7985 Phone Keeps Restarting

[LVBuckner]

Hello, I'm testing out CUCM 8.6.2a in my lab and have run into a curious bug.  I have statically configured a 7985 video phone to register with my lab ccm, and the phone keeps restarting.  I have added the latest firmware to CUCM for the 7985 phones, however the phone does not reach the TFTP download screen.  I have checked and re-checked the ip settings as well as the switchport confi,g and switched patch cables.  None of those items seem to be the problem. In addition, I have 3 statically configured 7975 phones that work without any issues.  Any suggestions?

Thanks

LB

[ronpatel]

Hi,

Try to do erase configuration in ip phone and do the above process again. Also restart your CUCM tftp services.

Regards

Ronak Patel

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[LVBuckner]

Ronak,

     Thanks for your reply.  Unfortunately, I have done this several times with no change. I will open a TAC case to see if this is a bug of some sort.

Thanks

[paolo bevilacqua]

Can you ping from CM to phone ?

[LVBuckner]

Paolo,

     Thanks for your reply. Although the phone is stactically configured with an IP, it is not pingable due to the constant restarting/resetting.

[paolo bevilacqua]

If static doesn't work, try dhcp.

[LVBuckner]

Thanks, that will be my next step.

[LVBuckner]

Tried DHCP, still having the same issue.  There appears to be an issue between the 7985 phone and CUCM 8.6.2A.