Nortel Networks NN43001-121 - Manual (Page 120)

120 Configuration
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
1 Location 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.
2 Normalization 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.
3 Phone 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.
4 Voice policy. A voice policy associates one or more phone-usage
records with one or a group of users.
5 Route. 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.
6 Define 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
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