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[reSIProcate-users] Compatability with RFC2543 clients


Im trying to build a stric routing proxy using resip.

Ive got it working with 2 Cisco IP phones fine, but Ive also got some old Cisco ATA186 which I dont think are RFC3261 compliant.

Whenever one of these is involved in the call strange things happen.

www.simple.org/notworking.html shows a sample message exchange between an ATA 186 (202@xxxxxxxxxxxxx) calling a Cisco IP phone (200@xxxxxxxxxxxxx) via the resip based proxy at 192.168.254.254.

The called phone rings but the 180 appears to be disliked by resiprocate when its forwarded on.

I suspect Im doing something wrong with the forwarding of either the INVITE or the 180 but for a call between two Cisco IP phones it works fine.

Any ideas please

Regards

Andrew

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