[SR-Users] cisco spa502g issues

[ben at wtf.com.au]

Hi Daniel,


I have attached the gzipped ngrep log I created. There are a number of 
calls between two of the phones in question, all with out audio working. 
The phones work fine when calling a different model, or when 
receiving/make external calls.

Ive had a look as I changed the ip address and domain, but really dont 
know what I am looking for.

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, ben at 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 at 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:: 5590 at sip.skunkworks.net.au
>>                   Contact:: sip:5590 at 10.0.41.14:5060 Q=
>>                           Expires:: 1154
>>                           Callid:: 24435738-224b06db at 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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