We are looking to build a simple Windows application ( [login to view URL] or Visual Basic ) contains a web-based interface , simple SoftPhone.
So when the user uses the application, every changes he made in the application, it will be done also in the original web at the same time.
The softphone will be linked to a PBX system so if the user want to make a call, he will use the softphone from the application and also he can receive his calls using the same application.
We already have our SIP phone code based on VB and C#