So, next month I am headed on a trip to India and wanted to use a local SIM in my new Note 3. Before going on I should relate my previous experience with my iPhone 4S. Verizon had told me that they had unlocked it for international use, so on my trip to China last year I went to a store and popped in a local Chinese SIM and it refused to work and kept displaying a message "this SIM is not authorized to work on this phone please contact Verizon wireless", it would not let me activate via iTunes which was the instructions I was given. In brief, the verizon "unlock" was worthless and was a lie, nothing was unlocked!! Now, I called Verizon again today and they say for the Note 3 an unlock is not needed as all 4G phones are unlocked by default. Can anyone confirm this? In addition, how does this exactly work? I have read some places that a phone using an LTE SIM will not work with a GSM (3g or 4g) SIM while other places say LTE and GSM SIMs are compatible with each other...which is true? When I land in India I plan to buy an Airtel 3G SIM and pop it inside, will it work out of the box? My concern is also with roaming. Once I remove the Verizon LTE SIM from the phone there is no chance for the phone to connect via International Roaming right?