Version 6.2 489 February 2011
SIP User's Manual 8. IP Telephony Capabilities
Translating one SIP response code to another.
Topology hiding (generally present in SIP headers such as Via, Record Route, Route
and Service-Route).
Configurable identity hiding (information related to identity of subscribers for example,
P-Asserted-Identity, Referred-By, Identity and Identity-Info).
Apply conditions per rule - the condition can be on parts of the message or call’s
parameters.
Multiple manipulation rules on the same SIP message.
Figure 8-52: SIP Header Manipulation Example
The manipulation is performed on SIP messages according to the Classification table
(source/destination of username/host prefixes and source IP address). The manipulation
can be performed on message type (Method, Request/Response, and Response type).
Message manipulations are performed only after the classification, inbound manipulations
and routing are successfully preformed (i.e., manipulations are performed only in the
outgoing leg).
SIP Message manipulation rules can be assigned to an IP Group in the IP Group table
(IPGroup parameter) and determined whether they must be performed for inbound or
outbound messages.
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