User's Manual

Polycom CMA System Operations Guide
532 Polycom, Inc.
The MCU cannot register
with the CMA system.
Some MCU vendors register with a
GRQ message instead of an RRQ
message.
Some MCU vendors do not retry
registration after a first attempt has
failed.
• Verify that the Default Gatekeeper
check box is selected in the Admin >
Gatekeeper Settings > Primary
Gatekeeper page.
• Reset the MCU or MGC card to force
registration to occur.
An endpoint shows that it is
not registered to the
gatekeeper in the
Gatekeeper Registration
field in the Device Status.
The CMA system receives the RRQ
message, but not the LWRRQ
message from the endpoint.
The endpoint did not send a
LWRRQ message within the offline
timeout period specified in the
Admin > Gatekeeper Settings >
Primary Gatekeeper page.
• Reboot the endpoint.
The RadVision OnLAN
MCU continually changes
state: from online to offline
and offline to online.
The Radvision OnLAN MCU ignores
the RCF Time to Live (TTL) field,
which is filled in with the value that
the administrator specified in the
offline timeout field in the Admin >
Gatekeeper Settings > Primary
Gatekeeper page.
• Reconfigure the Radvision OnLAN
MCU to send the registration requests
in the same time period specified in
CMA.
• Add the MCU manually.
• Reboot the MCU to force registration to
occur.
Some endpoints are not
assigned ISDN numbers.
A registered H.323-only system was
not assigned an ISDN number. The
system could belong to a network
that does not have ISDN number
ranges assigned to it.
No ISDN numbers are available to
assign.
• Verify that the endpoint belongs to the
site that has assigned ISDN number
ranges. To do so, go to Admin > Dial
Plan and Sites > Sites and make sure
the site has the correct ISDN range
specified in the ISDN Number
Assignment pane.
• Verify that ISDN numbers are available
to assign.
• Verify that the RCF message “Can’t find
ISDN free pool” from the gatekeeper
returns to the endpoint.
Endpoints that were
previously registered and
auto-assigned ISDN
numbers are being rejected
when attempting to register.
Inconsistent configuration in ISDN
number assignment has occurred.
• Verify that the previous ISDN range was
changed.
When the CMA system is
restarted, some registrants
that were previously online
are now offline.
Some endpoints do not reregister
when the CMA system goes down.
Some MCUs do not reregister
automatically after two retries.
• Reboot the MCU.
Problem Description Solutions