[Freeswitch-users] DTMF not working in my installation

[Piotr Gregor]

Hi Euan,

Maybe your device is sending in-band DTMF while your software expects
RFC-2833.

Try setting:
 <action application="start_dtmf"/>
in the dialplan entry.

cheers,



Piotr Gregor
Software Engineer

M: (+44) 07483 866 525     L: (+44) 01444 415 862     www: dataandsignal.com






On Wed, May 29, 2019 at 11:25 PM Sandro Bordacchini <
sandro.bordacchini at nems.it> wrote:

> Hi Euan.
> I think you should probably check how your softphone sends DTMF (usually
> could be in-band, rfc2833 or SIP Info, and you have set FS to work with
> rfc2833 dtmf).
> Setting liberal-dtmf parameter could be of some help sometimes
> https://freeswitch.org/confluence/display/FREESWITCH/Sofia+Configuration+Files#SofiaConfigurationFiles-liberal-dtmf
>
> Hope it helps.
> SB
>
> Il giorno lun 27 mag 2019 alle ore 16:47 Euan Millar <
> euan at ensemblepourladifference.org> ha scritto:
>
>> Hello again, kind Freeswitch group.
>>
>> I am using ESL to control my calls entirely from a Node application.  I
>> am using the 'modesl <https://github.com/englercj/node-esl>' package to
>> create an ESL connection and listen to the FS events
>> <https://freeswitch.org/confluence/display/FREESWITCH/Event+List> and
>> then answer a call if the number matches a dialplan I want to control using
>> the mod_command "uuid_answer."
>>
>> I have gotten as far as attempting to recognise DTMF events, but I am
>> getting no DTMF events through.
>>
>> So, I tested my Freeswitch installation using the IVR demo, and it looks
>> like DTMF is not being received by Freeswitch at all.
>> I monitored fs_cli and I can see that the demo is just waiting for
>> digits, even though I can hear them being pressed in my softphone.
>>
>> Is there any particular modules that I need to ensure are installed, or
>> configuration I need to make in order to enable DTMF?
>>
>> In a previous email to this list, I saw a message advising to set the
>> following in sofia.conf.
>>
>> <param name="dtmf-type" value="rfc2833"/>
>>
>> I can see that the property is loaded inside sip_profiles > internal.xml
>>
>> But changing this has had no effect.  I still do not get any DTMF events
>> being recognised in fs_cli
>>
>> Many thanks for any help or advice you can provide.
>>
>> Kind regards,
>>
>> Euan
>>
>>
>>
>>
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>
> _________________________________________________________________________
>
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN
> services.
> Build your next product on our scalable cloud platform.
>
> Join our online community to chat in real time
> https://signalwire.community
>
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
>
> FreeSWITCH-users mailing list
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