Patent ID: 8116443
Filing Date: 2012-02-14
Classification: H04M

Abstract:
1. A method for sending to a busy station of a previous caller whose calling telephone number (destination directory number) and recorded voice message have been left in a voice mail recipient (VMR) mailbox a directory telephone number (DN) and/or name of said VMR after said VMR activates an automatic callback to the previous caller, said mailbox of said VMR is associated with a voice mail system (VMS) which is coupled to a stored program controlled switching system (SPCS) of said VMR, comprising the steps of: (a) said VMS sends to said SPCS of said VMR a data message containing calling/called information such as said destination directory number of the previous caller and said DN and/or name of said VMR after said VMR enters a predetermined digit on a keypad of an apparatus at said VMR station to activate the automatic callback to the previous caller in response to a verbal announcement from said VMS after or while listening to a verbal announcement of the previous caller destination directory number and recorded voice message left in said VMR mailbox; (b) said SPCS of said VMR receives from said VMS the data message containing said destination directory number of the previous caller and said DN and/or name of said VMR and stores said received data message in a call store of said SPCS, disconnects from said VMS and connects audible ringing signals to said VMR line, translates area and office codes of said destination directory number stored in the call store into appropriate routing information to select a trunk line which is an appropriate route to a stored program controlled switching system (SPCS) of the previous caller, generates an initial address message (IAM) which includes said destination directory number of the previous caller and said DN and/or name of said VMR, and then transmits said IAM message to said SPCS of the previous caller; and (c) said SPCS of the previous caller, in response to receiving said destination directory number of the previous caller contained in said IAM message, stores said received IAM message in a call store of said SPCS, determines that the previous caller line is busy and has conventional call waiting ID service, sends a subscriber alerting signal (SAS) and a CPE alerting signal (CAS) to the previous caller busy station, and then sends said DN and/or name of said VMR from the call store of said SPCS to said busy station after an apparatus at said busy station mutes its own voice channel and generates an acknowledgement tone in response to said CAS.