05-31-2014 11:31 PM - edited 03-16-2019 10:56 PM
1) I have 6921 with the shipped firmware ver 9.3. I have the call manger 7.1.3 with the defaul load firmware of 8-5-3-0.However phone is not taking the default load 8-5-3-0.Appreciate your suggestion
06-01-2014 02:08 AM
Hi,
Please remember that after you upgrade from an earlier firmware release to 9.1(1) and for subsequent firmware releases, you can upgrade or downgrade only to signed firmware releases. This is mentioned in the release notes for 6900 series IP phones.
HTH
Manish
06-01-2014 03:53 AM
Thanks for reply
Generally ip phone with higher firmware can take the lower default firmware version in Call manager?
06-01-2014 10:06 AM
Hi,
Yes, 'generally' it can, but this is a special case.
HTH
Manish
06-02-2014 10:12 AM
I would like to know why the ip phone with the higher firmware version(default shipped version) won't take lower version from call manager
06-02-2014 10:18 AM
Due to HW revision, if the phone requires a minimum load to work, it is clearly noted in the shipping box, and on a sticker on the phone itself. There's no way you can load an older FW when that happens.
06-05-2014 02:15 AM
Thanks for the reply. What would be noted on shipping box. On the 6921 box I can see Rev: J0. Is that the one you are talking about. Can you please give more info
06-05-2014 09:01 AM
What FW is the minimum version to use the phone, that should be on a sticker on the shipping box, and on the phone itself.
06-25-2014 11:20 AM
I am facing similar problem.
1. Our CUCM version is 7.1.3
2. Current running old 6921 IP Phones ( firmware version : 9.0.2.0 )
3. Newly shipped 6921 IP Phones registers , but not showing missed call in Call records ( firmware ver. : 9.3.1.3)
From the Downloads i found that CUCM 7.1.3 Supports maximum up to 9.2(1) .
How should i Proceed to get the new phones to show missed calls in call records ?
06-25-2014 11:20 AM
I have no idea where you're getting you can only use FW 9.2(1)
6921/6941/6961 SCCP IP Phone Load Signed COP file - Compatible CUCM Versions: 7.1(5)+
cmterm-69xx-SCCP-9-4-1-3SR1.cop.sg
6921/6941/6961 IP Phone SIP firmware - Compatible with CCM Versions: 7.1(5) and above
cmterm-69xx-sip.9-4-1-3.cop.sgn
06-25-2014 12:09 PM
But as i have mentioned , My CUCM version is 7.1.3 and not 7.1(5)+ .
Hence i think up to FW 9.2(1) is possible. I found it from the download section description. 9.2(1) is the highest version supported with 7.1.3
Kindly Give ur Suggesions.
@ Manish Gogna : Can you please share ur thoughts..regarding this ? what is the upgrade path for this .?
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