The Verizon rep you spoke with was wrong. Cell equipment does not communicate with a phone using a MAC address. It uses the MIN and MDN. Don't believe me? Grab another VZ phone, grab the MIN and MDN of your current phone, program that in the old one (using the same instructions I mentioned above) and power both on and put them next to each other, watch what happens.
When you dial *228 it automatically does what I gave you the instructions of above, program your MDN and MIN.
Keep in mind the MDM is your phone number and the MIN is the Mobile Identification Number. If a tower sees two phones trying to connect to it with the same MDM and MIN it won't know which one to service and will attempt to service both.
A MAC address is a Manufacturer Access Control address. It's a unique address assigned to ALL (and this is the important part) network devices. If your phone doesn't have a WIFI chip (or doubtfully a NIC card) it won't have a MAC address.
neonerz: I trust your expertise. The fact that my OG Droid has been powered off and in a drawer for a week (not even a battery in it) should negate the need to program the MDN and MIN...right? If both devices were competing, having one off the network should eliminate the issue. After doing so, my D3 is still continually dropping to 1x even when within two feet of the NE. #48 confirms that the NE recognizes the D3. I am still leaning to the theory that this is a D3 radio issue.
Your thoughts and suggestions are appreciated.