[asterisk-users] DTMF digits falsely detected

[Matthew Jordan]

----- Original Message -----
> From: "Vladimir Mikhelson" <vlad at mikhelson.com>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com>
> Sent: Friday, September 14, 2012 10:39:30 PM
> Subject: Re: [asterisk-users] DTMF digits falsely detected
> 
> 
> On 9/14/2012 10:11 PM, Matthew Jordan wrote:
> >
> > ----- Original Message -----
> >> From: "Vladimir Mikhelson" <vlad at mikhelson.com>
> >> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> >> <asterisk-users at lists.digium.com>
> >> Sent: Friday, September 14, 2012 9:24:41 PM
> >> Subject: Re: [asterisk-users] DTMF digits falsely detected
> >>
> >>
> >> On 9/14/2012 6:04 PM, Alec Davis wrote:
> >>>> -----Original Message-----
> >>>> From: asterisk-users-bounces at lists.digium.com
> >>>> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
> >>>> Vieri
> >>>> Sent: Saturday, 15 September 2012 8:45 a.m.
> >>>> To: asterisk-users at lists.digium.com
> >>>> Subject: [asterisk-users] DTMF digits falsely detected
> >>>>
> >> Can it be related to
> >> https://issues.asterisk.org/jira/browse/ASTERISK-19610 ??
> >>
> >> -Vladimir
> > Most likely not.  If the SIP peer is using rfc2833 DTMF, its most
> > likely
> > related to r370252.
> >
> > Please file an issue on the issue tracker,
> > https://issues.asterisk.org/jira.
> > Please include a pcap of the RTP stream and a DEBUG log with RTP
> > debug
> > enabled, using 'rtp set debug on'.
> >
> > Thanks,
> >
> > --
> > Matthew Jordan
> >
> 
> Matt,
> 
> I have created the issue.  See
> https://issues.asterisk.org/jira/browse/ASTERISK-20424?focusedCommentId=197108#comment-197108
> 
> Sorry, I will be unable to produce pcap and rtp debug as I have fixed
> the issue by uninstalling the Soft Phone I used for multiple years
> with
> no issues.
> 
> -Vladimir

Well, it'd be appreciated if someone who is experiencing this would be
willing to reproduce it and attach a pcap and DEBUG log to the issue.
The bug fixed by that commit dealt with out of order DTMF; I suspect
that the problem is your soft phone is sending re-transmits of the end
event of the DTMF digit with an increasing timestamp.  The previous
behavior in Asterisk would most likely have been more tolerant of
this non-compliant scenario, but didn't handle the out of order packets
as well.

Unfortunately, without evidence confirming that, there isn't much I can
do.

--
Matthew Jordan
Digium, Inc. | Engineering Manager
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: http://digium.com & http://asterisk.org