[reSIProcate] reSIProcate and LCS?

[Chris Rigg]

Hi Sandeep,

I just responded to Scott with some info that may be useful to you. I 
would love to compare notes with you. I'll be using the resip stack 
quite extensively over the course of the next few months to try to 
interoperate with LCS 2005 SP1 (which is what I have installed 
currently). I'll likely be writing several programs similar to "limpc" 
that will generate INVITEs, SUBSCRIBEs, NOTIFYs and MESSAGEs (though, as 
you pointed out, 2005 SP1 only supports session mode -- but it does 
support receipt of MESSAGEs w/in an already established session). 
Ideally, I would get my hands on a detailed interface spec that would 
make writing code to interoperate much easier on myself. I suspect such 
an interface exists since MSFT claims they interoperate with AOL and 
Yahoo in Federation mode -- obviously those 2 companies had something to 
work from.

Chris

Sandeep Sharma wrote:

>I tried to make resip and LCS work together a while back. without much
>success. TLS is required. I have heard LCS 2005 SP1 has fixed a bunch of
>federation related bugs but have not tried with it myself.
>
>One thing I do know is that page-mode instant messaging is not
>supported. MESSAGEs need to be sent inside an INVITE session.
>
>Chris, it might be interesting to exchange notes since I am going to try
>testing against LCS 2005 SP1 soon.
>
>Thanks
>Sandeep
>
>On Tue, 2005-08-16 at 17:28 -0400, Scott Godin wrote:
>  
>
>>Apparently to use "Federation Mode" you must use the TLS transport.  As
>>far as I know - no one has tried this with resip yet.  Although it is on
>>my list of things to try out.  : )
>>
>>On the other hand - I have used resip to communicate with LCS by setting
>>up the resip endpoint as a trusted node.  Note:  LCS does not support
>>UDP - so you must use a TCP transport.  Don't expect to be able to
>>register with LCS though - since you need to implement those Microsoft
>>extensions that you mentioned (ie. Kerberos/NTLM Authentication instead
>>of Digest).
>>
>>Scott
>>
>>-----Original Message-----
>>From: resiprocate-devel-bounces at list.sipfoundry.org
>>[mailto:resiprocate-devel-bounces at list.sipfoundry.org] On Behalf Of
>>Chris Rigg
>>Sent: Tuesday, August 16, 2005 5:21 PM
>>To: resiprocate-devel at list.sipfoundry.org
>>Subject: [reSIProcate] reSIProcate and LCS?
>>
>>Hello,
>>
>>I am trying to connect reSIProcate to Microsoft's LCS (Live 
>>Communications Server) in Federation mode (i.e. Public IM). In this 
>>mode, instant messenger users (i.e. MOC clients) can communicate OUTSIDE
>>
>>of their domain. For example, with Federation mode a user named 
>>john at abc.com (that uses LCS as their enterprise IM server) can IM with 
>>sam at aol.com. The inter-domain protocol that is used to make this happen 
>>is called "Federation". The protocol is basically just some MSFT 
>>extensions onto standard SIP/SIMPLE messages. However, I'm running into 
>>plenty of problems when trying to interoperate between reSIProcate and
>>LCS.
>>
>>Has anyone tried to do something similar?? If so, was there a detailed 
>>Microsoft Federation mode interface spec that you followed or something?
>>
>>Thanks,
>>Chris
>>_______________________________________________
>>resiprocate-devel mailing list
>>resiprocate-devel at list.sipfoundry.org
>>https://list.sipfoundry.org/mailman/listinfo/resiprocate-devel
>>_______________________________________________
>>resiprocate-devel mailing list
>>resiprocate-devel at list.sipfoundry.org
>>https://list.sipfoundry.org/mailman/listinfo/resiprocate-devel
>>    
>>