SingTel Prepaid Card - Roaming Overseas

The question you may have is whether roaming is supported? Yes! you can use the prepaid card overseas. What's more there's no additional charges to let you use it overseas, and by this, I mean no roaming subscription costs.

Roaming Coverage
You can pretty much enjoy roaming using SingTel prepaid card in any country (I haven't done the count but I put it above 120 destinations)

How do I make and receive calls and SMS?
Sending and receiving SMS is very much the same experience you have while using it in Singapore. So is it for receiving calls - you just answer it.

But outgoing calls is made using a call back service. To put it simply, you need to know how to dial properly.

You need to dial according to this format - *131*(country code)(phone number)#. The starting string (*131*) and the ending character "#" is important. So is the country code and mobile number of your friend you are calling. One problem you may have is all your numbers are in the phonebook. Some steps you can try to make this easier
a. make use of the SIM tool kit option. Using a Nokia N98, I can access this via Menu->Tools->SingTel Menu->Prepaid GD121. This should rightfully allow you to pick up a phonebook contact and help add in the dialing codes ... though I couldn't get it working.

b. dial out using a phonebook contact and stopping it. This should come out as an entry on your dialled numbers list which you should be able to edit and add in the format.

c. rely on your good memory =) You need to remember the number to dial (country code as well) + the *131* code.

Minimal Balance to maintain while roaming
Keep at least S$8 if you want to use it.

Checking Account Balance
Dial *133# to know how much more you have left.

This pretty much sums up the key parts you should know to get you started.