If you plan on going overseas with your phone there are many things to consider and do before you go.
1) Find out your phones technical capabilities. All T-Mobile phones operate on the 1900 MHz band. However, many of the phones we sell are capable of using other GSM bands such as 850 MHz, 900 MHz, and 1800 MHz You need to find out what bands your phone supports and if it will be able to be used where you are going EXAMPLE.... your phone can use 850, 1900, but the country you are going to uses 1900 and 900 you will only be able to roam when the 1900 is supported but not where it is just the 900
2) Determine which bands are available in the country/countries you are traveling to: Go to T-Mobile.com
From the Coverage menu, select International coverage.
Click T-Mobile International Coverage
Click to select the country to which you are traveling
Click View a detailed coverage map for this country.
View frequency information from the table below the map
If any of the GSM frequencies listed are the same as your device, you can use your phone on that carrier
while abroad.
https://my.t-mobile.com/plan/international/Regions.aspx3) Find out how much it will cost you although the initial world class roaming feature added to you account will not cost anything (it needs to be added to each line being used overseas) the actual cost is charged when air time is used while registered to the foreign network. Each country charges a different per minute amount to roam on them to find out what each country charges you can go to the place where you found the roaming band info at t-mobile.com
From the Coverage menu, select International coverage.
Click T-Mobile International Coverage
Click to select the country to which you are traveling below the map will be the per minute
voice charge as well as messaging and data charges for that country.
https://my.t-mobile.com/plan/international/Regions.aspx4) calling when international can be confusing at times always remember to put the + sign in front of the number you are dialing. Many phones have it piggy-backed with either the *, 0, or # keys.. just press and hold it until it appears … EX… if you are in Italy and you want to call your wife who is with you on vacation you would Dial +1(area code) number …+1-234-567-8900 the same if you wanted to call you friend back in the states … it is a U.S. number and (1) is the country code for the U.S.
Now to help our customers with the same great (free) technical support as we always have T-mobile has set up a international customer car number Dial +1-505-998-3793 (this is a FREE call from your T-Mobile phone) or 001-505-998-3793 (from a landline).
How do you get charged.....
when you phone is registered to an International network and powered on.. you get charged per minute for your calls (sorry there is not international rate plan to buy) also if you phone even rings you get charged for the delivery of that call (1 min) so if you don't want to get unexpected charges you can keep your phone off until you are ready to use it ... since the charge is from the internationla carrier it can take up to two billing cycles for the charge to hit your account
VOICE MAIL ........
Domestic & International
Option 1: Calling voice mail from your mobile phone
To call voice mail from your mobile phone, perform the following steps:
1. Press and hold the 1 key or dial 1-805-MESSAGE from your mobile phone. If dialing from another country,
type a plus sign first (+ 1-805-MESSAGE).
2. Interrupt your greeting by pressing the Star (*) key.
3. When prompted, type your password. This is the password you selected when you first set up your voice
mail.
Option 2: Calling voice mail from a landline
NOTE: You will be billed applicable long distance fees from the landline carriers in the area you are located.
T-Mobile will not credit these landline charges.
To call voice mail from a landline, perform the following steps:
1. Dial your mobile number from a landline.
2. Interrupt your greeting by pressing the Star (*) key. You may need to press the Pound (#) key instead.
3. When prompted, type your password. This is the password you selected when you first set up your voice mail.
NOTE: If your handset is powered on and/or you are registered on another mobile company’s network, please be aware that call delivery fees will apply. To avoid these fees, power off your handset before calling your mobile number from a landline. Even then, it may take up to an hour for the mobile company to drop your registration.
Option 3: Calling voice mail from a landline by dialing 1-805-MESSAGE
NOTE: You will be billed applicable long distance fees from the landline carriers in the area you are located. T-Mobile will not credit these landline charges.
NOTE: You will be required to type your mobile number.
To call voice mail from a landline by dialing 1-805-MESSAGE, perform the following steps:
1. Dial 1-805-MESSAGE from a landline.
2. Type your 10-digit mobile number.
3. Interrupt your greeting by pressing the Star (*) key. You may need to press the Pound (#) key instead.
4. When prompted, type your password. This is the password you selected when you first set up your voice mail.