[asterisk-users] AMD with analog lines - DIALSTATUS empty

[Administrator TOOTAI]

Le 28/03/2014 15:40, Richard Mudgett a écrit :
>
>
>
> On Fri, Mar 28, 2014 at 4:01 AM, Administrator TOOTAI 
> <admin at tootai.net <mailto:admin at tootai.net>> wrote:
>
>     Hello,
>
>     I would like to use AMD on outgoing calls using analog line. I
>     tested with SPA3102 and cisco2811 as gw and asterisk 1.8.26.1 as
>     well as 11.8.1 Other end is analog number behind another
>     cisco/asterisk, also tested calling a mobile number with the same
>     result.
>
>     What I did: dial is done like exten => s,n,Dial(SIP/<IP
>     gw>/<dialed number>,,M(myMacro)), which tell Asterisk to execute
>     myMacro when the call is answered by calling party.
>
>     [myMacro]
>
>     exten => s,1,NoOP(Executed when call is answered)
>      same => n,AMD()
>      same => n,NoOp(Dial status=${DIALSTATUS})
>      same => n,NoOp(AMD status=${AMDSTATUS} cause=${AMDCAUSE})
>      same => n,MacroExit()
>
>     Problem is that [myMacro] is executed as soon as the call is going
>     out from the gw (cisco or linksys) and before called party
>     answered. DIALSTATUS is empty (should be ANSWER),
>     AMDSTATUS=NOTSURE and AMDCAUSE=TOOLONG-5000 which seems OK as
>     DIALSTATUS isn't reliable.
>
>     The same dialplan using a SIP trunk is working as expected.
>
>     So question is, why, when using analog line, I dont get the right
>     behavior.
>
>     Thanks for any hint
>
>
> Analog lines don't have a reliable way to know when the far end 
> actually answers.  Polarity
> reversals could signal when the far end actually answers, but it isn't 
> normally available or
> standardized.  Thus, the line is considered answered when dialing is 
> complete.

OK, so it's a no way.

Thanks for your answer

-- 
Daniel