“02083185711”；
b. Input“83185700”，output“075583185700”.
2. Rules: “00:-00|0”-0+86|:+86755“.
a. Input“008522343318”，output“8522343318”；
b. Input“02083185711”，output“862083185711”；
c. Input“83185700”，output“8675583185700”.
3. Rules: “00:|0:-0+086|:+0086755”.
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a. Input“008522343318”，output“008522343318”；
b. Input“02083185711”，output“00862083185711”；
c. Input“83185700”，output“008675583185700”.
4. Rules：“0:|1 [3-9]:+0|[2-8]:+0755|:+0755”.
a. Input“076322343318”，output“076322343318”；
b. Input“13044557766”，output“013044557766”；
or“13644557766”，output“013644557766”
c. Input“23185700”，output“075523185700”.
Or“73185700”，output“075573185700”
5.2. With a limited number of digit dialing rules
If you want to do restriction on every phone number, the dialing number of HT-3040 is
configured as “AAXXXXXXX:-aa+bb”，AAXXXXXX is the matched number and its length.
Other numbers are instead of “X” or “x” except of “AA”; In the back of colon is the
corresponding concrete operation of this number.
The configurations as following:
Like the above 3. “00:|0:-0+0086|:+0086755”.
Change like this “00:|0:-0+0086|[1-8]xxxxxxx:+0086755”.
The length is 8 if you dial the number that the beginning are 1 to 8, the Gateway will dial the
number automatically add “0086755”. Or:
“0:|13:+0|:+0755”
Then add “0”in front of mobile number, and“0755”in front of city telephone number.
Change like this “0:|13 [0-9] xxxxxxx:+0755”
This rule is like above, but the length of mobile number is limited 11.
As indicated above, the length of city telephone number is limited 8. 13[0-9] xxxxxxxx and [1-8]
xxxxxxx indict 130xxxxxxxx to 139xxxxxxxx and 1xxxxxxx to 8xxxxxxxx.
Notes: After using the median number of definitions, the length of number is longer than the
definition, then the superfluous numbers will be discarded, for example:
“0:|13[0-9]xxxxxxxx:+0|[1-8]xxxxxxx:+0755”
The number is 075588990011.
6. Understand More
6.1. Gateway Initialization
When forget the password, users can press (more than 10 seconds) RESET or input
*11983185922, restore factory configuration.
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6.2. Advanced Configuration
There are many configuration option in the advanced configuration, such as Agent
Services, Speech Coding sequence and so on, if you familiar with our product, you can
configure directly, if not, please view our detailed description, or search our technology
support: support@at338.com
6.3. Notes
a) When use HTM_442, please notice that outside whether overhead line or not, take
measures of lightning (purchase Lightning All, or put Lightning Terminal on the Wire frame).
b) HTM_442 has a certain degree of heat, please ventilation and do not cover flammable
liquids.
c) HTM_442 has line detection, if line is not connected well, then break when you dial
the Gateway.
d) HTM_442 has fat switch polarity detection function, which can prevent line hanging
death and improve the Gateway’s time to hang up.
e) When device is upgrading, please notice that absolutely you can not turn off the
power, or, the device will scrap!
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