No Dial tone when you pick up the Handset

[smahalingam]

HI,

One of my Customer is having an issue with 7961 phones that is registered with CUCM 6.1.3.The issue might sound silly but still need some lights on this.

Issue:

"When you pick up the handset you hear nothing and when you depress the speaker button you get dial tone" We thought it was a bad-hook switch on 7961 and replaced with a new phone.The new phone worked fine for couple days and reappeared again.

Any thoughts and suggestions is highly appericiated.

Thanks,

simah.

[clileikis]

Hi Simah,

What version of firmware is running on the phone?  There are also a couple bugs that match or are similar to what you are experiencing: 

CSCsa93619 - 7961- Harware Issue- No dial tone when off hook

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsa93619

CSCsg83571 - No dial tone is heard after togglling the hookswitch in ring out state

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsg83571

HTH,

Chris

[smahalingam]

Hi Chris,

Thanks for the link and below is the versions that are running on the new-7961 Phone which has been recently replaced by initiating a RMA with Cisco.

App Load ID		jar41sccp.8-4-3-16.sbn
Boot Load ID		boot41.3-2-2-0.bin
Version		SCCP41.8-4-4S

Thanks,

Siva.

[acampbell]

Hi Siva,

When you lift the handset is there any signalling at all.

Does the LED light or does the little phone symbol beside the line button show any animation.

You may need to start taking CUCM traces and raise a TAC case.

Regards

Alex.

[smahalingam]

Thanks for all the input guys.

It was hardware failure problem.I Initiated a RMA with the phones that had the above issue and that tpk care of it.