120Configuration

Load Balancer configuration

The pool of Front End servers is organized to process inbound and outbound traffic. The role of the Load Balancer in this architecture is to route incoming SIP-messages to the less busy server on the base of configured algorithm. Load Balancer’s VIP-address is used by clients as a single point of connection to the pool. This address is listed in DNS and has a FQDN. Internal OCS clients require a DNS server to establish connection with an Enterprise Edition Pool.

Voice Properties configuration

When introducing telephony support to an OCS 2007 the following OCS FE entities must be configured:

Step Action

1Location profiles. A location profile defines all phone numbers that can be dialed from a named location. A location contains one or, typically, more normalization rules. Normalization rules should be defined in the Location Profile to convert the dialstrings to the E.164 International format for all types of PSTN calls. For example, NXX, NPA and International. For all calls using private dialing plan (CDP or UDP), normalization rules must be defined in the Location Profile to convert the dialstrings to the Line URI format. For example, E.164;ext=xxxxxxx format.

2Normalization rules. Normalization rules are .NET regular expressions that define a phone number pattern. A set of normalization rules associated with a particular location constitute a location profile.

3Phone usage records. A phone usage record specifies a class of call (internal, local, long distance, or whatever) that can be made by various users, or groups of users, in an organization.

4Voice policy. A voice policy associates one or more phone-usage records with one or a group of users.

5Route. A voice route associates target phone numbers with particular IP-PSTN gateways and phone usage records. Source-based routing must be used for CS 1000 and OCS 2007 integration.

6Define users and enable their Voice and RCC capabilities.

—End—

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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Nortel Networks NN43001-121 manual Load Balancer configuration, Voice Properties configuration