OK - I found this: 2013-07-14 21:43:35.680082 [NOTICE] ftmod_zt.c:1451 Using DAHDI control device 2013-07-14 21:43:35.680099 [ERR] ftmod_zt.c:1460 Cannot open control device /dev/dahdi/ctl: Permission denied So checking /dev/dahdi# ll total 0 crw-rw---T 1 root dialout 196, 1 2013-07-14 21:15 1 crw-rw---T 1 root dialout 196, 2 2013-07-14 21:15 2 crw-rw---T 1 root dialout 196, 3 2013-07-14 21:15 3 crw-rw---T 1 root dialout 196, 4 2013-07-14 21:15 4 crw-rw---T 1 root dialout 196, 254 2013-07-14 21:15 channel crw-rw---T 1 root dialout 196, 0 2013-07-14 21:15 ctl crw-rw---T 1 root dialout 196, 255 2013-07-14 21:15 pseudo crw-rw---T 1 root dialout 196, 253 2013-07-14 21:15 timer crw-rw---T 1 root dialout 196, 250 2013-07-14 21:15 transcode So I added freeswitch to the dialout group $ grep dialout /etc/group dialout:x:20:asterisk,nut,freeswitch But the error continues. Doing $ su -s /bin/bash freeswitch Then cat of 1 allows me to get data as freeswitch Is freetdm running as a different user? This is with a Digium, Inc. Wildcard AEX410 4-port analog card (PCI-Express) which works with asterisk. [span zt FXS] trunk_type => FXS fxs-channel => 1 fxs-channel => 2 [span zt FXO] trunk_type => FXO fxo-channel => 3 fxo-channel => 4 Here is the 'interesting' bit from the log. 2013-07-14 21:43:35.679613 [DEBUG] ftdm_config.c:52 New mod directory: /usr/lib/freeswitch/mod 2013-07-14 21:43:35.679627 [DEBUG] ftdm_config.c:58 New config directory: /etc/freeswitch 2013-07-14 21:43:35.679709 [DEBUG] ftdm_sched.c:161 Initializing scheduling API 2013-07-14 21:43:35.679719 [DEBUG] ftdm_sched.c:258 Created schedule freetdm-master 2013-07-14 21:43:35.679727 [NOTICE] ftdm_sched.c:185 Launching main schedule thread 2013-07-14 21:43:35.679748 [DEBUG] ftdm_sched.c:194 Running schedule freetdm-master in the main schedule thread 2013-07-14 21:43:35.679765 [DEBUG] ftdm_config.c:80 Configuration file is /etc/freeswitch/modules.conf 2013-07-14 21:43:35.679831 [NOTICE] ftdm_io.c:6330 Modules configured: 1 2013-07-14 21:43:35.679890 [DEBUG] ftdm_config.c:80 Configuration file is /etc/freeswitch/freetdm.conf 2013-07-14 21:43:35.679902 [DEBUG] ftdm_io.c:5127 Reading FreeTDM configuration file 2013-07-14 21:43:35.679925 [DEBUG] ftdm_io.c:5366 Debug DTMF directory set to '/full/path/to/dtmf/directory' 2013-07-14 21:43:35.679936 [DEBUG] ftdm_io.c:5144 found config for span 2013-07-14 21:43:35.680082 [NOTICE] ftmod_zt.c:1451 Using DAHDI control device 2013-07-14 21:43:35.680099 [ERR] ftmod_zt.c:1460 Cannot open control device /dev/dahdi/ctl: Permission denied 2013-07-14 21:43:35.680105 [ERR] ftdm_io.c:5497 Error loading /usr/lib/freeswitch/mod/ftmod_zt.so 2013-07-14 21:43:35.680109 [ERR] ftdm_io.c:5537 Unloading /usr/lib/freeswitch/mod/ftmod_zt.so 2013-07-14 21:43:35.680157 [DEBUG] ftdm_dso.c:90 lib 0x7f258c024db0 was closed with success 2013-07-14 21:43:35.680165 [CRIT] ftdm_io.c:866 failure creating span, no such I/O type 'zt' 2013-07-14 21:43:35.680170 [CRIT] ftdm_io.c:5173 failure creating span of type zt 2013-07-14 21:43:35.680176 [DEBUG] ftdm_io.c:5144 found config for span 2013-07-14 21:43:35.680294 [NOTICE] ftmod_zt.c:1451 Using DAHDI control device 2013-07-14 21:43:35.680310 [ERR] ftmod_zt.c:1460 Cannot open control device /dev/dahdi/ctl: Permission denied 2013-07-14 21:43:35.680315 [ERR] ftdm_io.c:5497 Error loading /usr/lib/freeswitch/mod/ftmod_zt.so 2013-07-14 21:43:35.680319 [ERR] ftdm_io.c:5537 Unloading /usr/lib/freeswitch/mod/ftmod_zt.so 2013-07-14 21:43:35.680347 [DEBUG] ftdm_dso.c:90 lib 0x23626c0 was closed with success 2013-07-14 21:43:35.680353 [CRIT] ftdm_io.c:866 failure creating span, no such I/O type 'zt' 2013-07-14 21:43:35.680357 [CRIT] ftdm_io.c:5173 failure creating span of type zt 2013-07-14 21:43:35.680377 [INFO] ftdm_io.c:5421 Configured 0 channel(s) 2013-07-14 21:43:35.680384 [ERR] ftdm_io.c:6340 FreeTDM global configuration failed! 2013-07-14 21:43:35.680389 [DEBUG] ftdm_sched.c:224 Waiting for main schedule thread to finish 2013-07-14 21:43:35.779910 [NOTICE] ftdm_sched.c:154 Main scheduling thread going out ... 2013-07-14 21:43:35.780564 [CRIT] switch_loadable_module.c:1383 Error Loading module /usr/lib/freeswitch/mod/mod_freetdm.so **Module load routine returned an error** -------------------------------------------------------------------------------- Karl Schmidt EMail Karl@xtronics.com Transtronics, Inc. WEB http://secure.transtronics.com 3209 West 9th Street Ph (785) 841-3089 Lawrence, KS 66049 FAX (785) 841-0434 Beware of 'do-good-ers': the greatest evil is always done in the name of 'doing good'. Kps --------------------------------------------------------------------------------