Calling America from Thailand can be done in several ways, depending on your budget and the quality of the connection you need. The most common methods are using a calling card, using a mobile phone, or using a VoIP service.
Calling cards can be purchased at most convenience stores and newsstands in Thailand. They typically come with a set number of minutes that can be used to call international destinations. The rates for calling cards vary depending on the provider and the destination you are calling.