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