This service only works for SingTel customers while roaming overseas (except in Malaysia, Vietnam, India and Taiwan).

Enjoy great savings on roaming calls with GD121. Just make a call while overseas and you will be asked to use the service automatically.

Refer to http://tinyurl.com/gd121info for more detailed information.

此服务只适用于电信客户漫游时海外（除了在马来西亚，越南，印度，中国台湾）">。

享受很大的节省漫游电话与gd121。只是打个电话，而海外，你会被要求自动使用服务">。

是指http://tinyurl.com/gd121info更详细的信息">。