User`s manual

SIP User's Manual 466 Document #: LTRT-83303
Mediant 1000 & Mediant 600
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 ;Primary T1 trunk
DchConfig_1 = 1 ;Backup T1 trunk
DchConfig_2 = 2 ;B-Channel NFAS trunk
DchConfig_3 = 2 ;B-channel NFAS trunk
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 ;This parameter should be added because of
;ISDNNFASInterfaceID coniguration above
NFASGroupNumber_0 = 1
NFASGroupNumber_1 = 1
NFASGroupNumber_2 = 1
NFASGroupNumber_3 = 1
DchConfig_0 = 0 ;Primary T1 trunk
DchConfig_1 = 2 ;B-Channel NFAS trunk
DchConfig_2 = 2 ;B-Channel NFAS trunk
DchConfig_3 = 2 ;B-channel NFAS trunk
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.
¾ 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.