well on the microsoft side we have the two main scenarios which interact not
only in MS environment:
- one is the softphone integration, where office communicator acts as single
user agent (having its own phonenumber). in this case all the SIP traffic is
routed to this OCS mediation server to communicate with the 'outer' (non-MS)
world using the OCS mediation server as gateway.
- the other scenario is CTI, which means one phonenumber can either be
routed to your office communicator client or to any hardphone connected to
your pbx (which is in my case *). this has also the effect, that if for
example i setup a call on my mobile the office communicator is informed
about that to indicate in its presence indications, that i'm in a call. or
for example you wanna setup a call by just clicking on one of your outlook
contacts (click-to-call) but you want to use your deskphone (e.g. you wanna
use your deskphone-headset). this just clicking on your outlook contact
triggers an INVITE event letting your deskphone ring. when you pick up the
receiver the call is issued to your callee.
in this second scenario the SIP/CSTA traffic coming from OCS is not routed
to the OCS mediation server but to a kind of external server which controls
the telephony integration something like the siemens TCL (telephony control
my goal is now to establish this telephony link to *. but as * doesn't
understand SIP/CSTA, i thought of a box (e.g. my openSER box) which can do
this uaCSTA to SIP translation.
From: Juha Heinanen [mailto:firstname.lastname@example.org]
Sent: Friday, April 18, 2008 10:11 AM
To: Hugo Koblmueller
Subject: RE: [OpenSER-Users] uaCSTA support in openser
Hugo Koblmueller writes:
so now what i'm looking for is a module (or a perl
understands > uaCSTA (aka. CSTA XML over SIP) or at least the
OCS is using and > can translate it into standard SIP messages and vice
versa, as this is > needed to implement the CTI integration for OCS 2007.
a question: why does openser need to map CSTA XML over SIP to SIP if
microsoft OCS mediation server already exists that gateways CSTA to SIP?