6921 stuck on loop resulting with no dial tone

Forbes Jenalyn Rose · ‎04-26-2010

CISCO 6921 phones have the message as per “phone no1.jpg”, rather than the more common “missed call” screen.

If the details soft key is pressed it then loops between “phone no2” and phone no3”. Under all circumstances picking up the handset does result in a no dial tone. Pressing the speaker button gives a dial tone, after which the handset works as expected. Please help!!!!

appserv · ‎10-12-2010

Did you ever get a resolution to this? I've got one 6921 exhibiting the same symptoms...

Cedric Van Labeke · ‎10-13-2010

Which firmware is this?

Try the latest 9.0 release available on CCO. There's been a few defects fixed where a few of them have to do with missed calls and dialing.

Steven Holl · ‎10-13-2010

Agreed. This sounds like a phone firmware issue. If the issue is still seen on the latest release, open a TAC SR and it can get looked at in more detail and a potential bug can be filed.

appserv · ‎10-13-2010

Thanks - in my instance i'm running 9.0.3 which is the latest.

Will go with the TAC option.

Cheers.