Invention Application
US20150222760A1 METHOD AND APPARATUS FOR PROVIDING RINGING TIMEOUT DISCONNECT SUPERVISION IN REMOTE TELEPHONE EXTENSIONS USING VOICE OVER PACKET-DATA-NETWORK SYSTEMS (VOPS)
审中-公开
使用分组数据网络系统（VOPS）中的语音来提供远程电话扩展中的振铃超时断开监控的方法和装置
- Patent Title: METHOD AND APPARATUS FOR PROVIDING RINGING TIMEOUT DISCONNECT SUPERVISION IN REMOTE TELEPHONE EXTENSIONS USING VOICE OVER PACKET-DATA-NETWORK SYSTEMS (VOPS)
- Patent Title (中): 使用分组数据网络系统（VOPS）中的语音来提供远程电话扩展中的振铃超时断开监控的方法和装置
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Application No.: US14500429Application Date: 2014-09-29
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Publication No.: US20150222760A1Publication Date: 2015-08-06
- Inventor: Wing-Kuen Chung , Cherng-Daw Hwang , Michael Edric Tasker
- Applicant: Cisco Technology, Inc.
- Main IPC: H04M19/02
- IPC: H04M19/02 ; H04M7/00 ; H04M3/02 ; H04L12/66
Abstract:
A Multiservice Access Concentrator (MAC) provides a time limit for a first ringing voltage signal in response to an attempted call. The call is attempted via a voice over packet-data-network system (VOPS), wherein the VOPS comprises voice over Internet Protocol (IP), voice over Frame Relay, voice over Asynchronous Transfer Mode (ATM), and voice over High-level Data Link Control (HDLC) network systems. Generation of the first ringing voltage signal is terminated upon expiration of the time limit. A control message is transmitted to terminate the attempted call, wherein the control message is transmitted via the VOPS.
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