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).
In late 2011Cisco has developed and released a new video system Cisco TelePresence SX20 Quick Set. A solution, which is easy to install and operate, transforms any screen into a multipoint control unit (FSI) of the new generation. Cisco SX20 Quick Set system is sold at affordable price for medium and small businesses.