IM client compatible with MS Lync?

[Ric Moore]

On 02/20/2012 01:49 AM, Mark Widdicombe wrote:
> Good day all,
>
> My company has a new communications policy in terms of which we are
> required to use MS Lync instead of email for office communication.
> I've been trying to get a client to work in Ububtu 10.04, but without
> success.  Empathy does not have the option for office communicator
> client and I keep getting a "Wrong password" error when trying to
> connect with Pidgen, despite having configured it according to
> instructions.  Has anyone on the list managed to successfully connect
> to MS Lync?  And if so, how?

Did you read this?
http://sourceforge.net/projects/sipe/forums/forum/688534/topic/4705138

Seems it is the great debate over why it fails and what to do among the 
sipe crowd. Sounds like a bleeding nightmare getting the correct handshakes.

One guy writes: "We use MS Office Comunicator at work. I have managed to 
get pidgin to talk to it after installing the SIPE plugin. YMMV. Good luck."

Let us know if that helps. Ric