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2009 Nov 29
3
Parsing custom SIP headers
...plan using nothing but CUT(). It's so easy to make false assumtions about angle brackets (< >), whitespace (LWS), quotes (") around the display-name, character escaping etc. All of the applications of CUT() I have seen are way too simplistic. Example of how it could work: Set(addr=${SIP_PARSE_HEADER(${SIP_HEADER(P-Asserted-Identity)},addr-spec)}); Interesting parts include: name-addr, display-name, addr-spec, scheme, userinfo, user, telephone-subscriber, host, hostname, port, ... Actually headers like P-Asserted-Identity can even have more then one value. ---cut--- PAssertedID = &quo...