This document describes the AudioCodes Mediant™ 2000 SIP (Session Initialization Protocol)
gateway and the TP-1610 SIP cPCI board.
Information contained in this document is believed to be accurate and reliable at the time of printing.
However, due to ongoing product improvements and revisions, AudioCodes cannot guarantee
accuracy of printed material after the Date Published nor can it accept responsibility for errors or
omissions. Updates to this document and other documents can be viewed by registered Technical
Support customers at www.audiocodes.com under Support / Product Documentation.
2.1 General ...........................................................................................................................................19
2.2 The Mediant 2000 Chassis.............................................................................................................20
2.2.1 Power Supply ......................................................................................................................20
2.3 The TP-1610 Board ........................................................................................................................20
2.3.1 Board Hot-Swap Support ....................................................................................................21
5.10.1.1 IP Connectivity ........................................................................................................................... 71
Figure 5-30: Load a cmp File Screen ...............................................................................................................79
Figure 5-31: cmp File Successfully Loaded into the Mediant 2000 Notification...............................................79
Figure 5-32: Load an ini File Screen ................................................................................................................80
Figure 5-33: Load a CPT File Screen...............................................................................................................81
Figure 6-1: ini File Structure .............................................................................................................................88
Figure 6-2: SIP ini File Example .......................................................................................................................89
Figure 7-1: Call Progress Tone Types............................................................................................................136
Figure 7-2: Defining a Dial Tone Example .....................................................................................................136
Figure 8-1: ini File Example for TDM Tunneling (Originating Side)................................................................150
Figure 8-2: ini File Example for TDM Tunneling (Terminating Side)..............................................................150
Figure 11-1: Example of Entries in a Device ini file Regarding SNMP...........................................................181
Figure B-1: Main Screen.................................................................................................................................191
Figure K-12: VXML Script Example (continues on pages 261 to 265)...........................................................266
Version 4.4 9 July 2005
Mediant 2000 SIP
List of Tables
Table 2-1: Mediant 2000 Front View Component Descriptions........................................................................19
Table 2-2: Chassis LED Indicators ...................................................................................................................20
Table 2-3: Front and Upper View of the TP-1610 cPCI Board Component Descriptions ................................21
Table 2-4: Status LED Indicators......................................................................................................................23
Table 2-5: E1/T1 Trunk Status LED Indicators.................................................................................................23
Table 2-6: Ethernet LED Indicators ..................................................................................................................23
Table 2-7: cPCI LED Indicators ........................................................................................................................23
Table 2-8: Rear Panel with two 50-pin Connectors for 16 Trunks Component Descriptions...........................24
Table 2-9: Rear Panel with 8 RJ-48c Connectors for 8 Trunks Component Descriptions...............................25
Table 5-1: Number Manipulation Parameters ..................................................................................................46
Table 5-2: NPI/TON Values for ISDN ETSI......................................................................................................48
Table 5-3: Tel to IP Routing Table....................................................................................................................50
Table 5-4: IP to Trunk Group Routing Table ....................................................................................................52
Table 5-5: Trunk Group Table ..........................................................................................................................59
Table 8-1: Calling Name (Display)..................................................................................................................139
Table 8-2: Redirect Number ...........................................................................................................................139
Table 8-3: Summary of DTMF Configuration Parameters (continues on pages 145 to 146).........................144
MLQ, NetCoder, Stretto, TrunkPack, VoicePacketizer and VoIPerfect, are trademarks or
registered trademarks of AudioCodes Limited. All other products or trademarks are property of
their respective owners.
Customer Support
Customer technical support and service are provided by AudioCodes’ Distributors, Partners, and
Resellers from whom the product was purchased. For Customer support for products purchased
directly from AudioCodes, contact support@audiocodes.com
all cross-references are hyperlinked. Click on the page or section numbers
(shown in blue) to reach the individual cross-referenced item directly. To
return back to the point from where you accessed the cross-reference, press
the ALT and ← keys.
the TP-1610 SIP board.
.
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used. Only industry-
standard terms are used throughout this manual. Hexadecimal notation is indicated by 0x
• 384 Channels on 16 T1 spans with gateway-1 and gateway-2
1.2 SIP Overview
SIP is an application-layer control (signaling) protocol used on the Mediant 2000 for creating,
modifying, and terminating sessions with one or more participants. These sessions can include
Internet telephone calls, media announcements and conferences.
