[Twisted-Python] SIP support

[Allen Short]

On Thu, Jan 15, 2009 at 02:07:41PM +0000, Phil Mayers wrote:
> What's the current status of SIP support in twisted?
>
> I know the support in trunk is older, and there's some newer stuff  
> (Sine) on divmod.org (see below) but that's seems heavily dependent on  
> mantissa, and crucially doesn't support TCP.

I'm currently working on getting RFC 3261-compliant SIP code into
twisted, based on the work in Sine.  A description is here:
http://twistedmatrix.com/trac/wiki/SIPPlan

I'm currently working on #3584, which will provide the transaction and
transport layers described by the RFC.

> Also - I'm having problems resolving divmod.org from here, as I think  
> "ohm.divmod.org" is not responding to DNS queries.

There was a DNS misconfiguration, that should be fixed now.