It's on a different frequency and uses a different communication protocol.
There are a few Verizon phones that are "world phones" meaning they can operate on CDMA and GSM, so you can take them out of the country with you.
I've brought my CDMA phone with me a few times and more or less got by on wifi for data needs (I wasn't going to pay the ridiculous international call fees anyway, last time I did that with my iPhone a 20 minutes of calltime and a few emails cost me over $150!)
There are a few Verizon phones that are "world phones" meaning they can operate on CDMA and GSM, so you can take them out of the country with you.
I've brought my CDMA phone with me a few times and more or less got by on wifi for data needs (I wasn't going to pay the ridiculous international call fees anyway, last time I did that with my iPhone a 20 minutes of calltime and a few emails cost me over $150!)