t_name           3551 src/ftdm_io.c  	char *t_name = 0, *t_val = 0;
t_name           3569 src/ftdm_io.c  	t_name = ftdm_strdup(var_name);
t_name           3572 src/ftdm_io.c  	hashtable_insert(ftdmchan->variable_hash, t_name, t_val, HASHTABLE_FLAG_FREE_KEY | HASHTABLE_FLAG_FREE_VALUE);