ok, here's my setup. TDM410 card with port 1 having a line to the PSTN and ports 2-4 have the telephone lines plugged in FS version is 1.0.head (git-9dd45e3 2011-11-03 14-45-01 -0500) freetdm.conf has full rw permissions My problem is that I cannot configure freetdm to use this blasted card, no matter what I do..... Assistance appreciated this is my freetdm.conf file [span zt FXS] trunk_type => FXS fxs-channel => 1 [span zt FXO] trunk_type => FXO fxo-channel => 2-4 this is the relevant output from the logfile 2011-11-10 14:16:02.229171 [DEBUG] ftdm_config.c:52 New mod directory: /usr/local/freeswitch/mod 2011-11-10 14:16:02.229411 [DEBUG] ftdm_config.c:58 New config directory: /usr/local/freeswitch/conf 2011-11-10 14:16:02.229656 [DEBUG] ftdm_sched.c:154 Initializing scheduling API 2011-11-10 14:16:02.229732 [DEBUG] ftdm_sched.c:251 Created schedule freetdm-master 2011-11-10 14:16:02.229792 [NOTICE] ftdm_sched.c:178 Launching main schedule thread 2011-11-10 14:16:02.229938 [DEBUG] ftdm_sched.c:187 Running schedule freetdm-master in the main schedule thread 2011-11-10 14:16:02.230029 [DEBUG] ftdm_config.c:80 Configuration file is /usr/local/freeswitch/conf/modules.conf. 2011-11-10 14:16:02.230288 [NOTICE] ftdm_io.c:5725 Modules configured: 1 2011-11-10 14:16:02.230494 [DEBUG] ftdm_config.c:80 Configuration file is /usr/local/freeswitch/conf/freetdm.conf. 2011-11-10 14:16:02.230592 [DEBUG] ftdm_io.c:4635 Reading FreeTDM configuration file 2011-11-10 14:16:02.230687 [DEBUG] ftdm_io.c:4651 found config for span 2011-11-10 14:16:02.231224 [NOTICE] ftmod_zt.c:1323 Using DAHDI control device 2011-11-10 14:16:02.231410 [INFO] ftdm_io.c:4965 Loading IO from /usr/local/freeswitch/mod/ftmod_zt.so [zt] 2011-11-10 14:16:02.231589 [DEBUG] ftdm_config.c:80 Configuration file is /usr/local/freeswitch/conf/zt.conf. 2011-11-10 14:16:02.231826 [INFO] ftmod_zt.c:585 Setting rxgain val to 0.000000 2011-11-10 14:16:02.231922 [INFO] ftmod_zt.c:593 Setting txgain val to 0.000000 2011-11-10 14:16:02.232044 [INFO] ftdm_io.c:787 Auto-loaded I/O module 'zt' 2011-11-10 14:16:02.232201 [DEBUG] ftdm_io.c:4672 created span 1 (FXS) of type zt 2011-11-10 14:16:02.232274 [DEBUG] ftdm_io.c:4690 span 1 [trunk_type]=[FXS] 2011-11-10 14:16:02.232370 [DEBUG] ftdm_io.c:4695 setting trunk type to 'FXS' 2011-11-10 14:16:02.232517 [DEBUG] ftdm_io.c:4690 span 1 [fxs-channel]=[1] 2011-11-10 14:16:02.232770 [WARNING] ftmod_zt.c:352 this ioctl fails on older ftdmtel but is harmless if you used ztcfg [device /dev/dahdi/channel chan 1 fd 16 (Invalid argument)] 2011-11-10 14:16:02.233387 [INFO] ftmod_zt.c:404 configuring device /dev/dahdi/channel channel 1 as FreeTDM device 1:1 fd:17 2011-11-10 14:16:02.233595 [DEBUG] ftdm_io.c:5263 Creating new group:__default 2011-11-10 14:16:02.233746 [DEBUG] ftdm_io.c:4651 found config for span 2011-11-10 14:16:02.233931 [DEBUG] ftdm_io.c:4672 created span 2 (FXO) of type zt 2011-11-10 14:16:02.234045 [DEBUG] ftdm_io.c:4690 span 2 [trunk_type]=[FXO] 2011-11-10 14:16:02.234111 [DEBUG] ftdm_io.c:4695 setting trunk type to 'FXO' 2011-11-10 14:16:02.234173 [DEBUG] ftdm_io.c:4690 span 2 [fxo-channel]=[2-4] 2011-11-10 14:16:02.234550 [WARNING] ftmod_zt.c:352 this ioctl fails on older ftdmtel but is harmless if you used ztcfg [device /dev/dahdi/channel chan 2 fd 16 (Invalid argument)] 2011-11-10 14:16:02.235149 [INFO] ftmod_zt.c:404 configuring device /dev/dahdi/channel channel 2 as FreeTDM device 2:1 fd:18 2011-11-10 14:16:02.235550 [WARNING] ftmod_zt.c:352 this ioctl fails on older ftdmtel but is harmless if you used ztcfg [device /dev/dahdi/channel chan 3 fd 16 (Invalid argument)] 2011-11-10 14:16:02.236157 [INFO] ftmod_zt.c:404 configuring device /dev/dahdi/channel channel 3 as FreeTDM device 2:2 fd:19 2011-11-10 14:16:02.236544 [WARNING] ftmod_zt.c:352 this ioctl fails on older ftdmtel but is harmless if you used ztcfg [device /dev/dahdi/channel chan 4 fd 16 (Invalid argument)] 2011-11-10 14:16:02.237129 [INFO] ftmod_zt.c:404 configuring device /dev/dahdi/channel channel 4 as FreeTDM device 2:3 fd:20 2011-11-10 14:16:02.237385 [INFO] ftdm_io.c:4887 Configured 4 channel(s) 2011-11-10 14:16:02.237644 [ERR] mod_freetdm.c:2953 open of freetdm.conf failed 2011-11-10 14:16:02.238048 [DEBUG] ftdm_sched.c:217 Waiting for main schedule thread to finish 2011-11-10 14:16:02.333760 [NOTICE] ftdm_sched.c:147 Main scheduling thread going out ... 2011-11-10 14:16:02.338252 [INFO] ftdm_io.c:601 Closing channel zt:1:1 fd:17 2011-11-10 14:16:02.338393 [INFO] ftdm_io.c:601 Closing channel zt:2:1 fd:18 2011-11-10 14:16:02.338528 [INFO] ftdm_io.c:601 Closing channel zt:2:2 fd:19 2011-11-10 14:16:02.338601 [INFO] ftdm_io.c:601 Closing channel zt:2:3 fd:20 2011-11-10 14:16:02.338720 [INFO] ftdm_io.c:5092 Unloading I/O interface zt 2011-11-10 14:16:02.338787 [INFO] ftdm_io.c:5099 Unloaded I/O interface zt 2011-11-10 14:16:02.338848 [INFO] ftdm_io.c:5118 Unloading module /usr/local/freeswitch/mod/ftmod_zt.so 2011-11-10 14:16:02.338997 [DEBUG] ftdm_dso.c:90 lib 0xa103d78 was closed with success 2011-11-10 14:16:02.339062 [INFO] ftdm_io.c:5120 Unloaded module /usr/local/freeswitch/mod/ftmod_zt.so 2011-11-10 14:16:02.339124 [DEBUG] ftdm_sched.c:552 Destroying schedule freetdm-master 2011-11-10 14:16:02.339230 [CRIT] switch_loadable_module.c:1281 Error Loading module /usr/local/freeswitch/mod/mod_freetdm.so **Module load routine returned an error**