Special service call routing
    1.
    发明公开
    Special service call routing 失效
    特殊服务呼叫路由

    公开(公告)号:EP0400771A2

    公开(公告)日:1990-12-05

    申请号:EP90301092.4

    申请日:1990-02-02

    申请人: AT&T Corp.

    IPC分类号: H04N1/32

    摘要: This invention relates to methods of establishing facsimile (fax) connections. If a call is originated from a fax source and the destination is a voice station, then the call will be automatically redirected to a fax machine designated to receive fax messages for the voice station. A fax call is detected by a class of service indication in a local switching office, or by having a number forwarded to a toll office from a local office by Automatic Number Identification (ANI) of the caller that is one of a list of fax numbers. When it is determined that a call is a fax call, a fax indicator is sent with Common Channel Signaling (CCS) messages for that call. If a call with a fax indicator is received in a destination switching office, then the destination office checks to see if the called number is a fax number; if not, translation is made to find the number of a fax station for serving fax calls to the called number, and the call is completed to that fax station. Advantageously, customers need not know a fax number to transmit a fax message to an intended recipient.
    Three types of problems arise in treating such calls, recognition that the call is a fax call, transmitting that recognition to a far end switch, and redirecting the call at the fax end switch. Among the other techniques used for recognition are a fax class mark in an originating message from an Integrated Services Digital Network (ISDN) line or a dialed prefix such as #, #3, or an alternative common carrier code (10XXX) from an ordinary line. The redirection includes automatic redirection to a store and forward system on busy or no answer, routing to one of a plurality of alternative destinations based on the day and time, screening junk fax, and lighting a fax message waiting lamp on the called (voice) destination. For international calls, a translation from voice to fax may be made at an egress gateway switch; the fax calls may also be automatically routed over low distortion international transmission facilites.

    摘要翻译: 本发明涉及建立传真(传真)连接的方法。 如果来自传真源的呼叫和目的地是语音站,则该呼叫将被自动重定向到指定接收语音站传真消息的传真机。 传真呼叫由本地交换局中的一类业务指示检测到,或者通过呼叫者的自动号码识别(ANI)从本地办公室转发到收费处,该号码是传真号码列表之一 。 当确定某个呼叫是传真呼叫时,传真指示符将与该呼叫的公共信道信令(CCS)消息一起发送。 如果目的地交换局收到带有传真指示器的呼叫,则目的地办公室检查被叫号码是否是传真号码; 如果没有,则进行翻译以找到用于对被叫号码进行传真呼叫的传真站的号码,并且该呼叫已完成到该传真站。 有利的是,顾客不需要知道传真号码就可以将传真消息发送给预期的接收者。 在处理这种呼叫时出现三种类型的问题,认识到该呼叫是传真呼叫,将该识别传送给远端交换机,并在传真终端交换机处重定向该呼叫。 在用于识别的其他技术中,来自综合业务数字网络(ISDN)线路的始发消息中的传真类别标记或诸如###3的被拨打前缀或来自普通线路的替代通用运营商代码(10XXX) 。 重定向包括在忙或无应答时自动重定向到存储和转发系统,根据日期和时间路由到多个替代目的地之一,筛选垃圾传真,并在被叫(语音)服务器上点亮传真消息等待灯, 目的地。 对于国际呼叫,可以在出口网关交换机上进行从语音到传真的翻译; 传真呼叫也可以通过低失真国际传输设备自动路由。

    Special service call routing
    2.
    发明公开
    Special service call routing 失效
    特殊服务呼叫路由

    公开(公告)号:EP0400771A3

    公开(公告)日:1992-05-27

    申请号:EP90301092.4

    申请日:1990-02-02

    申请人: AT&T Corp.

    IPC分类号: H04N1/32

    摘要: This invention relates to methods of establishing facsimile (fax) connections. If a call is originated from a fax source and the destination is a voice station, then the call will be automatically redirected to a fax machine designated to receive fax messages for the voice station. A fax call is detected by a class of service indication in a local switching office, or by having a number forwarded to a toll office from a local office by Automatic Number Identification (ANI) of the caller that is one of a list of fax numbers. When it is determined that a call is a fax call, a fax indicator is sent with Common Channel Signaling (CCS) messages for that call. If a call with a fax indicator is received in a destination switching office, then the destination office checks to see if the called number is a fax number; if not, translation is made to find the number of a fax station for serving fax calls to the called number, and the call is completed to that fax station. Advantageously, customers need not know a fax number to transmit a fax message to an intended recipient. Three types of problems arise in treating such calls, recognition that the call is a fax call, transmitting that recognition to a far end switch, and redirecting the call at the fax end switch. Among the other techniques used for recognition are a fax class mark in an originating message from an Integrated Services Digital Network (ISDN) line or a dialed prefix such as #, #3, or an alternative common carrier code (10XXX) from an ordinary line. The redirection includes automatic redirection to a store and forward system on busy or no answer, routing to one of a plurality of alternative destinations based on the day and time, screening junk fax, and lighting a fax message waiting lamp on the called (voice) destination. For international calls, a translation from voice to fax may be made at an egress gateway switch; the fax calls may also be automatically routed over low distortion international transmission facilites.