We are a small IT company and we would like to start providing VOIP service to our network and support customers.
We have a good Linux knowhow as we provide Linux solutions since many years. However we don’t know so much about telephone technology yet.
We have already installed and configured an asterisk 1.8 which is working as a VOIP server.
Now we would like to go one step further and connect the server to the telephone network through Analog or ISDN and become a VOIP provider. Can someone tell me where I can find information on how to configure a server to receive calls directly instead of using a VOIP provider.
I would like to know which applications have to be used to receive calls directly or even better if there is a tutorial or how-to about this topic.