[asterisk-users] Not a valid SIP contact - Asterisk 1.4.21.1 & Mitel SIP phones

[Grey Man]

> 2008/7/19 Mark Wiater <mwiater at cablespeed.com>:

Your problem is the Contact header coming back in the Mitel's Ok response.

Contact:"p:517 at 172.16.1.174>;tag=4881ea36-2ca-6747d965

Asterisk is not going to be able to parse that! It should be:

Contact: <sip:517 at 172.16.1.174>;tag=4881ea36-2ca-6747d965

I'd get your Mitel vendor to log a fault about that. It's a big
problem as the Contact field is critical for further in-dialogue SIP
requests such as transfer related requests and BYEs.

Regards,

Greyman.