How to prevent rings from multiple subscribers in a private exchange system

摘要

end. TECHNICAL FIELD OF THE INVENTION;Ring Outgoing Control Method for Multiple Subscribers in Private Switching System;I. The technical problem that the invention is trying to solve;The private exchange system controls ring transmission when incoming by multiple subscribers.;All. Summary of the Solution of the Invention;In the multi-subscriber terminal of the private exchange system, when the incoming call to the phone number of the multi-subscriber's multiple phone numbers is set, the ringing function is not sent, the message is output to the display unit, and the response is received. It is possible.;la. Important uses of the invention;In the private exchange system, the ring can be prevented from ringing depending on whether the ring prevention function is set, and the incoming call can be answered in the ring prevention state.