I was just following the DST steps to upgrade my 7941/7961 phones registered on CME 4.0(3). The phone loads currently are version 7.0(3.0S) In accordance with
Cisco Field Notices 62686 and 62666, I need to upgrade these to 8.0(4)SR3A.
I have never updated phone loads before, and would like guidance and
instructions on how to perform this upgrade.
I had three further questions regarding this case.
(1) Is it possible to upgrade just one phone so that we are able to test it?
(2) Does the CME Router need to be reloaded?
(3) Do the phones need to be reloaded manually?