Invention Grant
- Patent Title: System and method for conveying end-to-end call status
- Patent Title (中): 用于传送端到端通话状态的系统和方法
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Application No.: US11870850Application Date: 2007-10-11
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Publication No.: US08774174B2Publication Date: 2014-07-08
- Inventor: Jackson James , Mehrad Yasrebi , Philip Cunetto
- Applicant: Jackson James , Mehrad Yasrebi , Philip Cunetto
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, LP
- Current Assignee: AT&T Intellectual Property I, LP
- Current Assignee Address: US GA Atlanta
- Agency: Guntin & Gust, PLC
- Agent Ralph Trementozzi
- Main IPC: H04L12/66
- IPC: H04L12/66 ; H04M1/64 ; H04M11/00 ; H04M15/00 ; H04M3/42 ; H04L12/58 ; H04L29/06 ; H04M1/65 ; H04M3/424 ; H04M7/12

Abstract:
A system that incorporates teachings of the present disclosure may include, for example, a Unified Messaging System having a controller element to submit to a Calling Card Server (CCS) over a primary call leg a Session Initiation Protocol (SIP) SUBSCRIBE message requesting outdial event notification for a call placed on a secondary call leg responsive to a reply of a voicemail message, and receive over the primary call leg a SIP NOTIFY message from the CCS indicating outdial events associated with placing the call over the secondary call leg. Additional embodiments are disclosed.
Public/Granted literature
- US20090097619A1 SYSTEM AND METHOD FOR CONVEYING END-TO-END CALL STATUS Public/Granted day:2009-04-16
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