Index: channels/chan_alsa.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_alsa.c,v
retrieving revision 1.52
diff -u -r1.52 chan_alsa.c
--- channels/chan_alsa.c	6 Nov 2005 15:09:46 -0000	1.52
+++ channels/chan_alsa.c	15 Nov 2005 18:57:26 -0000
@@ -582,8 +582,14 @@
 	usecnt--;
 	ast_mutex_unlock(&usecnt_lock);
 	if (hookstate) {
-		res = 2;
-		write(sndcmd[1], &res, sizeof(res));
+		if (autoanswer) {
+			hookstate = 0;
+		} else {
+			/* Congestion noise */
+			res = 2;
+			write(sndcmd[1], &res, sizeof(res));
+			hookstate = 0;
+		}
 	}
 	snd_pcm_drop(alsa.icard);
 	ast_mutex_unlock(&alsalock);
Index: channels/chan_oss_old.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_oss_old.c,v
retrieving revision 1.4
diff -u -r1.4 chan_oss_old.c
--- channels/chan_oss_old.c	6 Nov 2005 15:09:46 -0000	1.4
+++ channels/chan_oss_old.c	15 Nov 2005 18:57:26 -0000
@@ -565,6 +565,7 @@
 			/* Make congestion noise */
 			res = 2;
 			write(sndcmd[1], &res, sizeof(res));
+			hookstate = 0;
 		}
 	}
 	return 0;