by amatecki
How to use the SmsToolset library to send SMS over GSM network by using PDU format
by ShadowedR
A simple example of a C# Application interfacing with the Null Modem Emulator (com0com) driver to allow run time creation and configuration of Virtual Serial Ports
by ToughDev
Interesting findings about GSM SIEMENS TC35
by Shivachalappa Gotur
Detecting USB Modem Device using C#.NET