SIP Based Client – Server VoIP application for windows. Development required from the client side only, while the server side will be Asterisk/freePbx server.
I have done SIP client in the past, several years back. But now there are lot of free SIP clients available.
I hope you will provide the Asterisk Server for integration / testing. Let me know your thoughts.
Good experience in developing machine interfaces, worked with ADP for developing time attendance machine interfaces and hitachi medical insttument interfaces