One main problem with T-mobile: you get charged for any calls coming to your cell when overseas even if you don't answer the call !!!
If you forward the calls from the cell to a US number, or a voice mail box,
but you opened the phone once when overseas,
all the calls will go to that country and even if your phone is off it will go back to the US, to the voice
mail box or the other number you asked to send it to.
You will be charged for that call international roaming !!!
I had that problem and had to speak to T-mobile for a few months until they gave me the money back.
I use other ways for that now, including sim cards from many countries and an unlock GSM phones,
internet numbers like GIZMO, and so on.
One good thing about T-Mobile is that they have customer care number in the US 505 area code which
is FREE from ovearseas, but not free in the USA. (use the 611 or 800 numbers).
I use that to call the tech help dest of T-mobile and forward the calls to a new number or the voice mail box any day I need it when ovearseas.
I also use grandcentral.com to send the calls to other numbers, even to my email account as wav voice message file.
when you forward calls from your T-Mobile number make sure you use the conditional or unconditional call forwarding correctly. They use special 500 minutes for the conditional and your regular minutes
to the other one.
If you forward the calls from the cell to a US number, or a voice mail box,
but you opened the phone once when overseas,
all the calls will go to that country and even if your phone is off it will go back to the US, to the voice
mail box or the other number you asked to send it to.
You will be charged for that call international roaming !!!
I had that problem and had to speak to T-mobile for a few months until they gave me the money back.
I use other ways for that now, including sim cards from many countries and an unlock GSM phones,
internet numbers like GIZMO, and so on.
One good thing about T-Mobile is that they have customer care number in the US 505 area code which
is FREE from ovearseas, but not free in the USA. (use the 611 or 800 numbers).
I use that to call the tech help dest of T-mobile and forward the calls to a new number or the voice mail box any day I need it when ovearseas.
I also use grandcentral.com to send the calls to other numbers, even to my email account as wav voice message file.
when you forward calls from your T-Mobile number make sure you use the conditional or unconditional call forwarding correctly. They use special 500 minutes for the conditional and your regular minutes
to the other one.