Click-to-call Module for opencart.

Hi, i am looking for opencart developer who can develop click -to-call module based on supereceptionist.in. API details are given below. [login to view URL] Funtionality will be move ahead like this : 1) A Small bar (like chat window in many website) will be sticked to browser which will be same to all page. ->> if the User is Registered --> he can click on it and the Number registered in the database will be shown in the box and button "call" will be available. -->> if the User is not Registered --> he will be asked to Register or Login with Facebook to use this feature. (login with facebook Module is already installed you can use it"