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IP Phones Can't dial

I am having problems with a handfull of my IP phones not being able to dial any numbers, internal or external. They have been working fine and are configured the same as before. Running CCM 3.2(2c)SPG.

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Re: IP Phones Can't dial

CSCea20477 Bug Details

IP phone loses Calling Search Space config after phone reset

First Found-in Version 3.2(2c)SPG

First Fixed-in Version 3.2(2.43), 4.0(0.146), 3.2(2)ES63, 3.3(2)ES12, 3.3(2.48)

Release Notes


IP phone registered to a CCM server loses ability to call other phones

or out to the PSTN after the phone is reset. Once the condition starts

occurring, any additional phone that is reset is likely to experience the same

failure. CCM trace shows that the CallManager is no longer honoring the

Calling Search Space(CSS) configured for the IP phone.

example from CCM trace:

Cisco CallManager|Digit analysis: match(fqcn="4003", cn="4003", pss="", dd="9")

This snippet of CCM trace shows an attempted call from x4003. The pss should

be a list of valid partitions to be searched for the dialed destination (dd).

The pss shows no valid partitions even though in CCMAdmin both the phone device

and the phone line are configured with CSS containing several partitions


CallManager 3.2(2c)spG in a cluster of 2 or more servers. This is due to a

handle leak in the CCM.exe process. Open task manager on the callmanager

server, select the process tab, select view, then select columns, check the box

for handle count, select OK. Find the CCM.exe process and the assocaited

handle count. On most systems the handle count for CCM.exe should be less

than 10,000. The handle count is dependant on the system configuration and

registered devices, so it is best to benchmark a system handle count

immediately after a restart and then monitor for upward trends. Handle counts

can also be monitored and recorded through performance monitor

start->programs->administrative tools->performance for easier recording and



Register the IP phones to a backup server OR reboot the affected call

processing server. A fix for this issue is available in 3.2(2c)ES63. A fix

will also be available in 3.2(2c)spH posted in Software Center at

New Member

Re: IP Phones Can't dial

Afternoon, I can confirm I had the same problem over the weekend and the above does work . All I did was stop and restart CCM.EXE in the service panal of the primary ccm. After restart problem fixed.