[asterisk-users] SIP over TCP

[Asterisk]

That's excellent! So in theory one could not make Asterisk compatible SIP softphone in Flash (since Flash only supports TCP). Nice...

BR, Alex

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Michael Graves
Sent: Tuesday, June 24, 2008 1:29 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] SIP over TCP

No, TCP for media as well. I though that was the whole point of SIP
over TCP.

Michael


On Mon, 23 Jun 2008 16:59:00 +0200, Asterisk wrote:

>Hi,
>
>But you can only route SIP signalization over TCP. Audio stream must still go thru UDP, right?
>
>BR, Alex
>
>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Kristian Kielhofner
>Sent: Sunday, June 22, 2008 4:50 PM
>To: Asterisk Users Mailing List - Non-Commercial Discussion
>Subject: Re: [asterisk-users] SIP over TCP
>
>On 6/22/08, Michael Graves <mgraves at mstvp.com> wrote:
>> Ok, so now that it's possible to implement SIP over TCP instead of UDP
>>  why would I want to do this? Beyond simply integration with M$ OCS.
>>
>>  And what are the implications for management of QoS? I would expect
>>  that lost packets would be less of a factor.
>>
>>  Thanks,
>>
>>  Michael
>>  --
>>  Michael Graves
>>  mgraves<at>mstvp.com
>>  http://blog.mgraves.org
>>  o713-861-4005
>>  c713-201-1262
>>  sip:mjgraves at pixelpower.onsip.com
>>  skype mjgraves
>>  54245 at fwd.pulver.com
>>
>
>Michael,
>
>  The main advantages for SIP over TCP that I know of (in no particular order):
>
>- Better compatibility with NAT devices (it seems some of them don't
>do UDP well)
>- Support for TLS
>- Support for packet fragmentation (to support large/diverse SDPs, headers, etc)
>
>  I'm sure there are other ones but that's all I can think of this
>early on a Sunday morning...
>
>
>--
>Kristian Kielhofner
>NOT sent from my iPhone or Blackberry
>
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--
Michael Graves
mgraves<at>mstvp.com
http://blog.mgraves.org
o713-861-4005
c713-201-1262
sip:mjgraves at pixelpower.onsip.com
skype mjgraves
54245 at fwd.pulver.com



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