Configuring Peer Firmware Sharing
By default, Peer Firmware Sharing is not enabled. To enable peer firmware sharing for a few phones, enable Peer Firmware Sharing settings, from Cisco Unified Communications Manager, choose Device > Phone > Add New. Then, from the Phone Configuration window, choose Peer Firmware Sharing from Product Specific Configuration.
To configure Peer Firmware Sharing for many phones, enable Peer Firmware Setting in the Phone Template window of the Bulk Administration Tool. For details, see the Cisco Unified Communications Manager Bulk Administration Guide.