公开(公告)号：US20150222760A1

公开(公告)日：2015-08-06

申请号：US14500429

申请日：2014-09-29

Applicant: Cisco Technology, Inc.

Inventor： Wing-Kuen Chung ,  Cherng-Daw Hwang ,  Michael Edric Tasker

IPC: H04M19/02 ,  H04M7/00 ,  H04M3/02 ,  H04L12/66

CPC classification number: H04M19/026 ,  H03M3/02 ,  H04L12/4633 ,  H04L12/66 ,  H04M3/02 ,  H04M7/0024 ,  H04M7/006

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.

Abstract translation: 响应于尝试的呼叫，多业务接入集中器（MAC）为第一振铃电压信号提供时间限制。 通过分组数据网络系统（VOPS）上的语音尝试呼叫，其中VOPS包括基于因特网协议（IP）的语音，帧中继上的语音，异步传输模式（ATM）上的语音和高级语音 数据链路控制（HDLC）网络系统。 第一振铃电压信号的产生在期限到期时终止。 发送控制消息以终止尝试的呼叫，其中通过VOPS发送控制消息。