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OSSLab::開放軟體實驗室(Open Source Software Lab) > VoIP > IP PBX > 軟體式 IP PBX > Asterisk - 免費 IP PBX 網路電話交換平台 > 客製化的設計(Programming) > Call file 開發範例
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Call file 開發範例

    Call file 的開發技巧可應用在 Call-Back(電話回撥)、Predictive Dialer(預時撥號系統)、語音廣播等等系統。

    以最典型的應用-電話回撥的用途可以應用在很多方面，例如網頁客服、自動重撥、自動提醒等等，實現方式可以透過 AGI 或 Macro 方式來呼叫，以下介紹使用不同程式語言來撰寫的範例。

    SHELL(bash)

    shell 是所有 Linux 發行版都會內建的腳本語言，無須另外安裝，使用方便。

    reference to undefined name 'syntax' Exception of type 'MindTouch.Deki.Script.Runtime.DekiScriptUndefinedNameException' was thrown. (click for details)

     

     Macro for Asterisk

    Asterisk 的巨集範例，以下巨集內容可以寫在 /etc/asterisk/extensions.conf 設定檔內。

    [macro-createfile]
;  {ARG1} Number to Dial    0312341234
;  {ARG2} Device/Trunk    SIP/VSP_Name
;  {ARG3} Context        from-internal
;  {ARG4} CallerID        "Name" <number>
exten => s,1,Set(NumToCall=${ARG1})
exten => s,n,System(echo Channel: ${ARG2}/${NumToCall} > /tmp/${NumToCall})
exten => s,n,System(echo CallerID: ${ARG4} >> /tmp/${NumToCall})
exten => s,n,System(echo MaxRetries: 0 >> /tmp/${NumToCall})
exten => s,n,System(echo RetryTime: 120 >> /tmp/${NumToCall})
exten => s,n,System(echo WaitTime: 20 >> /tmp/${NumToCall})
exten => s,n,System(echo Context: ${ARG3} >> /tmp/${NumToCall})
exten => s,n,System(echo Extension: ${NumToCall} >> /tmp/${NumToCall})
exten => s,n,System(echo Priority: 1 >> /tmp/${NumToCall})
exten => s,n,System(echo sleep 15 > /tmp/${NumToCall}.2)
exten => s,n,System(echo mv /tmp/${NumToCall} /var/spool/asterisk/outgoing >> /tmp/${NumToCall}.2)
exten => s,n,System(chmod 775 /tmp/${NumToCall}.2)
exten => s,n,System(/tmp/${NumToCall}.2 &)
exten => s,n,Hangup

    在自定的context或Dialplan都可以呼叫此巨集，簡單的範例可以這樣寫：

    ; Accepted Call Back Numbers
exten => DID/CID,1,Macro(createfile,CID,SIP/GoTalk,callback,CID-Display)
exten => DID/CID,n,HangUp
    Morning Call 應用

    這是飯店常見的電話提醒服務。

    [hotel-intern]
exten => _*77*XXXXXXXXXXXX,1,Answer()
exten => _*77*XXXXXXXXXXXX,n,Set(year=${EXTEN:4:4})
exten => _*77*XXXXXXXXXXXX,n,Set(month=${EXTEN:8:2})
exten => _*77*XXXXXXXXXXXX,n,Set(day=${EXTEN:10:2})
exten => _*77*XXXXXXXXXXXX,n,Set(hours=${EXTEN:12:2})
exten => _*77*XXXXXXXXXXXX,n,Set(minutes=${EXTEN:14:2})
exten => _*77*XXXXXXXXXXXX,n,NoOp(Wake-up call scheduled for ${CALLERID(num)} at ${hours}:${minutes} on ${day}.${month}.${year}.)
exten => _*77*XXXXXXXXXXXX,n,System(echo -e "Channel: SIP/${CALLERID(num)}\\nContext: wake-up\\nExtension: 23" > /tmp/${UNIQUEID}.call)
exten => _*77*XXXXXXXXXXXX,n,System(touch -t ${year}${month}${day}${hours}${minutes} /tmp/${UNIQUEID}.call)
exten => _*77*XXXXXXXXXXXX,n,System(mv /tmp/${UNIQUEID}.call /var/spool/asterisk/outgoing/)
exten => _*77*XXXXXXXXXXXX,n,Playback(rqsted-wakeup-for)
exten => _*77*XXXXXXXXXXXX,n,SayNumber(${hours})
exten => _*77*XXXXXXXXXXXX,n,SayNumber(${minutes})
exten => _*77*XXXXXXXXXXXX,n,Hangup()

[wake-up]
exten => 23,1,Answer()
exten => 23,n,Wait(1)
exten => 23,n,Playback(this-is-yr-wakeup-call)
exten => 23,n,Wait(1)
exten => 23,n,Hangup()

     

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