ftdm_call_remove_var 4005 src/ftdm_io.c  FT_DECLARE(ftdm_status_t) ftdm_call_remove_var(ftdm_caller_data_t *caller_data, const char *var_name)
ftdm_call_remove_var 1407 src/include/freetdm.h FT_DECLARE(ftdm_status_t) ftdm_call_remove_var(ftdm_caller_data_t *caller_data, const char *var_name);