SIP invitations are used to create sessions and carry session descriptions that enable participants
to agree on a set of compatible media types. SIP uses elements called proxy servers to help
route requests to the user's current location, authenticate and authorize users for services,
implement provider call-routing policies and provide features to users.
SIP also provides a registration function that enables users to upload their current locations for
use by proxy servers. SIP, on the Mediant 2000, complies with the IETF (Internet Engineering
Task Force) RFC 3261 (refer to http://www.ietf.org
).
1.3 Mediant 2000 Features
This section provides a high-level overview of some of the many Mediant 2000 supported
features.
1.3.1 General Features
• Superior, high quality SIP PSTN gateway for Voice and fax over IP calls.
• Up to 16 E1/T1/J1 digital spans supporting various PRI and CAS protocols.
• Compliant with SIP (RFC 3261).
• Coders include: G.711, G.723.1, G.726, G.729A and NetCoder at 6.4 to 8.8 kbps, negotiable
per channel.
• T.38 fax with superior performance (handling a round-trip delay of up to nine seconds).
• Echo Canceler with up to 128 msec tail length.
• Silence suppression with Comfort Noise Generation.
• Web management for easy configuration and installation.
• Simple Network Management Protocol (SNMP) and Syslog support.
• Simple Network Time Protocol (SNTP) support, the time-of-day can be obtained from a
standard SNTP server.
1.3.2 Hardware Features
•Two 10/100 Base-TX Ethernet interface connections to the network, providing network
redundancy.
•Compact, rugged 19-inch rack mount unit, one U high (1.75" or 44.5 mm), with two
compactPCI
• Optional cPCI slot for third-party CPU board.
• TP-1610/H.323 hot-swap cPCI board.
• Optional dual redundant AC or a single DC power supply.
Version 4.4 15 July 2005
™
(cPCI) slots.
Mediant 2000 SIP
1.3.3 PSTN-to-SIP Interworking
The Mediant 2000 gateway performs interworking between ISDN and CAS via E1/T1/J1 digital
spans and SIP IETF signaling protocol. 16 E1, T1 or J1 spans are supported (480 channels) in a
two modules gateway.
The Mediant 2000 gateway supports various ISDN PRI protocols such as EuroISDN, North
American NI2, Lucent 4/5ESS, Nortel DMS100, Meridian 1 DMS100, Japan J1, as well as QSIG
(basic call). PRI support includes User Termination or Network Termination side. ISDN-PRI
protocols can be defined on an E1/T1 basis (i.e., different variants of PRI are allowed on different
E1/T1 spans).
In addition, it supports numerous variants of CAS protocols for E1 and T1 spans, including MFC
R2, E&M wink start, E&M immediate start, E&M delay dial/start, loop-start, and ground start. CAS
protocols can be defined on an E1/T1 basis (i.e., different variants of CAS are allowed on
different E1/T1 spans).
PSTN to SIP and SIP to PSTN Called number can be optionally modified according to rules that
are defined in gateway ini file.
1.3.3.1 Supported Interworking Features
• Definition and use of Trunk Groups for routing IPPSTN calls.
• B-channel negotiation for PRI spans.
• ISDN Non Facility Associated Signaling (NFAS).
• PRI to SIP interworking according to draft-ietf-sipping-qsig2sip-04.txt.
• PRI to SIP Interworking of Q.931 Display (Calling name) information element.
• PRI (NI-2) to SIP interworking of Calling Name using Facility IE in Setup and Facility
messages.
• Configuration of Numbering Plan and Type for IPISDN calls
• Interworking of PSTN to SIP release causes
• Interworking of ISDN redirect number to SIP diversion header (according to IETF draft-levy-
sip-diversion-05.txt).
• Optional change of redirect number to called number for ISDN IP calls.
• Interworking of ISDN calling line Presentation & Screening indicators using RPID header
<draft-ietf-sip-privacy-04.txt>.
•Interworking of Q.931 Called and Calling Number Type and Number Plan values using the
RPID header.
• Supports ISDN en-block or overlap dialing for incoming TelIP calls.
• Supports routing of IPTel calls to predefined trunk groups.
