Nortel Networks NN43001-121 - Manual (Page 154)

154 Configuration
In this figure, the CS 1000 has a HLOC of 354 and an LOC dialing plan
entry of 344. The LOC dialing plan 344 is not dialable, however, calls to the
DN: 6712 extend the call to the number 6-344-5000. By PCA extending the
call to 6-344-5000, a SIP Invite is sent to the OCS Proxy server.
The OCS Proxy server runs MCM, which handles the Invite and reads the
Original Called Number as 354-6712. The call is sent to the Mediation
server and To and RequestURI are mapped to the Line URI. In this diagram
the user is [email protected]
The purpose of configuring is to ensure that the Office Communicator has
the same phone number for both incoming and outgoing calls.
For more information about Dialing Plans, see IP Peer Networking
Installation and Commissioning (NN43001-313).
Configuring the Personal Call Assistant
Personal Call Assistant (PCA) is used to "twin" incoming calls so users can
answer the calls on either their desktop phone or Office Communicator 2007.
For incoming calls to be extended to the "twinned" Office Communicator
client, a PCA Terminal Number (TN) must be defined for that DN. A new
PCAM Class of Service prompt has been introduced so a distinction
is made between PCA associated with the OCS 2007 client and PCA
associated with other types of clients. Class is configured using BCC. For
more information on BCC, see Basic Client Configuration. PCA associated
with the OCS 2007 client, the class is set to PCAM. Other types of clients
use the default class PCAG. During call processing, the class is checked to
determine whether an incoming call should be extended to the PCA target
DN or not. For more information about configuring PCA, see Features and
Services (NN43001-106).
The PCA TN is configured to send the call to another number. In the case of
"twinning" to Office Communicator, the call is sent to a number that is not
dialable but routes the invite to the Office Communications Server. For more
information, see Configuring the Dialing Plan to route to MCM.
ATTENTION
IMPORTANT!
If SIP CTI control is also enabled for that telephone, the PCA TN cannot be
MARP 0.
Nortel Communication Server 1000
Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007
NN43001-121 01.03 Standard
Release 5.0 30 April 2008
Copyright © 2005–2008, Nortel Networks
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