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.
After many years in the VoIP industry supplying long distance service and VoIP technical support, AirStar Communications has decided to expand into the residential and business phone service.
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