Working With Dms-100 Switches; Creating An Nfas-Related Trunk Configuration On-The-Fly - AudioCodes Mediant 1000 User Manual

9.4.2

Working with DMS-100 Switches

The DMS-100 switch requires the following NFAS Interface ID definitions:
InterfaceID #0 for the Primary trunk
InterfaceID #1 for the Backup trunk
InterfaceID #2 for a 24 B-channel T1 trunk
InterfaceID #3 for a 24 B-channel T1 trunk, and so on for subsequent T1 trunks
For example, if four T1 trunks on a device are configured as a single NFAS group with
Primary and Backup T1 trunks that is used with a DMS-100 switch, the following
parameters should be used:
NFASGroupNumber_0 = 1
NFASGroupNumber_1 = 1
NFASGroupNumber_2 = 1
NFASGroupNumber_3 = 1
DchConfig_0 = 0
DchConfig_1 = 1
DchConfig_2 = 2
DchConfig_3 = 2
If there is no NFAS Backup trunk, the following configuration should be used:
ISDNNFASInterfaceID_0 = 0
ISDNNFASInterfaceID_1 = 2
ISDNNFASInterfaceID_2 = 3
ISDNNFASInterfaceID_3 = 4
ISDNIBehavior = 512
;ISDNNFASInterfaceID coniguration above
NFASGroupNumber_0 = 1
NFASGroupNumber_1 = 1
NFASGroupNumber_2 = 1
NFASGroupNumber_3 = 1
DchConfig_0 = 0
DchConfig_1 = 2
DchConfig_2 = 2
DchConfig_3 = 2
9.4.3

Creating an NFAS-Related Trunk Configuration On-The-Fly

The procedures for creating and deleting an NFAS group on-the-fly must be performed in
the correct order, as described below.
To create an NFAS Group, take these 3 steps:
1. If there's a backup ('secondary') trunk for this group, it must be configured first.
2. Configure the primary trunk before configuring any NFAS ('slave') trunk.
3. Configure NFAS ('slave') trunks.
SIP User's Manual
;Primary T1 trunk
;Backup T1 trunk
;B-Channel NFAS trunk
;B-channel NFAS trunk
;This parameter should be added because of
;Primary T1 trunk
;B-Channel NFAS trunk
;B-Channel NFAS trunk
;B-channel NFAS trunk
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Mediant 1000 & Mediant 600
Document #: LTRT-83303