We have a conference with three parties; the parties are configured with the dist-dtmf member flag so that DTMF may be used to manipulate IVR/Voicemail systems.
When we place 1 member on hold and give them hold music to listen to, the other parties interact using DTMF. In this configuration the party that is on hold can hear the DTMF digits through the hold music.
How do we stop the party that is on hold from hearing the DTMF digits? We have looked at the skip-dtmf flag, but this can only be set when the conference is created not once it is in progress. Is there an alternative to temporarily removing the party from the conference?