[asterisk-users] Asterisk outbound calling does not wait for answer before playback

[Alyed Tzompa]

		Had the same issue time ago, but Eric shed good light on it, have a look at:

http://lists.digium.com/pipermail/asterisk-users/2006-November/172079.html

Summary: sorry, no nice work around.

Alyed  

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Hello Asteriskers, :-)

We're trying to set up an outbound notification calling for system 
alerts with Asterisk 1.4.0.  We generate a call file in 
/var/spool/asterisk/outgoing and the outbound call is originated through 
Zap/1 (Sangoma A200D to a Canadian POTS line).  The problem is that 
Asterisk does not wait for the other side to answer before it starts 
playing the message.  So the person called answers the phone after the 
second or third ring and only hears the tail end of the message and the 
"goodbye".

Ideally, we want to deliver the message immediately after the person 
answers, or if an answering machine picks up, right after the "beep".

Any suggestions?

(1) The call file generator script (works ok):
#!/bin/sh

TMPFILE=`mktemp /tmp/tmp.XXXXXXX` || exit 1
echo "TMPFILE = $TMPFILE"

cat < $TMPFILE
Channel: Zap/g1/phone_number_here
Callerid: SYSTEM
MaxRetries: 2
RetryTime: 60
WaitTime: 30
Context: dialout
Extension: s
Priority: 1
EOT

mv -v $TMPFILE /var/spool/asterisk/outgoing

(2) The dialout context in extensions.conf (problem - starts playback 
before call is answered)
[dialout]
exten => s,1,NoOp(Dialout)
exten => s,n,Set(TIMEOUT(digit)=5)
exten => s,n,Set(TIMEOUT(response)=8)
exten => s,n,Set(MACHINE=0)
exten => s,n,Answer
exten => s,n,BackgroundDetect(silence/5,1000,50)
exten => s,n,NoOp(Ans Machine detected)
exten => s,n,Set(MACHINE=1)
exten => s,n,BackgroundDetect(silence/30,1000,50,30050)
exten => s,n,NoOp(Ans Machine Message Too Long)
exten => s,n,Hangup

exten => talk,1,GotoIf($[${MACHINE}=1]?machine:human)
exten => talk,2(machine),Goto(dialout-machine,s,1)
exten => talk,3(human),Goto(dialout-human,s,1)

[dialout-machine]
exten => s,1,NoOp(Dialout to Ans Machine)
exten => s,n,Playback(/tmp/asterisk-recording)
exten => s,n,Wait(1)
; we'd like to do something to wait for the "beep" here...
exten => s,n,Playback(vm-goodbye)
exten => s,n,Hangup

[dialout-human]
exten => s,1,NoOp(Dialout to Human)
exten => s,n,Playback(/tmp/asterisk-recording)
exten => s,n,Wait(1)
exten => s,n,Playback(vm-goodbye)
exten => s,n,Hangup

(3) *CLI>
    -- Attempting call on Zap/1/1234567 for s at dialout:1 (Retry 1)
       > Channel Zap/1-1 was answered.
    -- Executing [s at dialout:1] NoOp("Zap/1-1", "Dialout") in new stack
    -- Executing [s at dialout:2] Set("Zap/1-1", "TIMEOUT(digit)=5") in new 
stack
    -- Digit timeout set to 5
    -- Executing [s at dialout:3] Set("Zap/1-1", "TIMEOUT(response)=8") in 
new stack
    -- Response timeout set to 8
    -- Executing [s at dialout:4] Set("Zap/1-1", "MACHINE=0") in new stack
    -- Executing [s at dialout:5] Answer("Zap/1-1", "") in new stack
(Problem: Asterisk does not wait until the call is answered on the far end!)
    -- Executing [s at dialout:6] BackgroundDetect("Zap/1-1", 
"silence/5|1000|50") in new stack
    -- Playing 'silence/5' (language 'en')
    -- Executing [talk at dialout:1] GotoIf("Zap/1-1", "0?machine:human") 
in new stack
    -- Goto (dialout,talk,3)
    -- Executing [talk at dialout:3] Goto("Zap/1-1", "dialout-human|s|1") 
in new stack
    -- Goto (dialout-human,s,1)
    -- Executing [s at dialout-human:1] NoOp("Zap/1-1", "Dialout to Human") 
in new stack
    -- Executing [s at dialout-human:2] 
Playback("Zap/1-1","/tmp/asterisk-recording") in new stack
    -- Playing '/tmp/asterisk-recording' (language 'en')
    -- Executing [s at dialout-human:3] Wait("Zap/1-1", "1") in new stack
    -- Executing [s at dialout-human:4] Playback("Zap/1-1", "vm-goodbye") 
in new stack
    -- Playing 'vm-goodbye' (language 'en')
    -- Executing [s at dialout-human:5] Hangup("Zap/1-1", "") in new stack
  == Spawn extension (dialout-human, s, 5) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'
[Feb  8 13:29:37] NOTICE[32512]: pbx_spool.c:351 attempt_thread: Call 
completed to Zap/1/1234567

Thanks for any ideas on this!

Alvin

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