SMSEagle

SMSEagle is a hardware-based SMS gateway. It can be used to send and receive SMS messages cheaply as well as to control servers and services with alerts and network monitoring features. To set it up, users have to buy SMSEagle, insert a SIM card, and connect it to their computer network. The SMSEagle API allows users to use SMSEagle to send or receive messages from an external application or system.