• Supports a configurable channel select mode per trunk group.
• Supports various number manipulation rules for IPTel and TelIP, called and calling
numbers.
•Option to configure ISDN Transfer Capability (per Gateway).
1.3.4 Supported SIP Features
The Mediant 2000 SIP main features are:
• Reliable User Datagram Protocol (UDP) transport, with retransmissions.
• T.38 real time fax (using SIP).
Note: If the remote side includes the fax maximum rate parameter in the SDP body of the
Invite message, the gateway returns the same rate in the response SDP.
• RFC 2833 Relay for Dual Tone Multi Frequency (DTMF) digits, including payload type
negotiation.
•DTMF out-of-band transfer using:
INFO method <draft-choudhuri-sip-info-digit-00.txt>
INFO method, compatible with Cisco gateways
NOTIFY method <draft-mahy-sipping-signaled-digits-01.txt>.DTMF out-of-band transfer
using INFO method (draft-choudhuri-sip-info-digit-00.txt)
• Can negotiate coder from a list of given coders.
This section provides detailed information on the Mediant 2000 hardware components, the
location and functionality of the LEDs, buttons and connectors on the front and rear panels.
2.1 General
TheMediant 2000gateway comprises the following hardware components:
• A 19-inch 1U high rack mount chassis (refer to Section
• A single compactPCI™ TP-1610 board (refer to Section
• A single TP-1610 Rear Transition Module (RTM) (refer to Section
• A single available cPCI slot for an optional third-party CPU board (refer to Section
page 25).
Figure
1 7
2-1 shows the front view of the Mediant 2000 media gateway.
Figure
2-1: Mediant 2000 Front View
3
2
5
6
2.2 on page 20).
2.3 on page 20).
2.4 on page 24).
4
11
8
6
9
2.5 on
10
2-1: Mediant 2000 Front View Component Descriptions
Table
Item # Label Component Description
1 FAULT Dual AC Power LED.
2 cPCI board locking screws.
3 cPCI latches.
4 TP-1610 cPCI board, 16-trunk configuration.
5 Status LED Indicators.
6 T1/E1 STATUS E1/T1 Trunk Status LED Indicators.
7 ETH Ethernet LED Indicators.
8 Reset button.
9 cPCI LED Indicators.
10 Power and Fan LEDs
11 An available cPCI slot for an optional third-party CPU board.
Version 4.4 19 July 2005
Mediant 2000 SIP
2.2 The Mediant 2000 Chassis
The Mediant 2000 chassis is an industrial platform, 19” wide, 1U high and 12” deep that houses
the TP-1610 board in its front cage, slot #1 (the lower slot) and the TP-1610 RTM in its rear cage,
slot #1 (the lower slot).
Slot # 2 in the Mediant 2000 chassis’ front and rear cages can optionally be used by customers
for a CPU board.
Refer to Table
Location Color Function
Right side of front panel Green
Right side of front panel Red
Left side of front panel Red
2-2 for detailed description of the chassis’ LED indicators.
Table
2-2: Chassis LED Indicators
The power is on.
Fan failure - indicates that any of the internal fans has significantly
reduced its speed or has frozen.
Power supply failure - indicates that one of the two AC redundant
power supplies is faulty or disconnected from the AC/mains outlet.
(This LED is only relevant for the dual AC power supply).
2.2.1 Power Supply
The Mediant 2000 power supply is available in three configuration options:
• Single universal 100-240 VAC 1 A max, 50-60 Hz.
• Dual-redundant 100-240 VAC 1.5 A max, 50-60 Hz.
• -48 VDC power supply suitable for field wiring applications.
2.3 The TP-1610 Board
The Mediant 2000 is populated by a single compactPCI™ board, the TP-1610 (shown in Figure
2-2). The TP-1610 is a high-density, hot-swappable, cPCI resource board with a capacity of up to
480 ports, supporting all necessary functions for voice, data and fax streaming over IP networks.
The TP-1610 is composed of one or two identical media gateways modules: Gateway-1 and
Gateway-2, each containing 240 DSP channels. These media gateways are fully independent,
each gateway having its own MAC (Media Access Control) and IP addresses and LED indicators.
