I'm using Version3.0.2295.0 of 3cx w/ an Audiocodes MP-114 FXO for my pstn lines. When an external caller leaves a voice mail and hangs up without pressing # the line will stay connected and apparently continues recording dead air for approximately two minutes. If I test between extensions, the line hangs up immediately after the dialing extension hangs up (without pressing # first). In the Audio Codes, I have set both "Enable Polarity Reversal" and "Enable Current Disconnect" to enable. I have set "Disconnect Call on Silence Detection" to Yes. I have set "Silence Detection Period[sec]" to 30. Has anyone else seen this problem and have suggestions to correct it? Thanks in advance.