- Nortel IP Phone Mobile Communication Integration Guide

Data Access Planning 15

Parameter: National/Number of Digits to strip

For incoming national (NPA) calls this parameter defines the number of

digits to strip from the incoming phone number prior to conversion to E.164

format.

Parameter: National / Prefix to insert

For incoming national (NPA) calls this parameter defines the prefix to

insert after stripping any digits necessary from the incoming phone number

prior to conversion to E.164 format.

Mobile preﬁx

Before configuring and deploying the MCC 3100 solution, the administrator

determines the Mobile prefix for the MCG 3100. The mobile prefix is a digit

prefix used to prefix to all calls that will be sent to the MCG 3100. This

includes the target DN number of all UEXTs for MC 3100 users as well as

the service DN calls from MCC 3100 clients. The mobile prefix provides a

unique digit sequence within the SIP domain to route calls to a specific

MCG 3100 that does not conflict with the existing dial plan and routing

configuration for CDP and UDP numbers. If the UEXT target DN did not

have this prefix to distinguish MCC 3100 calls, the UEXT extended SIP

calls would loop back to the UEXT.

mobile prefixes have the following requirements:

• One mobile prefix is required per gateway.

•

On the call server you must configure

— The dial plan to send all calls with this prefix to the NRS.

— All UEXT’s for MCC 3100 users must have a target DN with

the prefix of the MCG 3100 to which their MCC 3100 client is

registered.

— The incoming service DN call must have its digits manipulated so

that the PSTN number dialed for the service DN is mapped to a

number prefixed by the mobile prefix. This mapping will trigger the

NRS to send this call to the MCG 3100 and the MCG 3100 will strip

this prefix as with any other mobile prefix prefixed call to reveal the

service DN configured on the MCG 3100.

•

The NRS must have a routing rule to send all calls with this prefix to

the MCG 3100.

• The mobile prefix is configured on the MCG 3100 in the User Prefix

for Call Termination field.

Data Access Planning

This section describes things to consider when planning data access.

• "CS 1000 data access considerations" (page 16)

Nortel Mobile Communication 3100

Mobile Communication 3100 and Communication Server 1000 Solution Integration Guide

NN49000-315 02.01 2 October 2009