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.
SpeedVoIP, Inc. is a leading designer and manufacturer of innovative and cost-effective VoIP telephony products, and becomes a major OEM vendor of VoIP terminal products and solutions in the rapidly growing global IP telephony market.
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