Nortel SRG50, Configuration Manual

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Chapter 6 Setting up the private VoIP network 89
Survivable Remote Gateway 50 Configuration Guide
d Assign the PSTN line pool to the route (select the line pool from the Use Pool pull-down
menu).
2 Access the Dialing Plan - Routing panel ( Configuration > Telephony > Dialing Plan >
Routing ) and select the Destination Codes tab. Refer to the BCM50 Networking
Configuration Guide (N0027156) to:
a Add the destination code to be used to access the local (SRG50) PSTN.
Users on both SRG50 and main office telephones dial this destination code to access the
local (SRG50) PSTN. If this code goes only to the SRG50 PSTN, enter 9 + Wild Card 1.
This wild card allows any numbers not used by other 9-based destination codes.
In normal mode, the destination code is forwarded from the main office to the SRG50 for
SRG50 IP telephone calls that are connecting to the SRG50 PSTN.
b Assign the Normal and SRG scheduled route for the two destination codes.
Main office information
The SRG50 requires information about the main office call server that is not needed for a BCM50.
The SRG50 Element Manager accommodates this information with SRG-specific panels that are
activated after the SRG50 keycode is applied. The information required for these panels is specific
to the main office call server. Refer to the server-specific chapters for details (
“CS 1000
considerations” on page 33 and “CS 2000 considerations” on page 53 ).
The default line pool access code for pool A is 9. Delete this access code
before you attempt to create a destination code with 9.
CS 1000 Considerations:
1. For main office programming, this code is the offnet dialing
code that the gatekeeper recognizes for routing to the SRG50.
2. At the main office, zone-based digit manipulation is used to
add a Zone Digit Prefix (ZDP) to PSTN calls from SRG50 IP
telephones. The ZDP allows the main office to differentiate
between local PSTN calls made from main office telephones
(to the main office PSTN) and PSTN calls made from SRG50
IP telephones (to the SRG50 PSTN). The main office adminis-
trator for the CS 1000 supplies this ZDP with the prerequisite
information.