COMMUNICATION METHOD FOR NON-TELEPHONE SYSTEM TERMINAL EQUIPMENT IN PUBLIC TELEPHONE NETWORK

摘要

PURPOSE:To reduce a time for a caller from being kept useless by measuring actually number of times of calls of a terminal equipment side adaptor responding to a tentative call from a management center and a call time length and revising a tentative call time and a holding time to the tentative call at the terminal equipment side adaptor based on the measurements. CONSTITUTION:In the case of making a tentative call from a center side 2, a tentative call time is varied in various ways to make a tentative call so as to measure whether or not a reply is made correctly from a terminal equipment 6 to the center 2. When the reply to the tentative call is not proper, the tentative call time is revised to change the holding time of the tentative call in the terminal side adaptor 4. Thus, number of times of correct reply at the terminal equipment 5 to the tentative call for plural number of times and the call time length are measured at that time and the optimum tentative call time and the holding time are decided based on the actual measurement. Thus, a wait time of a caller kept waiting useless calling from a general subscriber telephone set is reduced.