[asterisk-users] ConfBridge dtmf_passthrough=no doesn't have any effect. Bug?

[Markus]

Hi list!

ConfBridge dtmf_passthrough=no doesn't seem to have any effect. DTMF 
gets transmitted throughout the conference. I've tried Asterisk 10.7.1 
from the official RPMs and 10.8.0 compiled from source.

I've confirmed that it's disabled via the CLI "confbridge show profile 
user <profilename>".

It's an all-SIP scenario with RFC2833 as the DTMF protocol.

Is this a known bug?

Thank you!
Markus