You can also do it online and follow the instructions. The website walks you right through the steps very easily. From what I understand, you CANNOT switch back and forth between phones on one account, but I might be wrong.
I switch my phones a lot. As long as the rate plans are compatible and you are activating a phone that isn't currently active it is very easy
The only times I've had trouble is when switching to a dumb phone and back using the *228 method. For those I've started using the Verizon site. It does create some strange prorated billing issues when you have to add and remove data plans. I wish they would just let me keep the smartphone data plan on the dumb phone for the couple days that I am using it.
If you need to swap phones that are both active (1st & 2nd line) you will need to talk to a CSR. I haven't had that problem for a while because of all the phones I have laying around :).
I second that. I use the DX as my "regular" phone and I bought a Droid Pro for travel (for the same reason - got tired of my plan getting all discombobulated every time they took the data plan off/on). Just *228 (send), option 1 and you can switch back and forth between devices all you want. Only caviat is - and this has only happened to me once, is that it took a couple of hours for the phone to activate. You can get a temporary "global plan" as an add-on feature if you are traveling for less than 20 days, I believe.
Prefaced with the fact that, as I mentioned I use the X as my "regular" device, I find the screenon the Pro a bit small and I'm second-guessing myself whether I should have bought the D2 Global instead....