[Asterisk-Dev] Subscribe/Notify support

[Olle E. Johansson]

David (Dalei) Liu wrote:
> Hi,
> I'm a newbie to Asterisk source code but have been working on SIP for
> a while.  May I ask some questions, what's the status of the
> implementation of Subscribe/Notify framework(RFC 3265)? 
We have an implementation in CVS head for presence notification with
Subscribe/notify, but do not support Publish. This will be included in
version 1.2.

> Is it an
> existing facility implemented or planning somewhere, that we may add
> other type of service on top of it?  
What kind of service?

>What is status of full
> message-summary (RFC 3842) support?  I found a relative issue on the
> asterisk bug list (0002060) dated a year ago.

The implementation is not really subscription-driven, but works with most
phones.

> I'm think add such support if there's no such modules.  Are the
> parser/assembler and dialog/transaction modules easy to access and
> compliant with RFC3261?
Tough question. Not really easy to understand - after a few years with
the code I feel that I am beginning to understand it :-)

We will change a lot of the SIP support after the release of 1.2, so
hopefully things will improve a lot. The difference between the RFC
compliance in version 1.0 and 1.2 is huge. 1.2 will be a much better SIP
implementation.

/Olle