公开(公告)号：US20040120310A1

公开(公告)日：2004-06-24

申请号：US10699769

申请日：2003-11-04

Applicant: ALCATEL

Inventor： Karl Rothenhofer ,  Norbert Wingerath

IPC: H04L012/66 ,  H04L012/56 ,  H04J003/22

CPC classification number: H04Q11/0442 ,  H04Q11/0471 ,  H04Q2213/13034 ,  H04Q2213/13039 ,  H04Q2213/1309 ,  H04Q2213/13096 ,  H04Q2213/13176 ,  H04Q2213/13202 ,  H04Q2213/13203 ,  H04Q2213/13209 ,  H04Q2213/1327 ,  H04Q2213/13332 ,  H04Q2213/1334

Abstract: The invention concerns a method for supporting communication between a switching system and a PSTN terminal connected with a network termination unit through an analog subscriber line. Broadband traffic packets as well as a number of synchronous channels are transferred in both directions over a subscriber line between the network termination unit and the subscriber line board of the switching system. At least one ISDN-B channel and one ISDN-D channel is provided based on such synchronous channels. A protocol converter converts between an analog loop signaling applied on the analog subscriber line and digital signaling messages transported over the ISDN-D channel. An analog to digital conversion is performed between the analog subscriber line and the ISDN-B channel.

Abstract translation: 本发明涉及一种支持交换系统与通过模拟用户线与网络终端单元连接的PSTN终端之间的通信的方法。 宽带业务分组以及多个同步信道通过网络终端单元和交换系统的用户线路板之间的用户线路在两个方向上传送。 基于这种同步信道提供至少一个ISDN-B信道和一个ISDN-D信道。 协议转换器在模拟用户线路上应用的模拟环路信号和通过ISDN-D信道传输的数字信令消息之间进行转换。 在模拟用户线路和ISDN-B信道之间进行模数转换。