External Gatekeeper Device Management
Polycom, Inc. 107
Prefix range The dial string prefix or prefix range for which the
external gatekeeper is responsible.
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 gatekeeper for resolution.
If your dial plan instead uses a rule that you create to
apply the Resolve to external gatekeeper action,
there is no need to specify a prefix.
Strip prefix If selected, the system strips the prefix when a call that
includes a prefix is routed to this gatekeeper.
Prefer routed If selected (the default), the system forces a call to this
gatekeeper to routed mode if:
•The gatekeeper is configured with a prefix.
•The destination signaling address in the
gatekeeper’s location confirm (LCF) message
contains its own IP address (indicating it’s in routed
mode).
This setting must be enabled to avoid interoperability
issues with Polycom CMA and Avaya gatekeepers, and
possibly others as well.
Authentication Mode In this section, you can configure the system to send its
H.235 credentials when it sends address resolution
requests to that gatekeeper.
Enabled Clearing this check box lets you stop sending H.235
credentials to the external gatekeeper without deleting
them.
Name The H.235 name of the Polycom DMA system.
Password
Confirm password
The H.235 password for the Polycom DMA system.
Algorithm Select the encryption algorithm for H.235
authentication.
LRQ test Click to test the configuration by sending an LRQ
message to the external gatekeeper.
Table 5-12 Edit External Gatekeeper dialog box
Column Description