base on the following link, this feature will be activate on Call Manager under : "For Cisco Communications Manager 5.0 and later, enable Peer Firmware Settings in the Phone Template window of the Bulk Administration Tool." while under ver. 5.1.1 this feature doesn't apperar...
I have looked into the new functionality and I beleive it was actually added in the release of the CCM 6.x train (not 5.x)
Peer Firmware Sharing
The Peer Firmware Sharing feature adds support for image upgrade optimization for the Cisco Unified IP Phones. When enabled on a root IP phone, Peer Firmware Sharing designates the phone to make a request for an image file. This establishes a transfer hierarchy and transfers the firmware image file from the root IP phone, down to the other IP phones in the hierarchy.
Peer Firmware Sharing also allows for the designation of a remote logging machine, a Log Server, for debugging Peer Firmware Sharing firmware image update logs that are sent to the remote logging machine.
Peer Firmware Sharing remains disabled by default. To enable peer firmware sharing to upgrade firmware for a few phones, in Cisco Unified Communications Manager Administration,
choose Device > Phone > Add New. Then, from the Phone Configuration window, choose Peer Firmware Sharing from the Product Specific Configuration Layout section.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...