disable_ec_function 4065 mod_freetdm/mod_freetdm.c SWITCH_STANDARD_APP(disable_ec_function) disable_ec_function 4125 mod_freetdm/mod_freetdm.c SWITCH_ADD_APP(app_interface, "disable_ec", "Disable Echo Canceller", "Disable Echo Canceller", disable_ec_function, "", SAF_NONE);