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).
Media gateway Mediant 3000 is a compact solution oriented on communication operators. It supports from 480 up to 4032 voice channels on OC-3/STM interfaces. This media gateway is suited for applications of medium density, compatible with IP and ATM networks or unified IP/ATM networks.