Nortel Networks SRG 50 NN43001-307 - Manual (Page 52)

52 Dialing Plan configuration
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/SIP Redirect Server) ( Procedure 4
"Configuring the NRS database" (page 57) ), 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.
If an branch office user dials 2 87654321, zone-based digit
manipulation does not occur because AC2 was dialed and ZACB =
AC1 AC1. The digit string remains unchanged 2 101 87654321. The
main office routes the call using ESN configuration and the dialed
digits.
3 Configure the Route List Index at the main office.
After configuring zone-based digit manipulation, a specialized route
for the call must be configured. To select a trunk to route calls, a
Route List Index (RLI) must be configured in the Route List Block
(RLB). The RLI uses the route number for the Virtual Trunk to route
calls to the NRS. A Digit Manipulation Index (DMI) is associated with
the RLI to allow manipulation of the digits to be outpulsed. For this
application, at the main office, the DMI is used to update the call
type of the off-net calls to the Special Number (SPN) to make sure
the number stays in the Private/Special Number domain.
a. Configure the DMI in LD 86 with the DGT feature.
LD 86 Configure the Digit Manipulation Index at the main office
Prompt Response Description
REQ NEW Add new data.
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
.