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).
Оne of the most popular number dialling types in the USA and Canada is 10 digit dialling, which represents itself a code of addressee’s location and directly the very number of the addressee.