A T1 line is a high-speed digital telephone line that transfers signals at 1.544Mbps and accommodates up to 24 telephone lines or trunks. So, it?s a good and essential system you should not mind paying for. I have Broadcore Hosted VoIP PBX device which I got at an economical rate ,there is no monthly charges or stuff like that .. It?s broadband connection appears to be good.