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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Cheap VoIP Phones

Does Cheap VoIP communication means cheap VoIP phones? Statistics about VoIP communications: in 2010 are sold 164 million IP-Phones (in according with ‘’In-Stat’’ Inc. findings) in comparison with 10 million sold in 2006. According to “Juniper research’’ market of VoIP PBXs is $ 1.6 billion in2009; average price per VoIP phone dropped twice (50%) sine last five years. However, average life expectancy of an average VoIP phone system is 7 years.

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