07-12-2012 07:09 AM - edited 03-16-2019 12:10 PM
Hi Gents,
I have a Problem with 7921 phones on CUCM 8.0. When the phone rings, i answer the call but i don't hear nothing for 10-15 seconds. After this time i can talk normally with the caller. Outgoing calls are no problem just incoming call have this issue.
I Hope you have some ideas
Thank you
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07-12-2012 07:10 AM
Update phone firmware.
07-12-2012 07:18 AM
I've tried three different kinds of firmware
07-12-2012 09:04 AM
That is exactly ?
07-16-2012 03:18 AM
Hi,
We had bother with 7921s a while back
Look at this link you may find some answes here
Regards,
Alex.
Please rate useful posts.
07-16-2012 03:54 AM
Thomas
Can you kindly let us know the three variants of firmwares that you are currently running.
Regards
Niket
Kindly rate all useful posts!!!
07-16-2012 06:36 AM
I recently have a similiar problem, look like you are having a delay with your call incoming call signaling.
Could you please describe your topology?
First of all, try to check if you have packet loss in: Phone port and CUCM Server port, this can be causing this issue.
Regards
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