[asterisk-users] DTMF problem

[Sam Govind]

Hey there,

I don't think that its DTMF mode issue ! OP say pressing 9 asterisk ignores
while pressing 6 is OK. Using expensive PBX solutions should be never be the
first priority.

So I'd a similar experience in some asterisk version when I used to enter 2
asterisk always took 3-4 seconds to do anything wheras all other DTMF digits
were working as quickly as DTMF entered.
Since pressing 6 key works fine means this could be more possibly issue with
handset.
Also there is an option in background application "m" where background will
only accept the DTMF whose extens are created in the same context..so if
you've something like this in your dialplan

[test-BKGRND]
exten => s,1,Background(som-sound-file,m)
exten => s,n,Waitexten(20)

exten => 1,1,NOOP(User presssed 1)
exten => 3,1,NOOP(User presssed 1)
exten => 5,1,NOOP(User presssed 1)

Background will act as only recognizing DTMF 1,3,and 5.

even if its DTmfmode issue ...you can one more trick to fix this as well..
use application sipdtmfmode(inband|rfc2833|info)  if call is coming from a
particular caller/UA.

I hope this could be of some help.

Regards,

- Sammy

On Mon, Sep 19, 2011 at 4:51 AM, Zeeshan A Zakaria <mail at visionvoip.com>wrote:

> This DTMF problem has always been there and there is no real solution for
> it, other than using those expensive PBX systems like that from Avaya,
> Cisco, etc. This problem happens when you are sending inband DTMF tones. Via
> softphone you are sending out-of-band DTMF which is basically SIP messages.
>
> --
> Zeeshan A Zakaria
>
> IT Consultant
> www.zeeshanz.com
> 855-ZEESHAN
>
> "asterisk asterisk" <asterisk at ck-lee.com> wrote:
>
> >From time to time, I have a DTMF problem. The asterisk cannot recognize
> >my
> >handset key pressed if I press 9 to start with. However, if I press
> >with 6,
> >it is ok.
> >
> >On the other hand, if DMTF key is generated from softphone, it is ok.
> >
> >My dialplan is as follow
> >
> >exten => 1002,1,Answer
> >exten => 1002,n,Wait(2)
> >exten => 1002,n,Background(thank-you-for-calling)
> >exten => 1002,n,Background(vm-enter-num-to-call)
> >exten => 1002,n,WaitExten()
> >exten => 1002,n,Hangup
> >exten => i,1,Background(pbx-invalid)
> >exten => i,2,Goto(1002,1)
> >exten => t,1,Background(vm-goodbye)
> >exten => t,2,Hangup
> >
> >Thanks for the help in advance.
> >--
> >_____________________________________________________________________
> >-- Bandwidth and Colocation Provided by http://www.api-digital.com --
> >New to Asterisk? Join us for a live introductory webinar every Thurs:
> >               http://www.asterisk.org/hello
> >
> >asterisk-users mailing list
> >To UNSUBSCRIBE or update options visit:
> >   http://lists.digium.com/mailman/listinfo/asterisk-users
>
> --
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>               http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110919/baee298d/attachment.htm>