Thanks, Avi.

I just tried that, but it seemed to have no effect.

This is what I had in the dialplan:

  <action application="start_dtmf" />
  <action application="set" data="rtp_manual_rtp_bugs=FLUSH_JB_ON_DTMF"/>
  <action application="set" data="jitterbuffer_msec=60"/>
  <action application="set" data="sip_jitter_buffer_during_bridge=true"/> 
  <action application="bridge" data="user/${dialed_extension}@${domain_name}"/>

I then used Zoiper, configured with DTMF set to inband, to call a Snom handset.  Any DTMF sent from Zoiper, on the aleg, was detected as SWITCH_DTMF_INBAND_AUDIO, but the tones are still being clearly heard on the bleg at the Snom handset.

Is there something else I need to set (or not set)?

Andy

On 12/07/16 16:00, Avi Marcus wrote:
You can use:
<action application="set" data="rtp_manual_rtp_bugs=FLUSH_JB_ON_DTMF"/>
<action application="set" data="jitterbuffer_msec=60"/>
<action application="set" data="sip_jitter_buffer_during_bridge=true"/>

-Avi Marcus
BestFone


On Tue, Jul 12, 2016 at 5:44 PM Andrew Newlands <anewlands@btlnet.co.uk> wrote:

Does anyone know how to filter inband DTMF, on a bridged call, such that inband DTMF from one leg is not passed to the other leg?

 

E.g. replace the DTMF with silence or, possibly, a masking tone?

 

Many thanks

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