公开(公告)号：WO1997016930A1

公开(公告)日：1997-05-09

申请号：PCT/US1996017699

申请日：1996-11-01

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  HSU, Howard

IPC: H04Q03/00

CPC classification number: H04Q3/0045 ,  H04M3/48 ,  H04M7/12 ,  H04M15/00 ,  H04Q3/0025 ,  H04Q2213/13527 ,  H04Q2213/13533 ,  H04Q2213/13546

Abstract: A telecommunications system (10) receives a call back request through a separately maintained computer network, such as an X.25 based computer network (130), and initiates the actual call back toward the requesting subscriber using its own Signaling System No. 7 (SS7) telecommunications network (140). If the call back request fails, an X.25 packet containing an error code is transmitted back to the originating subscriber over the separately maintained computer network. An X.25 TCAP converter (110) is used as an interface card to allow X.25 packets to communicate freely with TCAP based telecommunications network.

Abstract translation: 电信系统（10）通过独立维护的计算机网络（诸如基于X.25的计算机网络（130））接收回叫请求，并且使用其自己的信令系统7来向请求用户发起实际呼叫 SS7）电信网络（140）。 如果回叫请求失败，则包含错误代码的X.25分组在独立维护的计算机网络上被发送回始发用户。 使用X.25 <=> TCAP转换器（110）作为接口卡，以允许X.25分组与基于TCAP的电信网络自由通信。