Nortel Networks SRG 50 NN43001-307 User Manual
Page 51
Configuring the dialing plan for PSTN access to SRG users in Normal Mode
51
LD 117 Define the zone digit manipulation for the branch office zone at the main office
Command
Description
CHG ZDP <zone> <DialingCode1> <DialingCode2> <DialingCode3>
Define the dialing plan for the branch office zone, where
DialingCode1, DialingCode2, and DialingCode3 are inserted into
the dialed digits between the Access Code and the remainder of
the dialed number.
The ZDP and ZACB (step 1) properties are used to configure the
digit manipulation behavior of the branch office zone.
The ZDP property is inserted between the Access Code specified
in the ZACB command and the dialed digits. This zone-based digit
manipulation allows the main office Call Server and the network
NRS to distinguish the SRG user calls from the main office user
calls, and route them accordingly. The digit manipulation occurs
before any digit processing in the main office Call Server or NRS.
ATTENTION
If DialingCode1, DialingCode2, or DialingCode3 are already present in
the dialed digits, then they will not be re-inserted.
Nortel recommends that the ZDP attribute for each branch office
zone be set to a unique non-dialable number within the dialing plan
(for example 1019 or 999). This unique non-dialable number can
then be used, when configuring the main office ESN Special Number
(step 4 of
Procedure 3 "Configuring the main office" (page 49)
)
and the NRS (H.323 Gatekeeper) (
), to route the calls to the branch office for
connection to the local PSTN.
For example, assume AC1 = 1, AC2 = 2, ZACB = AC1 AC1, and
ZDP = 101.
If an branch office user dials 1 87654321, zone digit manipulation
occurs because AC1 was dialed and ZACB = AC1 AC1. ZDP is
inserted in the dialed digits to form a digit string of 1 101 87654321.
The call is routed differently than with the digits 1 87654321. ESN
configuration at the main office Call Server (step 4) routes the call
to the NRS because it recognizes 101 87654321 after the Access
Code rather than 87654321. The Access Code (1) is not included
in the digit string that is sent to the NRS. The NRS recognizes 101
at the front of the digit string and routes the call to the destination
SRG. At the branch office, the ESN Special Number is configured
(step 2) to remove 101 from the digit string and route the call based
on the digits 87654321.
Nortel Communication Server 1000
Main Office Configuration Guide for SRG 50
NN43001-307
02.02
Standard
Release 5.0
3 December 2007
Copyright © 2005-2007, Nortel Networks
.