Nortel 1000 Fundamentals page 149

Configuring MCM for Remote Call Control For Remote Call Control,
the Nortel MCM application that resides within the Office Communications
Server domain provides support for authorizing TR/87 service requests
and redundancy.
Authorization of TR/87 service MCM supports authorization of Remote
Call Control service requests from Office Communicator clients. The
following is a summary of the authorization algorithm:
1. The SIP INVITE "from" header provides the Requestor Identity (for
2. The CSTA XML message provides the Controlled Device Identity (for
3. The Owner Identity is found by a reverse lookup using the Controlled
4. If a result is found in
The primary function of MCM when authorization is enabled, is to ensure
that an Office Communicator user can use Remote Call Control only for the
phone URI, and that Remote Call Control SIP URI as configured in Active
Directory for that user by the System Administrator as depicted in
51 "Enable phone integration on the client" (page
the hands of the System Administrator is necessary in environments where
users must not override their phone integration configuration through the
manual phone integration option in Office Communicator.
Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007
Copyright © 2005–2008, Nortel Networks
.
example, the Office Communications Server user identity).
example, the phone URI).
Device Identity found in
Active Directory, Find the User whose msRTCSIP-Line equals
"Controlled Device ID", then find the msRTCSIP-PrimaryUserAddress of
that User).
Identity, and msRTCSIP-OptionFlags has RCC enabled, then approve
the request. Otherwise, reject the request.
Note: Disabling TR/87 authorization on the MCM is strongly
discouraged. When this functionality is disabled, users can override
their active directory configuration and control any DN in the system that
is provisioned to support SIP CTI.
Nortel Communication Server 1000
NN43001-121 01.03 Standard
Release 5.0 30 April 2008
Item 2 as a query to Active Directory (Search
Item 3, the Owner Identity is equal to the Requestor
MCM 3.0 configuration 149
Figure
150). Placing control in