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.
CallExchange provides companies looking to enter the retail telecommunications business a turnkey solution to rapidly and cheaply deploy prepaid and postpaid calling cards and accounts, as well as VoIP softphones and customer premise equipment.
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