[cisco-voip] cant dial out from ip phone

[Ryan Ratliff]

That was indeed a nasty bug but a very old one.  You will want to 
upgrade your CM or you will hit it again.  It's actually a handle leak 
that causes phones to lose their CSS info.

-Ryan
On Oct 20, 2004, at 10:09 AM, Chad Whitten wrote:

> turns out, this is actually a bug in callmanager.  the ip phones lose 
> their
> calling search space after a reset.
>
> looks like i will be rebooting the callmanager servers
>
> for anyone who is interested, here is the bug #
>  	CSCea20477 Bug Details
>
> Release Notes
>
> Symptoms:
> 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
>
> Conditions:
> CallManager 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
> trending.
>
> Issue introduced in CCM 3.2(2c)spG and resolved in 3.2(2c)spH
> Issue introduced in CCM 3.2(2c)ES39 and resolved in 3.2(2c)ES63
>
> Workaround:
> Register the IP phones to a backup server OR reboot the affected call
> processing server. Then upgrade CCM to a fixed version for a long term 
> fix.
>
> On Wednesday 20 October 2004 08:59, Lelio Fulgenzi wrote:
>> This certainly sounds serious. The best would be to start looking at 
>> the
>> trace files, I know it might take a few minutes but that is your best 
>> bet.
>> The trace will show you the results of the dialed numbers and whether 
>> or
>> not the calling search spaces are still valid.
>>
>> A call to the TAC might be in order as well.
>>   ----- Original Message -----
>>   From: Chad Whitten
>>   To: cisco-voip at puck.nether.net
>>   Sent: Wednesday, October 20, 2004 9:54 AM
>>   Subject: Re: [cisco-voip] cant dial out from ip phone
>>
>>
>>   apparently this is worse than i had feared, turns out, once a phone
>> reboots, it cant dial out, no matter what partition its in.
>>
>>   On Wednesday 20 October 2004 08:45, Chad Whitten wrote:
>>> i came in this morning and found that all phones in one partition 
>>> could
>>> not place outbound calls (to the pstn and to other ip phones within 
>>> the
>>> same partition or other partitions).  I get a fast busy as soon as I
>>> hit any key.
>>>
>>> I moved my phone to this partition in question and observed the same
>>> behavior. then, I tried moving my phone back to its normal partition
>>> and I still could not place outbound calls, but other phones in that
>>> partition could.  I then just replaced the phone with another (7940)
>>> and still had the same problem.
>>>
>>> Inbound calls work fine (both from the pstn and from an ip phone), 
>>> the
>>> phone is registered with the callmanager.
>>>
>>> I tried just deleting the phone and readding it.  changing the line
>>> number, etc.  nothing works.
>>
>>   --
>>   Chad Whitten
>>   Network Administrator
>>   neXband Communications
>>   cwhitten at nexband.com
>>   601-944-4801 Phone
>>   601-944-4803 Fax
>>
>>   _______________________________________________
>>   cisco-voip mailing list
>>   cisco-voip at puck.nether.net
>>   https://puck.nether.net/mailman/listinfo/cisco-voip
>
> -- 
> Chad Whitten
> Network Administrator
> neXband Communications
> cwhitten at nexband.com
> 601-944-4801 Phone
> 601-944-4803 Fax
>
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