Nortel Networks Remote Gateway 50 Uživatelský manuál stáhnout pdf (Strana 168)

Page 168 of 258 Dialing Plan configuration

553-3001-207 Standard 2.00 January 2006

On-net dialing plan

Note: The SRG only supports only one dialing plan option at a time.

CDP and UDP dialing plan options cannot be configured at the same time

in the same system.

The SRG supports the following dialing plans:

• Coordinated Dialing Plan (CDP) – BUID is the same as the Directory

Number (DN)

• Uniform Dialing Plan (UDP) – Location code is added to the DN for the

BUID

Note 1: Nortel recommends that the SRG use CDP.

Note 2: CDP Terminal Numbers (TNs) can be activated on the other

systems if the user moves and wants to retain their phone number. SRG

does not support Transferable Directory Numbers (TNDN) due to

differences in dialing plans and the small range of DNs available on the

SRG.

For specific examples for CDP and UDP dialing plans, refer to “Dialing plan

examples” on page 193.

Once the call is sent over the IP network, the call is routed to the SRG, which

uses the NRS (H.323 Gatekeeper) to route the call. The NRS (H.323

Gatekeeper) translates the address form a telephone number to an IP address,

and authorizes the call.

Specific dialing plan configuration is required for IP Phones to properly

select a main office or a branch office that provides access to the PSTN for

the originating IP Phone. A common configuration might be:

• SRG users select the SRG PSTN for local calls.

• Main office users select the main office PSTN for local calls.

• All users select either the main office or SRG PSTN for long-distance

calls to minimize toll charges.

• calls configured to minimize toll charges.

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Nortel Networks Remote Gateway 50 Uživatelský manuál Strana 168