The present invention is a system and method of combining an emergency standalone switching device with a switching system interface used to bypass the common control and switch matrix of a class 5 digital switch. The emergency standalone switching device provides call control of the switching system interface. The call control of the emergency standalone switching devices provides local and emergency calls to local subscribers.

 
Web www.patentalert.com

< Method of establishing communications between selected user terminals, using dedicated communication equipments

> Device and method for suppressing echo in telephones

~ 00405