I have a customer the wants to upgrade the CM versio to 7.0(1). On the cco i fount that to do that i need to go first to 5.1.3 and then to 7.0.1.Doing this i will run two firmware upgrade on the phones. Is there any way to make te upgrade and only make one firmware upgrade.
I was thinking in the folowing procedure:
1 - Install the 7.0(1) firmware file on the 5.1.2 CM.
2- configure on all the phones the new firmware in the firmware load field on the phone configuration.
3- Make the CM upgrade to 5.1.3, at this time the callmanager is with a diferente firmaware version but the phones will not upgrade.
4- Upgrade the CM to 7.0(1)
5- Verify that the firmware is the same on the phones.
6(optional)- Remove the firmware load field on the phones.
Can any one tell me is this a good procedure os if there is others to preform this upgrade.