Critical communication priority control method using credit call service

摘要

The present invention relates to a method for controlling an important communication priority connection service, and more particularly, to a method for controlling an important communication priority connection service control method using a currently provided credit call service at a time of emergency disaster or currency congestion, The subscriber data structure of the existing credit call service and the service control logic of the existing credit call service are modified or supplemented so as to preferentially process the service call requested by the subscriber, A method is presented.