[sr-dev] [kamailio] Unquoted IPv6 Contact header alias parameter causes issues with Asterisk (PJSIP) & TOPOH module (#120)

[Anthony Messina]

Thank you for the advice, @miconda.  I believe this may be a bug in PJSIP's header parsing (https://trac.pjsip.org/repos/browser/pjproject/trunk/pjsip/src/pjsip/sip_parser.c#L1128).  I'm not a C coder, but I've learned to troll through the code until I find something reasonable. Perhaps you can spot something in there.  I have requested to join the PJSIP mailing list to ask about this issue.

I asked originally about the quoting because I noticed Kamailio does quote the "received" parameter in the Contact header when it's sent back to a UAC:
```
SIP/2.0 200 OK.
v: SIP/2.0/UDP 10.1.1.1:5060;rport=5060;branch=z9hG4bKPjCF9fXKT.TUYCvcI8L4gj70nJMeMYZwXR;received=10.1.1.2.
f: "Test" <sip:test at example.com>;tag=fFfFWPFbM71fqOQLp9biV6jtcZy-M3Ja.
t: "Test" <sip:test at example.com>;tag=ac90c8713242940d16090974f12e49d3.d0ca.
i: ZU0l8HgtMQ80aFG.P6LdNwCTtFiAlTBr.
CSeq: 895 REGISTER.
Contact: <sip:test at 10.1.1.1:5060;ob>;expires=900;received="sip:10.1.1.2:5060".
Supported: outbound.
Content-Length: 0.
```

---
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/issues/120#issuecomment-90752535
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