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7975 IP phone keeps rebooting

We just brought a new 7975 IP phone and the phone keeps rebooting. checked the firmare version and the image on callmanager. not quite sure why this is happenning. BTW, the CCM version is 4.2Sr3a

1 ACCEPTED SOLUTION

Accepted Solutions

Re: 7975 IP phone keeps rebooting

can u answer my second question. Are you able to add a device as 7975 ? or have u added this phone as 7970 ?

6 REPLIES

Re: 7975 IP phone keeps rebooting

What are the sequence of display msgs u get on the phone ?

Are u able to add the phone in Callmanager as a 7975 phone?

Re: 7975 IP phone keeps rebooting

on the phone downloading image screen , it comes up with "auth fail" and before it goes through the reboot phase it comes up with "Registration rejected : error mismatch"

Re: 7975 IP phone keeps rebooting

can u answer my second question. Are you able to add a device as 7975 ? or have u added this phone as 7970 ?

Re: 7975 IP phone keeps rebooting

I've added the device as a 7975

Re: 7975 IP phone keeps rebooting

Have you tried resetting the phone to factory defaults..

what is the default firmware on the phone (you can go to settings-> option 5-> option 3.

Re: 7975 IP phone keeps rebooting

looks like it worked the second time. Don't quite know why....but it worked!!! thanks

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