Hi all I'm experiencing issues while trying to restrict ExtenSpy to a single user's channels. I'm trying this: same => n,ExtenSpy(${EXTEN:3},bde(${EXTEN:3})) and this too same => n,ExtenSpy(${EXTEN:3},bde(SIP/${EXTEN:3})) Being EXTEN:3 == "ext20012104" in this scenario And in the logs I see than the user can hear random channels that have no relation with the one we're trying to spy. Executing [spyext20012104 at callspy:2] ExtenSpy("SIP/ext20012100-000159c6", "ext20012104,bde(SIP/ext20012104)") in new stack Spying on channel SIP/pd20021-000159ab Attaching spy channel SIP/ext20012100-000159c6 to SIP/pd20021-000159ab Attaching spy channel SIP/ext20012100-000159c6 to SIP/pd20021-000159ab Done Spying on channel SIP/pd20021-000159ab Spying on channel SIP/ext20072102-000159bf Attaching spy channel SIP/ext20012100-000159c6 to SIP/ext20072102-000159bf Attaching spy channel SIP/ext20012100-000159c6 to SIP/ext20072102-000159bf Done Spying on channel SIP/ext20072102-000159bf Spying on channel SIP/pstn-000159b2 .... continues ... Any hints? Asterisk 13.38.2 and chan_sip is being used. I had the same issue with asterisk 11.25.3 before I tried asterisk 13. thank you.