cisco Ip Phone 7942 issue

[lruberintwari]

Hello;

I have one of my Ip phone (cisco ip 7942) which is sitting on cisco screen ( copyright 2002 - 2007) and can't not finish this process. I need to know how i should fix this and what is the root cause of this. Other Ip phones are working perfectly without any issue. The call manager ( C3900 software (c3900 - universal k9-M) version 15.1 (4)M2,release software (fc1). Thanks for your support.

Regards,

[Gordon Ross]

Have you tried a factory reset of the phone ?

This describes the process

https://supportforums.cisco.com/message/1073269#1073269

GTG

[lruberintwari]

Hello Ross,

Yes of course i have tried several time to reset the Ip phone but still having the same issue. Other steps to proceed?

Regards,

[Joseph Martini]

If you're going to need root cause take a packet capture to see what the phone is or isn't sending and what it is or isn't receiving.