Landline Communication Plz Help Me To Write A Program In Any Language Such As C#, C++ Or Vb.net For Mobile To Landline Communication?

Plz help me to write a program in any language such as c#, c++ or vb.net for mobile to landline communication? - landline communication

For example, a mobile telecommunications company in the country, which can be executed, the line call ... with the programming language please help me now thank you