https://blog.d-vel.com/home/-/blogs/problemi-sui-toni-dtmf-in-rfc2833-con-asterisk-1-6-2?_33_redirect=https%3A%2F%2Fblog.d-vel.com%2Fhome%3Fp_p_id%3D33%26p_p_lifecycle%3D0%26p_p_state%3Dnormal%26p_p_mode%3Dview%26p_p_col_id%3Dcolumn-2%26p_p_col_count%3D1%26p_r_p_564233524_tag%3Dasterisk
Problemi sui toni DTMF in rfc2833 con asterisk 1.6.2 - Home
https://community.asterisk.org/t/dahdi-override-rfc2833-dtmf-volume/40903
Dahdi Override rfc2833 dtmf volume? - Asterisk Support - Asterisk Community
Oct 30, 2012 - I have a piece of equipment that trunked with my asterisk box via sip, and uses the asterisk dahdi PRI card for inbound/outbound calls. When dtmf digits are...
asterisk supportdahdioverridedtmfvolume
https://lists.digium.com/pipermail/asterisk-dev/2004-January/003036.html
[Asterisk-Dev] unreliable handling of rfc2833 events [Was: Re: Asterisk Dev wanted for quick job]