We have an asterisk server with a T1. We will soon have some new sites. What i was thinking is : Setuping a new * Server at every new sites and using the IAX2 protocol between the site and the main server. I have a few questions :
1- Is it a good Idea ? Should I use SIP instead of IAX, or mayby i should not even put server at the new sites but only the phones.
2- What kind of internet connection I will need if I expect the new sites will not have more than 4 calls at the same time ?
3- Any other thing !
Thanks for reading and for any awnsers !