ftmod_libpri: Set RDNIS

Signed-off-by: lakshmanan ganapathy <lakindia89@gmail.com>
Reviewed-by: Stefan Knoblich <s.knoblich@axsentis.de>

libs/freetdm/src/ftmod/ftmod_libpri/ftmod_libpri.c

@@ -888,6 +888,7 @@ static int on_ring(lpwrap_pri_t *spri, lpwrap_pri_event_t event_type, pri_event
 	ftdm_set_string(caller_data->cid_num.digits, (char *)pevent->ring.callingnum);
 	ftdm_set_string(caller_data->ani.digits, (char *)pevent->ring.callingani);
 	ftdm_set_string(caller_data->dnis.digits, (char *)pevent->ring.callednum);
+	ftdm_set_string(caller_data->rdnis.digits, (char *)pevent->ring.redirectingnum);
 
 	if (!ftdm_strlen_zero((char *)pevent->ring.callingname)) {
 		ftdm_set_string(caller_data->cid_name, (char *)pevent->ring.callingname);