AudioCodes Media 800 MSBR

User's Manual 234 Document #: LTRT-12809
Mediant 800 MSBR
headers. They can only be modified and only on requests that initiate
new dialogs. Mandatory SIP headers include To, From, Via, CSeq, Call-
Id, and Max-Forwards.
• The Message Manipulations table can also be configured using the table
ini file parameter, MessageManipulations or CLI command, configure
voip > sbc manipulations message-manipulations.
 To configure SIP message manipulation rules:
1. Open the Message Manipulations page (Configuration tab > VoIP menu > SIP
Definitions submenu > Msg Policy & Manipulation > Message Manipulations).
2. Click the Add button; the following dialog box appears:
Figure 20-3: Message Manipulations Table - Add Record Dialog Box
3. Configure the SIP message manipulation rule as required. See the table below for a
description of each parameter.
4. Click Submit to apply your changes.
The figure below displays an example of configured message manipulation rules:

Index 0 - adds the suffix ".com" to the host part of the To header.

Index 1 - changes the user part of the From header to the user part of the P-Asserted-
ID.

Index 2 - changes the user part of the SIP From header to "200".

Index 3 - if the user part of the From header equals "unknown", then it is changed
according to the srcIPGroup call’s parameter.

Index 4 - removes the Priority header from an incoming INVITE message.
Figure 20-4: Message Manipulations Page