To setup your Exotel Account , the first step is to get an Exophone ; Given below is the 3 step process to acquire one(remember you would need Rs 500 or more in your account to get an Exophone)

Step 1: Click on the Exophone tab in your Exotel Account

Step 2:- Click on New Exophone button

Step 3:- Select your region and choose you Exophone

Step 4:- Click on Purchase and then Select your Flow

And you are set to go :)