Hi Chad, I would expect the version you installed is outdated - didn't support estimation of amplitude. The avmd gave (not so) false beeps (but also not what you think it should), because it fired beep detection event if constant frequency has been detected - it neglected the signal level at all. The recent version of avmd merged into master has this support included. You can also specify whether you want to detect amplitude only, frequency only, or both of them at once. detection_mode setting is responsible for this (0 - amp, 1 - freq, 2 - both (default)). <action application="avmd_start" data="detection_mode=2,(...other settings...)"/> freeswitch@> avmd show ================================================================================================= Avmd global settings debug 0 report status 1 fast_math 0 require continuous streak 1 sample n continuous streak 3 sample n to skip 0 require continuous streak amp 1 sample n continuous streak amp 3 simplified estimation 1 inbound channel 0 outbound channel 1 detection mode 2 sessions 0 +OK show commit 121bf8390966e9d7ac5dde9ed701d3503744d57e or later Please could you try this one. cheers, Piotr