How to buy the cheapest calling card in thailand

If you want to make a contact with some of your families ,friends and etc. you may want to buy some of the cheapest and easiest way phone card to talk with them and here is some very useful information links for the visitor to check out for the cheapest calling card service in thailand and below are some brief information for the card
iTalk - International Calling Card

Cheapest International calling card calling from Thailand to Worldwide Only 0.25 Baht/Min & Call to Thailand only 0.49 Baht/Min
Features:

Call To Worldwide starting 0.25 Baht
Call To Thailand starting 0.49 Baht
Auto Recharge : Convenient to recharge
iTalk Mobile : 3 in 1 Feature, Make it easy !
Caller ID : No Need to remember PIN no.
Speed Dial : No Need PIN no. & Destination no.
Call Back : Automatic call back service
Collect point,Redeem reward
Special Money Back Guarantee
No Minimum Rounding
No Hidden Fee
No Expiration Date
Premium quality guarantee !!
Can use with any SIM card, No need to change SIM
Compatible instantly with any Mobile/Home Phone
for more information include online order you can follow on the link belows