There is one other thing to keep in mind. Part of the stipulation to the sale of the 700mhz spectrum VZW uses requires the network to be open. In other words, as long as the phone supports the correct CDMA bands, Verizon cannot block activation. I am sure they will try... and I am sure the complaints will start pouring in to the FCC. The same thing happened when they were pushing to block wifi hotspots and tethering.
Rumor has it (and it's still just a rumor) that the 950/XL will have those bands disabled, but I think Microsoft would be shooting themselves in the foot if they did that. They should just leave the bands enabled and let the customers who want the phones do their legwork with the FCC.
They can't and won't block anything. However, there's only one of me to run around responding to this FUD that keeps getting repeated, so I'd really appreciate it if more people could pass this around and help me combat it. *phew*
Asian carriers have been using CDMA on SIM cards for years. Long before VZW did. I've run into foreign devices that work just fine on VZW. As long as they support all the technologies in question, they are good to go. I ran into three asian devices last week that did not come from our network.
HOWEVER, if you try to activate an IMEI that is not from Verizon on a fresh SIM, the billing system will not understand how to provision it. In order to activate the device, you will need to input an IMEI of a device with similar features on the switch side as the one you are trying to activate. (So for example, if you've got some sort of WP "global" phone that supports everything, don't try to activate it using an iPhone's IMEI or the voicemail may have issues.) The IMEI may come from a device that is already in use, it will not harm the service of the person using it. (So, you can use one from a friend's phone.) For WP devices, you'll want an IMEI from a WP or Android device. You may also need to take VoLTE into consideration, as newer WP devices support it.
Another consideration is you will have to have the "provisioning" IMEI on hand for reps to perform calling plan changes for you. (Alternatively you can just stick the SIM back into a verizon device and you'll be able to do it from My Verizon.)
Once everything is provisioned, stick the SIM into the device you want to use. It should program itself, report the correct IMEI to the switch, and be good to go.
I CANNOT REPEAT THIS ENOUGH!!!!!!! The ONLY ONLY ONLY ONLY ONLY IMEI "blocking" of any kind on VZW is the lost/stolen list. And you'll know you're being blocked, because it'll suspend your line if you try to use a stolen device. There have been no reports of people being suspended from Verizon's service just for getting experimental in what kind of device they stick their SIM in.
