Hello,

Wanted to find out if i upgrade my CME from its current version (flash:c2801-spservicesk9-mz.124-15.T10.bin) to version 4.3 will i loose the phone licenses in the process?  I need to be able to support 7937 ip phone which the current version can't seem to support despite putting in its phone loads. Basically i just want to know , if there is any special requirement or limitation to upgrading what i currently have.

please help,

urgent.