Patent ID: 6711243
Filing Date: 2004-03-23
Classification: H04M,H04Q

Abstract:
A method for routing a call to a voice mail system, comprising:receiving a call at a service node; determining whether the call is directed to the voice mail system; if the call is directed to the voice mail system, then formulating a first message that includes an access code indicating that the call is a voice mail call and a directory number associated with a subscriber; sending the first message from the service node to a service switching point; in response to receiving the first message, formulating a second message that includes the directory number associated with the subscriber; sending the second message from the service switching point to a service control point; formulating the third message that sets original called party number to the directory number associated with the subscriber; sending the third message from the service control point to the service switching point; formulating a fourth message that includes a voice mail access number corresponding to the directory number and sets a last redirecting party number to the directory number, after the service control point determines the voice mail access number by searching a database associated wvith the service control point; sending the fourth message from the service control point to the service switching point; and sending call integration information from the service switching point to the voice mail system, wherein the call integration information identifies both the original called party number and the last redirecting party number as the directory number associated with the subscriber such that the call is identified as bound for the subscriber's mailbox in the voice mail system, regardless whether the call integration information is derived using the original called party number or the last redirecting party number.