My application sends out text messages to employees selected to work overtime. This is coming out of my PowerBuilder application (running on Windows Server 2008 R2) using a 3rd party company to provide the SMS capability. I'm currently using a company called Clickatell and I'm not happy with their either their web portal and reporting capabilities or their support, which is all on-line, no ability to call anyone directly. Does anyone know any other companies that provide a similar service with phone support?