Patent ID: 6256379
Filing Date: 2001-07-03
Classification: H04M,H04Q

Abstract:
A method for conveying supervision information to a call processing system using an intelligent network including a signal transfer point connected to the call processing system and connected to a network switch, the call processing system being connected to the network switch by a digital loop carrier not having the ability to convey supervision information and the signal transfer point further being connected to a service control point and connected to a service location register, the method comprising:originating a call at the call processing system, the call having a source capable of communicating with the call processing system and having a destination;receiving the call over the digital loop carrier at the network switch;sending a query from the network switch to the service control point;sending a routing message to the network switch from the service control point in response to the query, the routing message including a request for subsequent information;routing the call from the network switch to the call destination;waiting at the network switch for supervision information corresponding to the request for subsequent information from the destination;upon receiving the supervision information at the network switch, informing the service control point of the supervision information;sending a message from the service control point to the service location register indicative of the supervision information;sending a message from the service location register to the call processing system indicative of the supervision information; andmodifying a connection between the call processing system and the call source to modify a status of a talk path between the source and the destination.