The TP-1610 board is supplied with a rear I/O configuration in which both PSTN trunks and
Ethernet interface are located on a passive rear I/O module (for information on the RTM, refer to
Figure 2-2: Front and Upper View of the TP-1610 cPCI Board
1
5
2-3: Front and Upper View of the TP-1610 cPCI Board Component Descriptions
Table
Item # Label Component Description
1 Status LEDs
2 ETH Ethernet LEDs
3 Reset button
4 cPCI LEDs
5 cPCI Latch
6
2
3
7
4
6 T1 / E1 STATUS T1/E1 Trunk Status LEDs (for each of trunks 1 to 8)
7 T1 / E1 STATUS T1/E1 Trunk Status LEDs (for each of trunks 9 to 16)
2.3.1 Board Hot-Swap Support
The TP-1610 cPCI board is hot-swappable and can therefore be removed from a slot (and
inserted into a slot) while the Mediant 2000 is under power. It is recommended though that you
power down the chassis and read the notes below before replacing the components.
For details on removing/inserting the optional CPU board, refer to the directions accompanying it.
Electrical Component Sensitivity
Electronic components on printed circuit boards are extremely sensitive to static
electricity. Normal amounts of static electricity generated by clothing can damage
electronic equipment. To reduce the risk of damage due to electrostatic discharge when
installing or servicing electronic equipment, it is recommended that anti-static earthing
straps and mats be used.
Version 4.4 21 July 2005
Mediant 2000 SIP
Note 1: Before removing or inserting boards from / to the chassis, attach a wrist strap
for electrostatic discharge (ESD) and connect it to the rack frame using an
alligator clip.
Note 2: Do not set components down without protecting them with a static bag.
2.3.1.1 Removing Boards
To remove the TP-1610 board from the chassis, take these 3 steps:
1. Unfasten the screws on the plate of the board.
2. Press the red ejector buttons on the two black ejector/injector latches on both ends and wait
for the hot-swap blue LED to light, indicating that the board can be removed.
3. Pull on the two ejector/injector latches and ease out the board from the slot.
To remove the TP-1610 RTM from the chassis, take these 4 steps:
1. Remove the cables attached to the RTM.
2. Unfasten the screws on the brackets at both ends of the panel that secure the RTM to the
chassis.
3. Press the red ejector buttons on the two black ejector/injector latches on both ends.
4. Grasp the panel and ease the RTM board out of the slot.
2.3.1.2 Inserting Boards
To insert the TP-1610 board into the chassis, take these 6 steps:
1. Hold the board horizontally.
2. With the black ejector/injector latches in the open (pulled out) position, insert the board in the
slot, aligning the board with the grooves on each end.
3. Ease the board all the way into the slot until the ejector/injector latches touch the chassis.
The Blue hot-swap LED is lit.
4. Press the two black ejector/injector latches on both ends inward, toward the middle, until you
hear a click.
5. Wait for the hot-swap blue LED to turn off.
6. Fasten the screws on the front panel of the board to secure the board to the chassis and to
ensure that the board has a chassis earthing connection.
To insert the TP-1610 RTM into the chassis, take these 6 steps:
1. Hold the board horizontally.
2. With the black ejector/injector latches in the open (pulled out) position, insert the board in the
slot, aligning the board with the grooves on each end.
3. Ease the board all the way into the slot until the ejector/injector latches touch the chassis.
4. Press the two black ejector/injector latches on both ends inward, toward the middle until you
hear a click.
5. Fasten the screws on the front panel of the board to secure the board to the chassis and to
ensure that the board has a chassis earthing connection.
The functionality of the front panel LEDs for the TP-1610 is described in the following four tables
and illustrated in Figure
the number of channels.
Label LED Color LED Function
2-2 on page 21. Note that there is a choice of front panels according to
Table
2-4: Status LED Indicators
FAIL Red
ACT
Label LED Color Signal Description
T1/E1 Status 1 to 8
and
T1/E1 Status 9 to 16
Normally OFF; Red indicates gateway failure (fatal error)
Green
Yellow
Green
Red
Note: On the front panel 16 LEDs are provided for 16-span units and 8 LEDs are
provided for 1-span, 2-span, 4-span, and 8-span units. In the case of 1-span,
2-span and 4-span units, the extra LEDs are unused.
Gateway initialization sequence terminated OK
N/A
Table 2-5: E1/T1 Trunk Status LED Indicators
Trunk is synchronized (normal operation)
Loss due to any of the following 4 signals:
LOS
LFA
AIS
RAI
Table 2-6: Ethernet LED Indicators
Loss of Signal
Loss of Frame Alignment
Alarm Indication Signal (the Blue Alarm)
Remote Alarm Indication (the Yellow Alarm)
Bi-color
LED
Bi-color
LED
Label LED Color LED Function
LINK Green
ACT Yellow
Label LED Color LED Function
PWR Green
SWAP READY Blue
During correct Mediant 2000 operation, the ACT LED is lit green, the FAIL LED is off. Changing
of the FAIL LED to red indicates a failure.
Link all OK
Transmit / receive activity
Table 2-7: cPCI LED Indicators
Power is supplied to the board
The cPCI board can now be removed.
The cPCI board was inserted successfully.
For detailed information on the Swap-Ready LED, refer to Section
2.3.1 on page 21.
Version 4.4 23 July 2005
Mediant 2000 SIP
2.4 Rear Transition Module
The Mediant 2000 RTM includes a PSTN trunks and an Ethernet interfaces.
The Ethernet interface features dual 10/100 Base-TX, RJ-45 shielded connectors for (an active /
standby) redundancy scheme providing protection against the event of a failure.
The PSTN interface is provided with a choice of rear panels (1-span, 2-span, 4-span, 8-span or
16-span).
Rear panel with two 50-pin female Telco connectors (DDK 57AE-40500-21D) (shown in Figure
2-3) is required for a gateway equipped with up to 16 E1/T1 spans. Rear panel with RJ-48c
connectors (shown in Figure
spans. The physical difference between the 1-Span, 2-Span and 4-Span RTMs, and the 8-span
RTM is that the RJ-48c ports are depopulated correspondingly.
2-4) is required for a gateway equipped with 1, 2, 4, or 8 E1/T1
Figure
1
2-8: Rear Panel with two 50-pin Connectors for 16 Trunks Componen t Descriptions
The Mediant 2000 provides an optional second cPCI slot that can be optionally used for
customer’s CPU board. This CPU board can be used for general applications such as a
Gatekeeper, Softswitch, Application Server or other. The following CPU boards were tested for
compliancy with the Mediant 2000 chassis:
• Sun™: CP2080 + PMC-233 (Ramix™ disk on board) + Rear Transition Module (RTM).
• Intel™ ZT5515B-1A with 40GB on-board disk plus RTM (ZT4807).
Mediant 2000 SIP User’s Manual 3. Installing the Mediant 2000
3 Installing the Mediant 2000
This section describes the hardware installation procedures for the Mediant 2000. For information
on how to start using the gateway, refer to Section
Mediant 2000 connectors, LEDs and buttons, refer to Section
Caution Electrical Shock
The equipment must only be installed or serviced by qualified service personnel.
To install the Mediant 2000, take these 4 steps:
1. Unpack the Mediant 2000 (refer to Section 3.1 below).
4 on page 35. For detailed information on the
2 on page 19.
2. Check the package contents (refer to Section
3. Mount the Mediant 2000 (refer to Section
4. Cable the Mediant 2000 (refer to Section
After powering-up the Mediant 2000, the Ready and LAN LEDs on the front panel turn to green
(after a self-testing period of about 3 minutes). Any malfunction changes the Ready LED to red
(refer to Section
When you have completed the above relevant sections you are then ready to start configuring the
gateway (Section
2.3.2 on page 23 for details on the Mediant 2000 LEDs).
4 on page 35).
3.1 Unpacking
To unpack the Mediant 2000, take these 6 steps:
1. Open the carton and remove packing materials.
2. Remove the Mediant 2000 gateway from the carton.
3. Check that there is no equipment damage.
4. Check, retain and process any documents.
5. Notify AudioCodes or your local supplier of any damage or discrepancies.
6. Retain any diskettes or CDs.
3.2 below).
3.3 on page 28).
3.4 on page 30).
3.2 Package Contents
Ensure that in addition to the Mediant 2000, thepackage contains:
•For the dual AC power supply version two AC power cables are supplied; for the single AC
power supply version one AC power cable is supplied.
