Index: channels/sig_ss7.c
===================================================================
--- channels/sig_ss7.c	(revision 355573)
+++ channels/sig_ss7.c	(working copy)
@@ -1656,6 +1656,8 @@
 	switch (condition) {
 	case AST_CONTROL_BUSY:
 		res = sig_ss7_play_tone(p, SIG_SS7_TONE_BUSY);
+		chan->hangupcause = AST_CAUSE_USER_BUSY;
+		sig_ss7_hangup(p,chan);
 		break;
 	case AST_CONTROL_RINGING:
 		ss7_grab(p, p->ss7);
@@ -1719,9 +1721,11 @@
 			break;
 		}
 		chan->hangupcause = AST_CAUSE_INVALID_NUMBER_FORMAT;
+		sig_ss7_hangup(p,chan);
 		break;
 	case AST_CONTROL_CONGESTION:
 		chan->hangupcause = AST_CAUSE_CONGESTION;
+		sig_ss7_hangup(p,chan);
 		break;
 	case AST_CONTROL_HOLD:
 		ast_moh_start(chan, data, p->mohinterpret);