ABIS Inc | VoIP Provider, Services and Repairs United States
Business telephone & telecommunication installation and services for Nortel phone systems, Avaya phone systems. Dallas VoIP products, services & installation
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).