Randy is holding his new GSM phone to the side of his head.
You think that's more secure than his GSM phone?
The GSM phones may regard some phone numbers with one or two digits as special service codes.
It might be impossible to make an emergency call to numbers like 03 with a GSM phone.
GSM mobile phones may accept a different number, such as 999, 000 or 911, to reach the emergency services, depending on the firmware.
The place to start is with a GSM phone.
Once you have a GSM phone, you need to make sure that it is "unlocked."
However, you can travel and use their (GSM) phones in other countries.
Apple had to make it a GSM phone, since this is what 99% (or greater?)
Verizon isn't going to sell you GSM phone with their two-year contract.