Nortel Networks NN43001-321 - Manual (Page 32)

32 Converged Desktop Services
Rule 2 is important for a CD user. Although a CD user can enter a
destination number on the Multimedia PC Client, the call itself is originated
under CS 1000 control.
DNs as MCS aliases versus DNs as MCS usernames
This section describes how to assign a digit-based address (that is, directory
number [DN]) to an MCS 5100 user.
The following options are available to associate a DN with an MCS user:
• Provision the user’s username in the form of a DN.
• Provision the user’s alias in the form of a DN.
You must also do the following as part of the setup:
• Provision the user’s CD alias in the form of a DN.
• Provision the user’s public and private charge ID in the form of a DN.
The existing MCS practice is to provision a user with an alias in the DN
form. This works for non-converged MCS 5100 users but presents problems
to CD users when they initiate calls from the converged Multimedia PC
Client in the Click-to-Call mode, specifically from the following locations:
• Call Logs – Inbox window
• Friends Online window
• Directory window
In the cases, if the item represents an MCS 5100 user, the call is initiated
towards the destination identified by the MCS username. In the case of a
CD user, the call is actually handled by the CS 1000 Call Server that can
route based on DN addresses only. To ensure that the CS 1000 Call Server
receives a DN-based address, the MCS 5100 replaces the username with
the user’s private charge ID.
ATTENTION
Rule 3: In a mixed CS 1000/MCS 5100 network with Converged Desktop users,
MCS 5100 private charge IDs must be in the form of a UDP number (LOC + DN).
Directory Number qualification
An additional aspect of using digit-based addressing is the directory number
qualification.
Existing telephony systems support multiple address spaces. The address
spaces include the following:
• Public address space — which is subdivided into the following
categories:
Nortel Communication Server 1000
Communication Server 1000 to MCS 5100 Converged Desktop Type 2 Configuration Guide
NN43001-321 01.05 Standard
Release 5.0 15 February 2008
Copyright © 2005-2008, Nortel Networks
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