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 system allows managing traditional voice and IP channels. It provides a full control of the communication process between the contact centre and the client as well as allowing processing incoming and outgoing calls made by the same agents.