Working on a VOIP chat program (client and server) in VB , and which is running fine. I used winsock control with TCP config.
Multiple user can connect to the server (which is listening to a Static IP) and invite other for a talk session.
The only (and big) problem that the application facing when a client is running
- in a proxy network
- behind a firewall/Router.
Though it can communicate to the VOIP server application using the static IP but it is not able to connect/invite other client (also running in a LAN).
How to solve the problem? How to use winsock in for Proxy authentiation?
Also is there any code to use port 80 (by subnetting) fpr TCp data exchange?