E1/T1
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).
Cisco SPA525G is a high-tech IP-phone, designed to work in conjunction with five lines. This phone is equipped with a large color LCD display with a diagonal of 3.2 "and refers to telephones of business class. If your company is using all the advantages of modern IP-telephony, this device will be the best choice.
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