Asterisk: Remotely retrieving voicemail by pressing *

Many howtos around the internet on how to remotely access your voicemail box involve a dedicated extension reachable from the outside or an IVR menu entry. But wouldn’t it be much nicer if you could just press the * DTMF key during the announcement? Turns out, this is quite simple:

exten => s,1,Dial(SIP/1234,20)
exten => s,n,Voicemail(1234,us)
exten => a,1,VoiceMailMain(1234)
exten => a,n,Hangup()

And it even works when you’re using macros (like I am):

exten => 5551234,1,Macro(incoming-plus-voicemail,SIP/1234,20,1234)
exten => 5551337,1,Macro(incoming-plus-voicemail,SIP/1337,20,1337)

[macro-incoming-plus-voicemail] ; SIP/xxx, wait time, voicemail
exten => s,1,Dial(${ARG1},${ARG2}
exten => s,n,Voicemail(${ARG3},us)
push * during the announcement to access your mailbox
exten => a,1,VoiceMailMain(${ARG3})
exten => a,n,Hangup()

2 thoughts on “Asterisk: Remotely retrieving voicemail by pressing *

  1. Mike

    Good simple instructions.

    But I tried using this config :

    exten => 4189778248,n,Playback(greeting)
    exten => 4189778248,n,Voicemail(1000@default,s)
    exten => a,1,VoiceMailMain(1000@default)

    And since I am not playing the default greeting, the ‘*’ is not interpreted.

    Any thought?

  2. Michael Kuron Post author

    I don’t think there’s a way to react to DTMF digits in Playback(). Perhaps you can use ControlPlayback(): set the stop parameter to * and check whether the variable CPLAYBACKSTATUS is set to USERSTOPPED.

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