[asterisk-users] DAHDI hangup detection

[Stephen Brown]

Does linetest.agi exist as part of the Asterisk install? I can't find it 
on my box. Also, does this detect dialtone?

Dialtone is being recorded (left as voicemail) without my original 
workarounds in place.

On 9/15/09 1:08 PM, Danny Nicholas wrote:
>
> This is how I'd do it with the "old" dialplan (extensions.conf) --
>
> - exten => s,1,dial.....
>
> - exten => s,n,Macro(voicemail-test,${EXTEN})
>
> - exten => s,n,hangup
>
> - [macro-voicemail-test]
>
> - Exten => s,1,AGI(linetest.agi,${ARG1})
>
> - Exten => s,n,gotoif($["${VAR}" = "AVAIL"]?hangup)
>
> - Exten => s,n,voicemail...
>
> - Exten => s,n(hangup),hangup
>
> Linetest.agi would run an AMI session to see if DAHDI-X was in use and 
> return a variable as AVAIL or undef.  If the line is in use, record 
> voicemail, else hangup.
>
> ------------------------------------------------------------------------
>
> *From:* asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] *On Behalf Of 
> *Stephen Brown Jr
> *Sent:* Tuesday, September 15, 2009 11:52 AM
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* Re: [asterisk-users] DAHDI hangup detection
>
> Ok on the workaround, how would I implement it? I'd like to give that 
> a shot.
>
> On Tue, Sep 15, 2009 at 12:23, Danny Nicholas <danny at debsinc.com 
> <mailto:danny at debsinc.com>> wrote:
>
> The issue is that POTS as a technology does not have Answer/Hangup
> Supervision control (This is per the good folks at Digium).  Your local
> Telco may or may not be of assistance, but a simpler workaround might 
> be to
> hangup on silence or query the line through AMI before transferring to
> voicemail.
>
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> <mailto:asterisk-users-bounces at lists.digium.com>
> [mailto:asterisk-users-bounces at lists.digium.com 
> <mailto:asterisk-users-bounces at lists.digium.com>] On Behalf Of Stephen 
> Brown
> Sent: Tuesday, September 15, 2009 11:18 AM
> To: asterisk-users at lists.digium.com 
> <mailto:asterisk-users at lists.digium.com>
> Subject: [asterisk-users] DAHDI hangup detection
>
> I am running Asterisk 1.6.1.6 and DAHDI/DAHDI tools 2.2.0.2 compiled
> from source on a Debian Lenny box, also running FreePBX 2.5.2. I also
> have an OpenVOX TDM400 card installed with an FXO port on port 1, and an
> FXS port on port 2. I have a POTS line installed and working on the FXO
> port.
>
> However I've encountered a weird problem that I can't seem to figure
> out. I have incoming POTS line calls set to ring a SIP extension (a
> cisco IP phone). It works, but here is the issue:
>
> - If an inbound call comes in on the POTS line and hangs up before the
> call hits voicemail or during the voicemail greeting, Asterisk does not
> appear to detect this condition.
> - As a result of this, a voicemail is being left with a dialtone and
> notifying me
>
> As a workaround, I have set busy detection in chan_dahdi.conf and set 12
> seconds for a minimum voicemail message in voicemail.conf, but I must be
> missing something or something is potentially broke. While this
> workaround works, I don't suspect this behavior I am experiencing is
> normal and I am having a hard time putting a finger on it.
>
> Thanks for any replies.
>
> Stephen
>
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