[Freeswitch-users] Aastra phone registration lost

[David Ponzone]

Philippe,

can you confirm there is no NAT Keepalive feature in the Aastra ?
That's quite weird.

David Ponzone  Direction Technique
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Le 10/02/2011 à 11:39, Philippe Sultan a écrit :

> Tim,
> 
> That helped a lot, thanks! More comments inline.
> 
> On Thu, Feb 10, 2011 at 3:18 AM, Tim St. Pierre
> <fs-list at communicatefreely.net> wrote:
>> I'm wondering about these values:
>> 
>>> sip registration retry timer: 10
>>> sip registration renewal timer: 15
>>> sip registration timeout retry timer: 10
>>> sip registration period: 60
>>> sip rport: 1
>>> 
>> They seem a bit short, especially on a LAN.  Do you really need your
>> phones to re-register every 45 seconds?
> 
> Indeed, I don't. But need a mechanism to keep NAT sessions alive in
> case phones are being deployed behind NAT boxes. It seems like
> transporting SIP over TCP from the phone, plus using TCP keepalives
> will solve that issue though. I also have Thomson ST2030 phones, and
> they send SIP OPTIONS packets every 50 seconds for that purpose (all
> handled by the SER proxy).
> 
>> Try setting sip registration period to 600  That's 10 minutes.
>> sip registration renewal timer can be a bit longer - 30 seconds maybe,
>> or 60 if you are at all worried about reliability.
> 
> Here is what I put in the aastra.cfg file from your suggestions :
> 
> sip registration period: 3600
> sip registration renewal timer: 3565
> 
> And that does the trick, that is, the phone registers every 45
> seconds. I'll try to update those values to have a larger registration
> period, rely on TCP keepalives in order to maintain NAT sessions, and
> have all that NAT handling in SER. Here is the topology :
> 
> Aastra ---(sip/tcp)--- SER ---(sip/udp)--- FS
> 
> ST2030 ---(sip/udp)--- SER ---(sip/udp)--- FS
> 
> Thanks again!
> 
> Philippe
> 
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