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.
CE-Infosys, founded in 1981, Germany, is one of the world's leading developer and manufacturer of advanced network and data security systems. The company offices located in Germany, Singapore and United Arab Emirates with a network of partners worldw
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