A European format for digital transmission. E1 supports signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling), versus the T1, which carries signals at 1.544 Mbps (24 channels at 64Kbps).
The service allows you making a personal
greeting at the VoIP system. It is also possible to set different greetings
depending on which department the calls will come in.