如何为星号中的被叫方播放声音

Question

对于拨号，我使用

exec("DIAL", "DAHDI/g0/" + callingPhoneNo + "," + currentTimeOut + ",mg,");

在我的java应用程序中。以及使用以下片段为呼叫者播放声音：

exec("background", "custom/incorrectPassword");

但我怎么能在被叫完电话后为听筒播放声音呢？

Answer 1

有三个选项可供选择。实际上只需要一个选项，但历史上我们有3个

1） 正是出于这个目的，拨号命令中的选项A拨号参数

A(x): 
        x - The file to play to the called party
    Play an announcement to the called party, where <x> is the prompt
    to be played

2） 隐私模式选项。

p： 此选项启用筛选模式。这基本上是隐私无内存模式。

P([x]): Enable privacy mode. Use <x> as the family/key in the AstDB
    database if it is provided. The current extension is used if a database
    family/key is not specified.

如果未找到，则基于被叫和询问名称的隐私播放消息

3） Macro和Gosub回答。只是不同和最灵活的方法来做一些事情与调用，使用它你可以收集输入/确认/拒绝呼叫等

M（宏[^arg[^…]]）：

        macro - Name of the macro that should be executed.
        arg - Macro arguments
    Execute the specified <macro> for the *called* channel  before
    connecting to the calling channel. Arguments can be specified to the Macro
    using '^' as a delimiter. The macro can set the variable ${MACRO_RESULT}
    to specify the following actions after the macro is finished executing:
        ${MACRO_RESULT}: If set, this action will be taken after
        the macro finished executing.
            ABORT: Hangup both legs of the call
            CONGESTION: Behave as if line congestion was
            encountered
            BUSY: Behave as if a busy signal was encountered
            CONTINUE: Hangup the called party and allow the
            calling party to continue dialplan execution at the next priority
            GOTO:[[<context>^]<exten>^]<priority>: Transfer the
            call to the specified destination.


U(x[^arg[^...]]): 
    x - Name of the subroutine to execute via Gosub
    arg - Arguments for the Gosub routine
Execute via Gosub the routine <x> for the *called* channel before
connecting to the calling channel. Arguments can be specified to the Gosub
using '^' as a delimiter. The Gosub routine can set the variable ${GO
SUB_RESULT} to specify the following actions after the Gosub returns.
    ${GOSUB_RESULT}: 
        ABORT: Hangup both legs of the call.
        CONGESTION: Behave as if line congestion was
        encountered.
        BUSY: Behave as if a busy signal was encountered.
        CONTINUE: Hangup the called party and allow the
        calling party to continue dialplan execution at the next priority.
        GOTO:[[<context>^]<exten>^]<priority>: Transfer the
        call to the specified destination.

Answer 2

您还可以在Dial应用程序中使用特殊扩展（宏）。这是在被呼叫者拿起电话后运行的。您也可以在其中传递参数。

示例2：拨号宏http://www.voip-info.org/wiki/view/Asterisk+cmd+拨号

Answer 3

如：voip信息中所述，使用A选项是可能的。意味着在这种情况下使用

exec("DIAL", "DAHDI/g0/" + callingPhoneNo + "," + currentTimeOut + ",mg|A(custom/greet)");

命令，拿起电话后为被叫播放greet文件。