Hi Daniel,


I shall have a look at that when Im back in the office on monday :)


Cheers,


Ben.


On 17/03/17 18:04, Daniel-Constantin Mierla wrote:
Hello,

maybe the new phones do STUN and or the ALG breaks somehow the
signaling. You should send the ngrep output taken on sip server for such
a call in order to be able to analyze what can happen:

ngrep -d any -qt -W byline port 5060

Cheers,
Daniel


On 17/03/2017 06:32, b...@wtf.com.au wrote:
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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