Nortel Networks NN43001-121 - Manual (Page 22)

22 Converged Office component overview
Remote Call Control with SIP CTI (TR/87)
The CS 1000 and OCS 2007 integration feature allows clients of the two
systems (Microsoft OCS 2007 and Nortel CS 1000) to communicate with
each other. You can associate an OC Client, which connects to the OCS,
with a CS 1000 line. You can perform operations on the CS 1000 line
through the OC Client using Remote Call Control (RCC) often referred to
as Phone-Mode. This feature allows for consistent access to RCC, service
control and configuration and telepresence functions across different
endpoints supported by the CS 1000.
The Nortel Converged Office Solution is implemented through an open
interface to ensure that any CS 1000 feature supported through OC 2007
is also accessible to applications from other vendors and application
developers who support these interfaces.
The SIP CTI (TR/87) protocol is on the CS 1000 Signaling Server. OC 2007
uses the TR/87 specification to implement phone integration throughout the
suite of Microsoft Office applications. You cannot use Office Communicator
to invoke a feature that is not supported by the phone.
Example of RCC with SIP CTI (TR/87)
Figure 5 "Remote Call Control with SIP CTI (TR/87)" (page 23) shows
an example of a CS 1000 call to a mobile client. The following steps
correspond to the numbers in the figure:
1. A user selects Call to Chris’ mobile phone number from the CS 1000
telephone.
2. The Office Communications Server 2007 sends a call request to
the CS 1000.
3. The CS 1000 sets up a call from the user’s phone to Chris’ mobile
phone number.
4. Chris answers his mobile phone and a media path is established
between the two phones.
Nortel Communication Server 1000
Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007
NN43001-121 01.03 Standard
Release 5.0 30 April 2008
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