Polycom realpresence 1800 Administrator's Manual page 569

4 Click Next.
The PRI Settings dialog box is displayed:
5 Define the following parameters:
ISDN Service Settings
Field
Default Num Type
Num Plan
Net Specific
Polycom®, Inc.
Description
Select the Default Num Type from the list.
The Num Type defines how the system handles the dialing digits. For example,
if you type eight dialing digits, the Num Type defines whether this number is
national or international.
If the PRI lines are connected to the Collaboration Server via a network switch,
the selection of the Num Type is used to route the call to a specific PRI line. If
you want the network to interpret the dialing digits for routing the call, select
Unknown.
Default: Unknown
Note: For E1 spans, this parameter is set by the system.
Select the type of signaling (Number Plan) from the list according to information
given by the service provider.
Default: ISDN
Note: For E1 spans, this parameter is set by the system.
Select the appropriate service program if one is used by your service provider
(carrier).
Some service providers may have several service programs that can be used.
Default: None
Defining ISDN/PSTN Network Services
538