diff -ur asterisk.hangfix/channels/chan_alsa.c asterisk/channels/chan_alsa.c
--- asterisk.hangfix/channels/chan_alsa.c	2004-04-08 03:26:11.178825488 +0100
+++ asterisk/channels/chan_alsa.c	2004-04-07 17:46:39.000000000 +0100
@@ -267,9 +267,9 @@
 	while (hookstate) {
 		/* When no doing announcements */
 		if (driver->cursound > -1) {
-			res = poll(&driver->pfd[0], driver->playback_nfds, 1000);
+			res = poll(&driver->pfd[0], driver->playback_nfds, -1);
 		} else {
-			res = poll(&driver->pfd[ci], driver->capture_nfds, 1000);
+			res = poll(&driver->pfd[ci], driver->capture_nfds, -1);
 		}
 
 		/* When doing announcements */
@@ -282,7 +282,7 @@
 			}
 		} else {
 		snd_pcm_poll_descriptors_revents(driver->capture_handle, &driver->pfd[ci], driver->capture_nfds, &revents);
-	        if ((revents & POLLERR) && (hookstate)) {
+	        if (revents & POLLERR) {
 			alsa_state = snd_pcm_state(driver->capture_handle);
 			if (alsa_state == SND_PCM_STATE_XRUN) {
 				snd_pcm_prepare(driver->capture_handle);
@@ -292,7 +292,7 @@
 				snd_pcm_start(driver->capture_handle);
 			}
 		}
-	        if ((revents & POLLIN) && (hookstate)) {
+	        if (revents & POLLIN) {
 			if (sound_capture(driver)) {
 				ast_log(LOG_WARNING, "Failed to read sound\n");
 			}