int use; /* counts the number of port that uses this port */
int ntmode; /* is TRUE if port is nt mode */
int pri; /* is TRUE if port is a primary rate interface */
+ int is_tones; /* TRUE if tones are sent outside connect state */
+ int is_earlyb; /* TRUE if tones are received outside connect state */
int upper_id; /* id to transfer data down */
int lower_id; /* id to transfer data up */
int d_stid;