6495 issue after CUCM upgrade from 8.0(3) to 9.1(2)
we need urgent assistance for and issue regardinfg 6495 ip phones.
After and upgrade from 8.0(3) to 9.1(2) CUCM, all devices registered in new version, but 6495's. They seem to register but after a short time (no more than 10 seconds) they spontaneously resert and re-start registration, to reboot again at the end, and so on.
6495 are configured as SCCP devices and firmware is 188.8.131.52 SR1.
Shall we upgrade firmware as well? Which version? Any suggestion?
The above link indicates there is no device pack available for 9-3-3 firmware of Cisco Unified phone 6945 for CUCM version 8.0.3
Device pack for firmware 9-3-3 for 6945 phones is required as per release notes.
Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Firmware Release 9.3(3) supports Cisco Unified Communication Manager 7.1.5 and later. Before deploying the 9.3(3) firmware, the Cisco Unified Communications Manager must be updated to the latest device pack.
Thanks Aman this what i did yesterday, after a few test, finally I upload to firmware 184.108.40.206 and now all 6945 phones are working. The only problem was that for a proper firmware download to the phone from server, we were forced to shutdown and power up server.
Now I have another issue with 2 7925 phones.
I was told that they loose network connection or AP association (it did not happened with CUCM 8.0(3)), and they are not working. There are as well 2 7921 working with no problems. All 792x have the same firmware 220.127.116.11
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