Thaitel is the first to offer free international voip phone calls to Thailand that we know of.  The free voip calls are limited in the time you can use them, but with Thailand usually costing quite a bit to call, the new service is great for anyone who wants to make up to a 2 hour call for free.

Calls between 3.00AM – 5.00AM ( in Thailand Time) are free.

So whoever you are calling in Thailand will have to wake up early

To start making calls just visit Thaitel and sign up for an account.  Keep in mind the voip phone calls are not free unless made between 3 and 5 am Thai time.