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.
"Lensol Systems" is the young, effectively developing company having wide experience of realization of the terminal equipment and the software for the organization of communication systems with application of technology of packages switching (VoIP). Its o
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