Introduction
This document explains "How to Add/Modify the User-Agent SIP header in the SIP Profiles ?" . Sometimes SIP header Modification is required in a Service provider network where the Device rejects an unknown header and expects optional header value or parameter.
Problem description
When we register the Cisco Router as SIP Gateway, the Provider will see the Router's Registered name as "User-Agent: Cisco-SIPGateway/IOS-12.x" in the SIP header. Is it possible to Rename the SIP User-Agent Name ?
Sample SIP INVITE message with the User-Agent name ( field is highlighted in bold):
*Mar 1 00:34:45.515: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYE sip:9000@172.16.13.87:5060 SIP/2.0
Via: SIP/2.0/UDP 172.16.184.83:5060;branch=z9hG4bK1E1E51
From: <sip:8000@172.16.184.83>;tag=85E9C7C8-A4C
To: <sip:9000@172.16.13.87>;tag=1EDC10-2436
Date: Tue, 28 Feb 2006 23:44:38 GMT
Call-ID: D110EA36-2BE211D6-801CEF21-DD62106B@172.16.13.87
User-Agent: Cisco-SIPGateway/IOS-12.x
Max-Forwards: 70
Timestamp: 1141170279
CSeq: 103 BYE
Reason: Q.850;cause=16
Content-Length: 0 *Mar 1 00:34:45.535: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 172.16.184.83:5060;branch=z9hG4bK1E1E51
From: <sip:8000@172.16.184.83>;tag=85E9C7C8-A4C
To: <sip:9000@172.16.13.87>;tag=1EDC10-2436
Date: Fri, 01 Mar 2002 00:34:45 GMT
Call-ID: D110EA36-2BE211D6-801CEF21-DD62106B@172.16.13.87
Server: Cisco-SIPGateway/IOS-12.x
Timestamp: 1141170279
CSeq: 103 BYE
Reason: Q.850;cause=16
Content-Length: 0 |
| |
Solution
Yes, It is possible to Rename the default SIP User-Agent name by Modifying the User Agent in SIP Header using Sip profile.
Configuration To Modify the User Agent SIP header
The following configuration modifies the User Agent - SIP header “Cisco-SIPGateway/IOS-12.x” to “Cisco-SIP-Gateway”
Message: INVITE
Action: Modify the User-Agent SIP header
Rules:
voice class sip-profiles 100
request INVITE sip-header User-Agent modify “Cisco-SIPGateway/IOS-12.x” “Cisco-SIP-Gateway”
Configuration Setps
voice service voip
media flow-around
allow-connections sip to sip
sip
sip-profiles 100 voice class sip-profiles 100
request INVITE sip-header User-Agent modify “Cisco-SIPGateway/IOS-12.x” “Cisco-SIP-Gateway” |
Configuration To Add the User Agent SIP header
The following configuration Adds the User Agent SIP header “User-Agent: CiscoSystems-SIP-GW-UA"
Message: 200 Response
Action: Add the User-Agent SIP header
Rules:
voice class sip-profiles 100
response 200 sip-header User-Agent add "User-Agent: CiscoSystems-SIP-GW-UA"
Configuration Steps
voice service voip
media flow-around
allow-connections sip to sip
sip
sip-profiles 100 voice class sip-profiles 100
response 200 sip-header User-Agent add "User-Agent: CiscoSystems-SIP-GW-UA" |
This document was generated from the following thread: Cisco Gateway Rename
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