cisco 7861 and CUCM 8.6.2

[Pavlo Zabudskyi]

IP phone 7861 (sip78xx.11-0-1-11) registers on CUCM 8.6.2 and after some time unregisters. Then registers again and so on.

Logs say someting like that

2651 NOT Dec 21 18:20:10.981122 JAVA-Thread-6|JPlatUi:setUnregReason - old-unregister-reason:107, new unregister-reason:24, cc-server-type:0
2652 NOT Dec 21 18:20:10.981672 JAVA-Thread-6|JPlatUi:isThisFailureFromNewCause - old unregReason =107 newUnregReason=24
2653 NOT Dec 21 18:20:10.990600 JAVA-Thread-6|JPlatUi:setUnregReason - set to unregister-reason:24
2654 NOT Dec 21 18:20:11.111551 dgetserver(3908)-dgetserver.RESULT [_0_  [PASS] No error 
	]
2655 NOT Dec 21 18:20:11.136692 downd-SOCKET accept errno=4 "Interrupted system call"
2656 NOT Dec 21 18:20:11.265518 JAVA-Thread-6|cip.sipcc.SipEnhancedAlarmInfo:setLastDeregistrationReason - new unreg-reason=24(LastTimePhoneRegRej), old unreg-reason=107

and that

Time zone data download failed

What can I do to solve this problem?

[Manish Gogna]

Hi Pavlo,

I would suggest a restart of the tftp service followed by phone reset. If the issue persists please provide a packet capture from the phone.

Manish

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[Aman Soi]

Hi Pavlo,

In addition to what Manish has said, you can also have a look into the link since error snapshot talks about Time zone data download failed

http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/118744-technote-cucm-00.html

Avoid Problems Related to DST Changes on CUCM and Cisco IP Phones

In order to avoid known problems with DST update changes on phones and CUCM systems (from Version 8.X to Version10.5), remember these concerns:

• You must keep your CUCM system updated with the newest release of DST .cop file available on Cisco.com.
  
  
• Every time you update the CUCM system with the new DST .cop file, the tzdata jar files also must be updated. In order to avoid any compatibility issues with phones that run old firmware, it is highly recommended to keep the system updated with the latest device pack release.
  
  
• Every time you see the "Time zone data download failed" message in the phone's status messages, you must investigate because it is highly possible that the phone will have problems with the correct time display and will run into problems during the DST update.
  
  
• Be aware that Cisco cannot predict when DST rules will be changed, and this is why there is a need to release and install DST .cop files every time there is an announcement that rules are changed

regds,

aman

[Pavlo Zabudskyi]

Hi,

tftp restart and phone reset don't resolve problem. The problem is: Phone can't register with Publisher (first in CM group) and registers with Subscriber. Then phone detects that Publisher is online and try to register with it. But it fails and registers with Subscriber and so on.

What can I see in capture? I don't want to post it in Internet. Can I send it to your e-mail? 

[Manish Gogna]

Are there other phones registered with the Publisher server? If not , can you check if callmanager service is running on the publisher.

Manish

[Pavlo Zabudskyi]

There are registered a lot of devices with both Publisher and Subscriber: 79XX phones, CIPC, Cisco jabber, 3rd party SIP phones, etc. 

There are device packs on both servers with latest firmware for 7861.

[Manish Gogna]

You can check in the captures if the phone is sending a register request to Pub and if Pub is responding with a 200 ok. If not then this should be investigated on cucm side, you may contact TAC if you do not want to share traces over support community.

Manish

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[Aman Soi]

Did u ever restart your CUCM servers after adding Device pack?

regds,

aman

[Aman Soi]

Hi Pavlo,

Did u upload any device pack on both CUCM servers and rebooted the servers as well?

just refer this link

http://voiceonbits.com/2014/06/17/scenario45-7841-sip-phone-in-registration-loop/

regds,

aman