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 function of virtual extension gives your employees an impression that they all are situated in one office, when you and your workers do not work in one and the same place. With “Virtual Extensions” you can unify your scattered teams into one whole system.