Hi, I have Digium PRI card , I have installed latest dahdi drivers for TE133 card. I follow the wiki.freeswitch.org for installations of freetdm. Kindly help on this I am getting bellow error while loading mod_freetdm module. 2014-06-02 18:52:09.671027 [DEBUG] ftdm_sched.c:258 Created schedule freetdm-master 2014-06-02 18:52:09.671027 [NOTICE] ftdm_sched.c:185 Launching main schedule thread 2014-06-02 18:52:09.671027 [DEBUG] ftdm_sched.c:194 Running schedule freetdm-master in the main schedule thread 2014-06-02 18:52:09.671027 [DEBUG] ftdm_config.c:80 Configuration file is /usr/local/freeswitch/conf/modules.conf 2014-06-02 18:52:09.671027 [NOTICE] ftdm_io.c:6345 Modules configured: 1 2014-06-02 18:52:09.671027 [DEBUG] ftdm_config.c:80 Configuration file is /usr/local/freeswitch/conf/freetdm.conf 2014-06-02 18:52:09.671027 [DEBUG] ftdm_io.c:5125 Reading FreeTDM configuration file 2014-06-02 18:52:09.671027 [DEBUG] ftdm_io.c:5142 found config for span 2014-06-02 18:52:09.671027 [NOTICE] ftmod_zt.c:1504 Using DAHDI control device 2014-06-02 18:52:09.671027 [ERR] ftmod_zt.c:1513 Cannot open control device /dev/dahdi/ctl: Permission denied 2014-06-02 18:52:09.671027 [ERR] ftdm_io.c:5515 Error loading /usr/local/freeswitch/mod/ftmod_zt.so 2014-06-02 18:52:09.671027 [ERR] ftdm_io.c:5555 Unloading /usr/local/freeswitch/mod/ftmod_zt.so 2014-06-02 18:52:09.671027 [DEBUG] ftdm_dso.c:90 lib 0x7fc44800f9c0 was closed with success 2014-06-02 18:52:09.671027 [CRIT] ftdm_io.c:859 failure creating span, no such I/O type 'zt' 2014-06-02 18:52:09.671027 [CRIT] ftdm_io.c:5171 failure creating span of type zt 2014-06-02 18:52:09.671027 [INFO] ftdm_io.c:5419 Configured 0 channel(s) 2014-06-02 18:52:09.671027 [ERR] ftdm_io.c:6355 FreeTDM global configuration failed! 2014-06-02 18:52:09.671027 [DEBUG] ftdm_sched.c:224 Waiting for main schedule thread to finish 2014-06-02 18:52:09.771105 [NOTICE] ftdm_sched.c:154 Main scheduling thread going out ... 2014-06-02 18:52:09.771105 [CRIT] switch_loadable_module.c:1448 Error Loading module /usr/local/freeswitch/mod/mod_freetdm.so **Module load routine returned an error** -- Best Regards, Maheshkumar Katta