I just want to about how to send sms via mTalkz api? I have used twilio from last 2 years but not so easy to use and very high cost. Finally I have decided to use mTalkz SMS API. So how to send sms via mTalkz api?

I have install the "twilio" api in salesforce and I have register twilio phone number. How to receive the SMS details and how revert back the conformation.Which class should be call and where should I give the accoutsid,authosid and twilio phone number in Installed Package from Sandbox .