DMA OperationsGuide Prefix Service
278 Polycom, Inc.
The Edit Simplified ISDN Gateway Dialing Prefix dialog box lets you edit a
prefix-driven simplified ISDN gateway dialing service.
The following table describes the fields in the dialog box.
See also:
“Call Server Configuration” on page237
“Prefix Service” on page276
Note
This feature is not related to the Polycom DMA system’s built-in H.323<->SIP
gateway. Simplified ISDN gateway dialing is for routing calls to H.320 or PSTN
protocol gateways.
This feature isn’t supported for calls from SIP endpoints, but SIP endpoints can
make ISDN gateway calls by directly calling an MCU/gateway using its direct dial-in
prefix (see “Edit MCU Dialog Box” on page 142).
Table10-23 Fields in the Edit Simplified ISDN Gateway Dialing Prefix dialog box
Column Description
Name A display name for this service.
Description Brief description of the service.
Enabled Clearing this check box lets you turn off the service
without deleting it.
Simplified ISDN dialing
prefix The dial string prefix(es) assigned to this service.
Enter a single prefix (44), a range of prefixes (44-47),
multiple prefixes separated by commas (44,46), or a
combination (41, 44-47, 49).
If your dial plan uses the Dial services by prefix dial rule
(in the default dial plan) to route calls to services, all dial
strings beginning with an assigned prefix are forwarded
to this service for resolution.
Use all ISDN gateways Indicates whether this service applies to all available
gateways or only those selected below.
Available ISDN
gateways Lists the gateways that have at least one session profile
specifying an H.320 or PSTN protocol. See “Edit MCU
Dialog Box” on page142.
Selected ISDN
gateways Lists the selected gateways. The arrow buttons move
gateways from one list to the other.