Hi, We experience some issues to capture SIA ContactID messages from an alarm system, with Freeswitch, the problem is that some DTMFs are missed randomly, so that we can't have a correct message we use a Digium card 'AEX2400' with DAHDI drivers, the alarm system is connected to an FXO port. We see in the freeswitch log that software DTMF detection is enabled, may be the issue comes from this fact... So our question is: how can we enable hardware DTMF detection in DADHI configuration with freeswitch, and how to disable software DTMF detection in freeswitch -- *Haythem HORBIT Responsable développement NGI Maghreb* 53, rue 8601 - 2035 Charguia I Tunis - TUNISIE Tél. : +216 71 808 565 Fax : +216 71 808 395 Gsm : +216 28 801 737 www.ngi-maghreb.com