Zhone Technologies 600 - Manual (Page 170)

6-20 Server Cards
Model No. Running Head Configuring ISDN Features ACS-PRI/BRI Card
6.4 Configuring ISDN Features
When one or more T1 WAN links terminating in a system are provisioned for ACS-PRI/BRI,
users must configure the system’s ISDN features before calls can be set up.
Configuring ISDN features consist of the following four steps:
1. Assigning interface identifications to WAN link(s)
2. Assigning B channels to the D channel(s)
3. Coding the call-by-call service(s) to be used
4. Assigning call routing information
Each of these steps is accessed from the top level D channel configuration screen by selecting
the corresponding menu item to bring up the desired subscreen. Each subscreen is described
in the following sections.
6.4.1 Assigning Interface Identifications
Each ISDN facility (interface) that terminates at the user’s premises is assigned a unique Intf.
ID (interface identification) by the carrier. Whenever the system signals the carrier switch on
the D channel, it uses the Intf. ID(s) assigned by the carrier to tell the switch to which facility
(interface) it is referring.
Note: In the unlikely (but possible) event that a single facility is split between two carriers
(i.e., two D channels each controlling some of the B channels on that facility), it is
possible that the same facility (interface) will have two different interface IDs–one for
each carrier. Thus, the list of interface IDs is unique to a specific D channel only, but
may be repeated across different D channels.
Figure 6-9 shows the Interface Identification subscreen. This subscreen is accessed by placing
the cursor in the column of the desired D channel, then pressing “i”. The list of all interfaces
(WANs) then appear with their assigned interface IDs. The default value is 99, which means
“interface ID not yet assigned.” Values for the Interface ID are 00-31 and 99.