A stumper of a question... hopefully not for someone here though! I have a Sangoma A200 card with FXS modules and an emergency telephone (Rath Microtech SmartPhone II - http://www.rathmicrotech.com/smiviiise.html) that requires loop current disconnect signaling to indicate that the call has terminated. I tried everything that I could think of and been in touch with Sangoma's support but we cannot figure out what configuration option(s) I need to enable to send loop current disconnect. We tried setting answer-polarity-reverse and hangup-polarity-reverse to true in freetdm.conf.xml but that didn't seem to make any impact at all (based on the name I was guessing it wouldn't, but I'm willing to try anything!). Do you know what I'm missing? Any help/pointers/hints appreciated! Thanks. ~Brian