[Asterisk-Users] SIP on TCP

[John Todd]

"Abi"-
   I would suggest you then put in a feature request into 
http://bugs.digium.com/ and include this list thread.  Perhaps, in 
their copious spare time ;) the Asterisk development folks (or you, 
or someone else) might create a patch to handle SIP TCP connections. 
Of course, since Asterisk is open source, feel free to create the 
patch, sign the disclaimer (on the bugs site) and submit it! 
Everyone wins.  I have not personally found carriers that insist on 
TCP signalling for SIP, but I suppose I can see why (despite the 
higher load on core SIP proxies.)

   If you are unable to make Asterisk work in a real business 
environment as you describe, then this is probably a serious issue 
that should be considered as a more important feature request than 
others.

   I don't know how to automatically determine TCP or UDP for outbound 
connections without blocking or putting in some really nasty UDP 
failure detection modes.  Maybe this would best be configured to 
start with just "protocol=[tcp,udp]" as the only options, but I leave 
that to the patch writers, as they know far better than me how to 
make that work.


JT


>JT,
>
>We use 2 providers iPCB.NET and NTT (backup) and both require signalling
>on TCP only. Interestingly, I find this to be the norm amongst Cisco
>powered providers.
>
>As * marches on to the #1 telco product and SIP to the #1 protocol of
>choice, "protocol=[tcp,udp,auto]" feature is a good idea in sip.conf. I
>will add it as a feature.
>
>Master   
>
>-----Original Message-----
>From: asterisk-users-admin at lists.digium.com
>[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of John Todd
>Sent: Thursday, 4 September 2003 3:54 AM
>To: asterisk-users at lists.digium.com
>Subject: Re: [Asterisk-Users] SIP on TCP
>
>
>>Hi
>>
>>I read through the archives but could not find much reference to *
>>using SIP on TCP instead of UDP for signalling. Can * be
>>configured and if so how. My service provider will only accept SIP
>>signalling on TCP.
>>
>>Thanks
>>
>>Master
>
>Out of curiosity, what SIP provider is that?  I've never seen any SIP
>providers that even support SIP over TCP, much less mandate it.
>
>If that is required, maybe a "protocol=[tcp,udp,auto]" feature is a
>good idea in sip.conf.
>
>JT
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