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.
Advantage Century Telecommunication Corporation, established in 1998, is a leading VoIP solution provider for customer premises equipment with headquarter in Taipei. We specialize and focus on design, R&D, manufacturing, marketing and sales as well as OEM
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