Hi guys,
we have a bunch of SIP phones behind a fire wall, with our kamalio
server out on the internet. Most of them are the older SPA92x series,
but we have some new SPA502g's.
We have no problems calling between 92x and 502's. How ever the 502's
calling each other do not get voice path.
I have noticed that the phones REGISTER differently:
AOR:: 5546@<our domain>
Contact:: sip:5546@<OUR OFFICE IP>:1032 Q=
Expires:: 180
Callid:: 4754c4f9-c67e1018@10.0.41.29
Cseq:: 43112
User-agent:: Cisco/SPA502G-7.6.2a
State:: CS_DIRTY
Flags:: 0
Cflag:: 0
Socket:: udp:<OUR SR IP>:5060
Methods:: 6815
AOR:: 5...@sip.skunkworks.net.au
Contact:: sip:5590@10.0.41.14:5060 Q=
Expires:: 1154
Callid:: 24435738-224b06db@10.0.41.14
Cseq:: 8012
User-agent:: Linksys/SPA921-5.1.8
Received:: sip:<OUR OFFICE IP>:1026
State:: CS_SYNC
Flags:: 0
Cflag:: 64
Socket:: udp:<OUR SR IP>:5060
Methods:: 4767
The older 921 has its private IP in the contact, where as the newer 502
has the external IP of our office in the contact.
Our file wall is a Watchguard T-10 (latest updates etc) with the SIP-ALG
running.
Any thoughts on where to start looking ?
Cheers,
Ben.
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