Upon arrival at the Phuket airport you will often find staff from TRUE(a real Thai mobile operator) literally handing out FREE GSM SIM cards along with instructions. You can add money to the account by buying a voucher at any 7-11 store and you will get 10 meg of data for free just for adding any value. International telephone calls are only 1. 5 to 3. 0 baht per minute, and local calls are only 1. 5 baht. There are many phone cards available and phone booths are in many places in towns.
The official language of Thailand is Thai, it is the principal language of education and government and spoken throughout the country. Thailand is also host to several other minority languages, the largest of which is the Lao dialect of Isan spoken in the northeastern provinces. And numerous tribal languages are also spoken. English is a mandatory school subject, but the number of fluent speakers remains very low, especially outside cities.
Internet cafés are widespread and most are inexpensive. Prices as low as 15 baht/hour are commonplace, and speed of connection is generally reasonable but many cafes close at midnight. If you plan to go online for a short time you should first ask if there is a minimum charge. Outside the most competitive tourist areas, free Wi-Fi Internet is not as common as neighbouring countries in many budget hotels and guest houses and they usually charge small fee for Internet by LAN or Wi-Fi even if you bring your own laptop. While Wi-Fi is commonly available in certain cafes and restaurants.