[asterisk-users] Call duration problem or maybe calls not hanging up problem

[Sherwood McGowan]

Very weird mate...I would have replied sooner, but in reality there's a
LOT of troubleshooting to be done and it would require working with your
provider. It sounds like (if you're sending a bye when your calls
disconnect) you never receive an actual 200 OK stating the call is
"picked up" and so your system is sending a "CANCEL" ? Just spitballing here