Currently we are running CME version 11.5 but want to upgrade this to get functionality for 8845 phones. The upgrade/install guide doesn't really explain well how to do the upgrade but it talks about installing the new version.
If I upgrade the IOS to the required version do I then just extract the tar file onto flash and that is it? Does it overwrite the old CME or is CME upgraded with the IOS and I just need to install the new firmware files?
The CME version is dependent on the IOS version
Use the feature navigator to select the correct IOS for CME 12
After upgrade IOS do "show telephony-service" or show "show voice register global " to see the CME version
IOS 15.7M is compatible with CME 12.0.
You will need to copy the ios on to the routers flash. If you have enough flash memory
you can have both the current and new ios in flash and then boot of whichever ios you prefer.
With every version of CME you need a new install the correct GUI version.
You will also need to check phone firmware to see if it is compatible,If not then you will need
install that in flash and use the load command under telephony-service.
Some useful urls.
Documentation needs updating by Cisco as it doesn't include cme 12.0
I read the title again and I think we are stuck in the same place.
I need to upgrade CME to 12.0 from 11.6 to run 8821 phones natively but my CUE is running 8.6.12.
Cisco's CUE compatability matrix goes as far as 11.7 in Table 5 but does not mention 12 any where
so I don't know if I can use CME 12
I have opened a PDI case and awaiting a definite answer.