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New Member

7975 phones Auth failed

Dear team,

We have an issue with 7975  phones in CUCM 9.1.  Phones cannot upgrade to the new firmware throwing ‘Auth failed’  message. Please advise the solution?

Regards,


5 REPLIES

7975 phones Auth failed

Your phones might have been on a very old version of firmware. In which case, you'll need to upgrade them to 8.5(2) first.

GTG

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Please rate all helpful posts.
Hall of Fame Super Silver

7975 phones Auth failed

+5 for Gordon, this has been asked many/many times, you should be able to find detailed solutions by simply searching "auth failed" on this forum.

HTH,

Chris

New Member

7975 phones Auth failed

@ Gordon Ross

I have 1100 phones and can not upgrade all of them?

7975 phones Auth failed

What version of firmware do they currently have? (And what version of CUCM did you have before?)

GTG

Please rate all helpful posts.

Please rate all helpful posts.

7975 phones Auth failed

Hi Waqas,

Please refere below link and it might be helpful to check

https://supportforums.cisco.com/docs/DOC-11587

Regards,

Nishant Savalia

Regards, Nishant Savalia
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