Complete these steps in order to migrate the device profiles from the 7960 IP phone to the 7970 IP phone.
Access the Bulk Administration Tool (BAT) and choose Configure > User Device Profiles (UDP).
Click Export and name the file.
Choose All User Device Profile Details, select the phone type, and click Export. The file is then placed in the C:\BatFiles\Export\User Device Profiles directory.
Make the small changes to the user device profile that points to xyz.
Once completed, place the new file in the C:\BatFiles\User Device Profiles directory.
Go to the BAT tool and choose Configure > User Device Profiles (UDP).
Choose Insert User Device Profiles and scroll down for your file at File Name*.
Choose All Details, scroll down for the xyz, and click Insert.
For more info:
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_administration_guide_book09186a0080530796.html