Hi, I have a Digium TDM410P card, I am using it here in Brazil, where the signaling is not FSK, it's DTMF. It is working, though I am not receiving the callerid: Caller-Caller-ID-Number: [0000000000] Here is my freetdm.conf: [span zt FXO1] fxo-channel => 1 [span zt FXO2] fxo-channel => 2 [span zt FXO3] fxo-channel => 3 Here is one section of my autoload_configs/freetdm.conf.xml: <span name="FXO1"> <!--<param name="hold-music" value="$${moh_uri}"/>--> <!--<param name="enable-analog-option" value="call-swap"/>--> <!--<param name="enable-analog-option" value="3-way"/>--> <param name="tonegroup" value="br"/> <param name="digit-timeout" value="2000"/> <param name="max-digits" value="11"/> <param name="dialplan" value="XML"/> <param name="context" value="public"/> <param name="enable-callerid" value="true"/> <!-- regex to stop dialing when it matches --> <!--<param name="dial-regex" value="5555"/>--> <!-- regex to stop dialing when it does not match --> <!--<param name="fail-dial-regex" value="^5"/>--> </span> Is it possible to enable the callerid detection in these conditions, or is it a hardware/driver limitation? Regards.