[asterisk-users] Answer Machine Detection

[Matt Florell]

What predictive dialer are you using? How does it make outbound calls?

There is a patch available for 1.2 that we have been uusing for
several months if you want to use release-quality Asterisk.

MATT---

On 11/21/06, Matheus Rossato <matheusrossatolista at gmail.com> wrote:
> Hi all,
>
>     i'm trying to make AMD, Answer Machine Detection, to work on my
> outbound context but i can't get it to work, just on inbound context
> like whe i use the application Answer before AMD, but i need to make AMD
> to do the detection on an outbound predictive dialer integration. Follow
> are the inbound and outbound examples. My current environment is
> Asterisk 1.4beta3 and a Digum TE105P with ISDN E1. Have any one managed
> to do answer machine detection already?
>
> [outbound]
> exten => _x.,1,AMD
> exten => _x.,2,Dial(SIP/${EXTEN}@10.1.1.203,,tT)
> exten => _x.,3,Wait(2)
> exten => _x.,4,Set(RECORDEDFILE=${CALLERID(num)}.wav)
> exten => _x.,5,Record(${RECORDEDFILE},,,skip)
> exten => _x.,6,Hangup
>
> [inbound]
>
> exten => _x.,1,Answer
> exten => _x.,2,AMD
> exten => _x.,3,Wait(2)
> exten => _x.,4,Set(RECORDEDFILE=${CALLERID(num)}.wav)
> exten => _x.,5,Record(${RECORDEDFILE},,,skip)
> exten => _x.,6,Hangup
>
>
>
> My AMD conf
>
> ;
> ; Answering Machine Detection Configuration
> ;
>
> [general]
> initial_silence = 2500              ; Maximum silence duration before
> the greeting.
>                                               ; If exceeded then MACHINE.
> greeting = 1500                      ; Maximum length of a greeting. If
> exceeded then MACHINE.
> after_greeting_silence = 300   ; Silence after detecting a greeting.
>                                               ; If exceeded then HUMAN
> total_analysis_time = 5000      ; Maximum time allowed for the algorithm
> to decide
>                                               ; on a HUMAN or MACHINE
> min_word_length = 120          ; Minimum duration of Voice to considered
> as a word
> between_words_silence = 50  ; Minimum duration of silence after a word
> to consider
>                                                ; the audio what follows
> as a new word
> maximum_number_of_words = 3     ; Maximum number of words in the greeting.
>                                                        ; If exceeded
> then MACHINE
> silence_threshold = 256
>
>
>
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