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    Apparatus and method for providing music-on-hold service in key telephone system
    4.
    发明授权
    Apparatus and method for providing music-on-hold service in key telephone system 有权
    在钥匙电话系统中提供音乐保持服务的装置和方法

    公开(公告)号：US06490346B2

    公开(公告)日：2002-12-03

    申请号：US09426925

    申请日：1999-10-22

    申请人： Tae-Gyu Lee ,  Jeong-Woo Lee

    发明人： Tae-Gyu Lee ,  Jeong-Woo Lee

    IPC分类号： H04M164

    CPC分类号： H04M3/4285 ,  H04M1/80 ,  H04M9/00

    摘要： An apparatus and method for providing a music-on-hold service to an originating subscriber requesting a call connection to a busy terminating subscriber in a key telephone system, using an external music-on-hold source coupled to a previously selected central office line port of a central office line circuit to provide a pre-recorded melody.

    摘要翻译： 一种用于向原始用户提供音乐保持服务的装置和方法，该原始用户使用耦合到先前选择的中心局线路端口的外部音乐保持源来请求与密钥电话系统中的忙终端用户的呼叫连接 的中央办公室线路电路提供预先录制的旋律。

    Method for controlling long distance calling using a multi-frequency receiver
    5.
    发明授权
    Method for controlling long distance calling using a multi-frequency receiver 失效
    使用多频接收机控制长途呼叫的方法

    公开(公告)号：US5694461A

    公开(公告)日：1997-12-02

    申请号：US643525

    申请日：1996-05-06

    申请人： Tae-Gyu Lee

    发明人： Tae-Gyu Lee

    IPC分类号： H04M1/66 ,  H04M1/677 ,  H04M3/38 ,  H04M9/00

    CPC分类号： H04M1/677 ,  H04M3/38 ,  H04M9/005

    摘要： A method for controlling long distance calling in an analog key telephone system having a multi-frequency receiver includes the steps of: connecting the multi-frequency receiver to a telephone connected within the system; determining whether numerical digit inputs corresponding to a complete telephone number are provided from the telephone; determining whether the telephone is provided with a class of service that restricts long distance calling, when numerical digit inputs corresponding to a complete telephone number are provided; determining whether the complete telephone number represents a long distance telephone number, when the telephone is provided with the class of service that restricts long distance calling; releasing a call initiated from the telephone, when the complete telephone number represents a long distance telephone number; connecting the call initiated from the telephone, when the telephone is not provided with the class of service that restricts long distance calling, or when the complete telephone number does not represent a long distance telephone number; determining whether a predetermined time period for which the multi-frequency receiver is to be connected to the telephone between numerical digit inputs has elapsed, when numerical digit inputs corresponding to a complete telephone number are not provided from the telephone; determining whether a numerical digit key of the telephone is in a depressed state, when the predetermined time period has elapsed; and disconnecting the multi-frequency receiver from the telephone, when a numerical digit key of the telephone is not in the depressed state.

    摘要翻译： 一种用于在具有多频接收机的模拟电话系统中控制长途呼叫的方法包括以下步骤：将多频接收机连接到系统内连接的电话; 确定是否从电话提供对应于完整电话号码的数字输入; 当提供对应于完整的电话号码的数字输入时，确定电话是否被提供限制长途呼叫的一类服务; 当电话被提供限制长途电话服务的类别时，确定完整的电话号码是否代表长途电话号码; 当完整的电话号码代表长途电话号码时，发出从电话发出的呼叫; 连接从电话发起的呼叫，当电话没有提供限制长途呼叫的服务等级时，或者当完整的电话号码不代表长途电话号码时; 当没有从电话机提供对应于完整的电话号码的数字输入时，确定在数字数字输入之间是否已经将多频接收机连接到电话机的预定时间段; 当所述预定时间段已经过去时，确定所述电话的数字密钥是否处于按压状态; 并且当电话的数字键不处于按压状态时，断开多频接收机与电话的连接。