FIELD: telephony. SUBSTANCE: unit has signal converter 1, data memorizing unit 2, indicator 3, calling user number detector 4, comparison unit 5, undesired users numbers memory unit 6, OR gate 7, users numbers memory unit 8, timers unit 9, rate unit 10. Device permits to receive advertisements for subsequent organization of advertisements at phone, excluding reception of advertisement from the users, refused from paying preliminary service. EFFECT: improved efficiency of operation; improved reliability. 1 dwg
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