diff -Naur libpri-1.0.7-clean/libpri.h libpri-1.0.7-clean-patched/libpri.h
--- libpri-1.0.7-clean/libpri.h	2004-10-27 16:45:07.000000000 +0200
+++ libpri-1.0.7-clean-patched/libpri.h	2005-06-15 11:34:05.000000000 +0200
@@ -308,6 +308,7 @@
 typedef struct pri_event_proceeding {
 	int e;
 	int channel;
+	int cause;
 } pri_event_proceeding;
  
 typedef struct pri_event_setup_ack {
diff -Naur libpri-1.0.7-clean/q931.c libpri-1.0.7-clean-patched/q931.c
--- libpri-1.0.7-clean/q931.c	2004-10-05 04:19:11.000000000 +0200
+++ libpri-1.0.7-clean-patched/q931.c	2005-06-15 11:40:45.000000000 +0200
@@ -2469,6 +2469,7 @@
 	case Q931_ALERTING:
 	case Q931_PROGRESS:
 		c->progress = -1;
+		c->cause = -1;
 		break;
 	case Q931_CONNECT_ACKNOWLEDGE:
 		if (c->retranstimer)
@@ -2720,6 +2721,7 @@
 			q931_destroycall(pri, c->cr);
 			break;
 		}
+		pri->ev.proceeding.cause = c->cause;
 		pri->ev.e = PRI_EVENT_PROGRESS;
 		/* Fall through */
 	case Q931_CALL_PROCEEDING: