Chapter 5: Profiling And Operation; Sip Profile; Supported Sip Features - 3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual

C 5: P
HAPTER
All VCX V7111 Gateways have similar functionality except for the number of
channels (the VCX V7111 24 FXS and 2FXS support only FXS), and all versions
are referred to collectively in this document as the VCX V7111.
VCX V7111 FXS refers only to the 24FXS, 8FXS, 4FXS, and 2FXS Gateways.
VCX V7111 FXO refers only to 8FXO and 4FXO Gateways.

SIP Profile

Supported SIP Features

The VCX V7111 complies with RFC 3261 IETF standard.
The VCX V7111/SIP main features are:
Works with or without a proxy. When no proxy is specified an internal routing table is
used instead.
Fallback to internal routing table if communication with the proxy server fails.
Supports two redundant proxy servers. If main proxy fails, the VCX V7111 automatically
switches to the first redundant proxy.
Proxy and Registrar Authentication (handling 401 and 407 responses) using either Basic
or Digest (MD5) methods.
Proxy Registration, such as:
REGISTER sip:proxyname SIP/2.0
VIA: SIP/2.0/UDP 212.179.22.229;branch=z9hG4bRaC7AU234
From: <sip:101@sipgatewayname>;tag=1c29347
To: <sip:101@sipgatewayname>
Call-ID: 10453@212.179.22.229
Seq: 1 REGISTER
Expires: 3600
Contact: <sip:101@212.179.22.229;user=phone>;expires=3600
Content-Length: 0
Where the proxyname and sipgatewayname strings are defined in the VCX V7111 INI file
(or configured from the web).
By default the REGISTER request will be sent to the proxy IP address. It is possible to
change the registration address by configuring the REGISTRAR IP address.
3Com VCX V7111 VoIP SIP Gateways User Manual
ROFILING AND
O
PERATION
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