Yep, for free and for a limited time .. read on.. UnifiedFX has released a pretty cool tool called #MigrationFX for migrating old Cisco Phones to new. if you take into consideration the time taken to plan and swap phones accross this works out to be a very good solution.
the process is as simple as ordering new phones and distributing to users; no need to scan MAC addresses and allocate and configure for user and ship to THAT user. once user/s receive the phone, its as simple as unplugging the handset and using the same cable adding the new device. this then kick starts the auto provisioning process.
to see how this works see the following link
you can try out the product for free for upto 50 phones, by registering with them http://www.unifiedfx.com/migrationfx-lab-edition/.
and i know you are thinking, but you said for FREE.. and yep im coming to that, if your migration includes more than 100 phones, Cisco will throw this product in for free by using the following promo code L-CP-MGFX-PROMO= in the same TMP registration.
more information from Cisco on this promotion: http://refreshcollab.cisco.com/webportal/16/4/17/description