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SIP User's Manual 8. IP Telephony Capabilities Below are header manipulation examples: Example 1 Rule: Result: Example 2 Rule: Result: Add a Proxy-Require header to the message: MessageManipulations 1 = 1, any, , header.ProxyRequire, 0, "'sec-agree'", 0; Proxy-Require: sec-agree Modify the Proxy-Require header to itsp.com: MessageManipulations 2 = 1, any, , header.ProxyRequire, 2, "itsp.com'", 0; Proxy-Require: itsp.com 8.4.9.2.19 Reason An example of the header is shown below: Reason: SIP ;cause=200 ;text="Call completed elsewhere" The header properties as shown in the table below: Header Level Action Operations Supported Keyword Add Yes Delete Yes Modify Yes Sub Types List Entries N/A Attributes MLPP MLPP Structure (see ''MLPP'' on page 529) Read/Write Reason Reason Structure (see ''Reason Structure'' on page 530) Read/Write Below are header manipulation examples: Example 1 Rule: Result: Example 2 Rule: Result: Example 3 Rule: Result: Add a Reason header: MessageManipulations 0 = 1, any, ,header.reason, 0, "'SIP;cause=200;text="Call completed elsewhere"'", 0; Reason: SIP ;cause=200 ;text="Call completed elsewhere" Modify the reason cause number: MessageManipulations 0 = 1, any, ,header.reason.reason.cause, 0, '200', 0; Reason: Q.850 ;cause=180 ;text="Call completed elsewhere" Modify the cause number: MessageManipulations 0 = 1, any, ,header.reason.reason.reason, 0, '483', 0; Reason: SIP ;cause=483 ;text="483 Too Many Hops" Note: The protocol (SIP or Q.850) is controlled by setting the cause number to be greater than 0. If the cause is 0, then the text string (see Example 3) is generated from the reason number. Version 6.2 517 February 2011
