Automatic Call-back
In telecommunications the automatic call-back is a computer telephone function which allows the user by the engaged addressee’s line or in the other case of the subscriber’s inaccessibility indicating the system to save the number of the called subscriber and make the call when the line will be available or when the called number is not engaged.
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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