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).
Introduction
In business, communication is essential. Without the ability to speak with the exact person you need to at any given time, how could business get done? This is one of the reasons why the idea of a PBX system is so popular among businesses around the world—without it, communication is between employees and clients could potentially be hindered.