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).

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H.323 VoIP gateway

Is a device, which converts telephony traffic into IP for transmission over a data network. It supports real-time audio, video and data information.

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