Cisco 7821 Firmware Migration Master Manual - Page 26

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Cisco 7821 Firmware Migration Master Manual

Appendix C: Bulk Provisioning (Unified CM-Based Method)

The following steps will convert multiple phones from Enterprise to MPP firmware.
Prerequisites
•
Set up the DHCP option and file server for MPP.
•
Upgrade the enterprise phones to firmware version 12.5 with Unified CM.
Example: sip88xx.12-5-1SR1-4
1.
Upgrade the enterprise phones to the E2M migration load from the Unified FM by specifying the load name (for example,
sip88xx.TLexE2M-11-2-3C12) and load server (for example, 10.23.45.67).
2.
Allow the phones to boot up with the E2M migration firmware and find DHCP option 160.
•
The device requests $PSN.xml (for example http://10.23.56.67/8851-3PCC.xml
•
Each phone replaces the $MAU macro with its uppercase MAC address to retrieve the device-specific license file to unable
the upgrade to the requested MPP firmware.
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