We are looking for someone who has already developed a combination of the following application: SMS 2 WAY SMS MMS SMS API WAP Push WHATSAPP APPLICATION We want all this software to be combined as one application. The SMS, MMS & WAP PUSH MUST be SMPP Sending Gateway. It will be a fully web base application, which allows customers to sign up an account, automatic account activation via email, visa/master card enabled to allow clients purchase credits online (this script will be provided for you separately). The application MUST also be able to send 2 WAY SMS. Full Admin control. The application MUST also support API. The system MUST have all the necessary function for a whatsapp application, which includes, validating mobile number to be sure they have whatsapp, enable customers to reply back to their whatsapp messages. etc.