| 摘要 |
PURPOSE:To improve the intercepting service by allowing a voice storage device to apply intercepting only when an incoming call exists from a telephone set other than a specific telephone set. CONSTITUTION:In the figure, A is a called extension in which the intercepting service by the voice storage device VMS5 is registered, B is a calling extension where a direct call to the A is permitted by the A and X is a calling extension whose direct call to the A is not allowed by the A. When the extension B calls the extension A, a discrimination means 7 discriminates that the extension A is registered for the intercepting service by the VMS5 and a discriminating means 8 discriminates whether or not the direct call of the extension B is permitted. Since the extension B is a specific extension whose direct call is permitted, the direct call between the A and B is carried out. When the extension X calls the extension A, since the X is not the specific extension, the call is intercepted by the VMS5. |
