Hi, I configured an extension that first call for some seconds a phone and if nobody is picking up, the caller is hearing a playback and can press 1 for leaving a voicemail and 2 to get redirected to a mobile phone. The Problem is that in my test environment with a SIP Provider everything works fine after tuning the voicemail.conf.xml to <param name="record-silence-threshold" value="200"/> <param name="record-silence-hits" value="10”/> But on the production machine we are using a patton as a ISDN Gateway and after pressing 1 for the voicemail I always got "Message is less than minimum record length: 3” on the calling phone. After that I can record a message and that works as expected. Is there a way do disable the silence_detection or any hint what I can change? I tried changing the silence-threshold to 1,50 and silence-hits to 300,30000 but nothing has changed Debug Log https://pastebin.freeswitch.org/23851 <https://pastebin.freeswitch.org/23851> The called python script: def handler(session, args): voicemail = args.split(' ')[0] dtmf_pressed = args.split(' ')[1] forward_number = args.split(' ')[2] callerid = session.getVariable("caller_id_number") callername = session.getVariable("caller_id_name").lstrip() if dtmf_pressed == '1': send_sms('377XXXXXXX’,’New Voicemail from %s %s' % (callername, callerid)) session.execute("export", "skip_greeting=true") session.execute("export", "skip_instructions=true") session.execute("answer") session.execute("voicemail", "default 192.168.17.252 10”) #session.execute("bridge", "loopback/app=voicemail:default %s %s" % (conf['network']['ip'],voicemail)) elif dtmf_pressed == '2': consoleLog( "info", "Call is forwarded to %s\n" % forward_number) session.transfer(forward_number, "XML", "default") else: consoleLog( "info", "DTMF received is %s and not 1 or 2.Hangup Call\n" % (dtmf_pressed)) session.hangup() Thank you, Raphael