Hello, I'm an experienced developer who works primarily with Asterisk and GSM technologies. I've setup different communications systems including VoIP reselling services and SMS gateway services. I've developed for my customers platforms to send and receive SMS messages using different protocols, some of them with a public API to allow their own customers to use their service. I could help you with the configuration of this card and with the development of the API. Please feel free to contact me before considering my bid so we can further discuss this project. Best regards, Emanuel.