•For the DC power supply version, one connectorized DC power cable (crimp connection
type) and one DC adaptor (screw connection type) connected to the rear panel of the
Mediant 2000 are supplied; use only one type.
• CD (software and documentation).
• Small plastic bag containing (refer to Figure
Two brackets and four bracket-to-device screws for 19-inch rack installation option.
Four anti-slide bumpers for desktop / shelf installation option.
•The Mediant 2000 Fast Track Installation Guide.
Version 4.4 27 July 2005
3-1):
Mediant 2000 SIP
Figure 3-1: 19-inch Rack & Desktop Accessories
3.3 Mounting the Mediant 2000
The Mediant 2000 can be mounted on a desktop, or installed in a standard 19-inch rack. Refer to
Section
3.4 on page 30 for cabling the Mediant 2000.
3.3.1 Mounting the Mediant 2000 on a Desktop
No brackets are required. Optionally, attach the four (supplied) anti-slide bumpers to the base of
the Mediant 2000 and place it on the desktop in the position you require.
3.3.2 Installing the Mediant 2000 in a 19-inch Rack
Users can install the device in a standard 19-inch rack either by placing the device on a shelf
preinstalled in the rack (preferred method), or by attaching the device directly to the rack’s frame
via integral brackets.
Before rack mounting the chassis, attach the two (supplied) brackets to the front sides of the
device (refer to Figure
To attach the two front side brackets, take these 3 steps:
1. Remove the 2 screws nearest the front panel on either side of the device.
2. Align a bracket over 2 holes on one side (so that the bracket’s larger holes face front) and
with the 2 supplied replacement screws, screw in the bracket.
Mediant 2000 SIP User’s Manual 3. Installing the Mediant 2000
Figure 3-2: Mediant 2000 Front View with 19-inch Rack Mount Brack ets
Rack Mount Safety Instructions (UL)
When installing the chassis in a rack, be sure to implement the following Safety
instructions recommended by Underwriters Laboratories:
•Elevated Operating Ambient - If installed in a closed or multi-unit rack
assembly, the operating ambient temperature of the rack environment may be
greater than room ambient. Therefore, consideration should be given to
installing the equipment in an environment compatible with the maximum
ambient temperature (Tma) specified by the manufacturer.
•Reduced Air Flow - Installation of the equipment in a rack should be such that
the amount of air flow required for safe operation on the equipment is not
compromised.
•Mechanical Loading - Mounting of the equipment in the rack should be such
that a hazardous condition is not achieved due to uneven mechanical loading.
•Circuit Overloading - Consideration should be given to the connection of the
equipment to the supply circuit and the effect that overloading of the circuits
might have on overcurrent protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be used when addressing
this concern.
•Reliable Earthing - Reliable earthing of rack-mounted equipment should be
maintained. Particular attention should be given to supply connections other
than direct connections to the branch circuit (e.g., use of power strips.)
To attach the device to a 19-inch rack, take these 2 steps:
1. Position the device in your 19-inch rack and align the left-hand and right-hand bracket holes
to holes (of your choosing) in the vertical tracks of the 19-inch rack.
2. Use standard 19-inch rack bolts (not provided) to fasten the device to the frame of the rack.
AudioCodes recommends using two additional (not supplied) rear mounting brackets to provide
added support.
Note: Users assembling the rear brackets by themselves should note the following:
• The distance between the screws on each bracket is 26.5 mm.
• To attach the brackets, use 4-40 screws with a maximal box penetration length
of 3.5 mm.
To place the device on a 19-inch rack’s shelf, take these 2 steps:
1. Place the device on the preinstalled shelf.
Version 4.4 29 July 2005
Mediant 2000 SIP
2. You’re now recommended to take the optional steps of fastening the device to the frame of
the rack (as described above) while it is placed on the shelf, so preventing it from sliding
when inserting cables into connectors on the rear panel.
3.4 Cabling the Mediant 2000
Refer to Section 2 on page 19 for detailed information on the Mediant 2000 rear panel connectors
and LEDs.
Note that the Mediant 2000 is available in many configurations, i.e., AC or DC, in the 16-trunk, 8trunk, 4-trunk, 2-trunk or 1-trunk device. The 16-trunk dual AC (Figure
(Figure
3-4) configurations are illustrated here as representative products.