We want to use the asterisk based solution for our outsourced call center. As the setup has not begin yet we do not have any POTS,T1/E1 carrier…etc. We are completely going from scratch…
I know that for POTS and T1/E1 carrier the asterisk server should have some compatible interface cards with channel types…But as we are going from scratch we want to implement VOIP, we will be using services from some SIP provider…But I’m confused that do we need Telephony Interface card for VOIP (SIP based)…Since we will have IP based phone (software or hardware) …I guess we don’t need any T1000P or FXS or FXO…interfaces card or what ever. In my view only we need to connect the server to switch…so only NIC is required…Please help me.