diff -NaurbB old/chan_alsa.c new/chan_alsa.c
--- old/chan_alsa.c	2008-05-29 18:42:28.000000000 +0100
+++ new/chan_alsa.c	2009-03-16 14:51:23.000000000 +0000
@@ -128,6 +128,8 @@
 static int writedev = -1;
 
 static int autoanswer = 1;
+static int mute = 0;
+static int noaudiocapture = 0;
 
 static struct ast_channel *alsa_request(const char *type, int format, void *data, int *cause);
 static int alsa_digit(struct ast_channel *c, char digit, unsigned int duration);
@@ -264,15 +266,22 @@
 
 static int soundcard_init(void)
 {
+	if(!noaudiocapture) {
 	alsa.icard = alsa_card_init(indevname, SND_PCM_STREAM_CAPTURE);
+		if (!alsa.icard) {
+			ast_log(LOG_ERROR, "Problem opening alsa capture device\n");
+			return -1;
+		}
+	}
+
 	alsa.ocard = alsa_card_init(outdevname, SND_PCM_STREAM_PLAYBACK);
 
-	if (!alsa.icard || !alsa.ocard) {
-		ast_log(LOG_ERROR, "Problem opening ALSA I/O devices\n");
+	if (!alsa.ocard) {
+		ast_log(LOG_ERROR, "Problem opening ALSA playback device\n");
 		return -1;
 	}
 
-	return readdev;
+	return writedev;
 }
 
 static int alsa_digit(struct ast_channel *c, char digit, unsigned int duration)
@@ -309,6 +318,9 @@
 	ast_verbose(" << Call placed to '%s' on console >> \n", dest);
 	if (autoanswer) {
 		ast_verbose(" << Auto-answered >> \n");
+		if (mute) {
+			ast_verbose( " << Muted >> \n" );
+		}
 		grab_owner();
 		if (alsa.owner) {
 			f.subclass = AST_CONTROL_ANSWER;
@@ -325,8 +337,10 @@
 			ast_indicate(alsa.owner, AST_CONTROL_RINGING);
 		}
 	}
+	if(!noaudiocapture) {
 	snd_pcm_prepare(alsa.icard);
 	snd_pcm_start(alsa.icard);
+	}
 	ast_mutex_unlock(&alsalock);
 
 	return 0;
@@ -337,8 +351,10 @@
 	ast_mutex_lock(&alsalock);
 	ast_verbose(" << Console call has been answered >> \n");
 	ast_setstate(c, AST_STATE_UP);
+	if(!noaudiocapture) {
 	snd_pcm_prepare(alsa.icard);
 	snd_pcm_start(alsa.icard);
+	}
 	ast_mutex_unlock(&alsalock);
 
 	return 0;
@@ -352,7 +368,9 @@
 	ast_verbose(" << Hangup on console >> \n");
 	ast_module_unref(ast_module_info->self);
 	hookstate = 0;
+	if(!noaudiocapture) {
 	snd_pcm_drop(alsa.icard);
+	}
 	ast_mutex_unlock(&alsalock);
 
 	return 0;
@@ -431,6 +449,12 @@
 	f.delivery.tv_sec = 0;
 	f.delivery.tv_usec = 0;
 
+	if (noaudiocapture) {
+		/* Return null frame to asterisk*/
+		ast_mutex_unlock(&alsalock);
+		return &f;
+	}
+
 	state = snd_pcm_state(alsa.icard);
 	if ((state != SND_PCM_STATE_PREPARED) && (state != SND_PCM_STATE_RUNNING)) {
 		snd_pcm_prepare(alsa.icard);
@@ -465,6 +489,12 @@
 			ast_mutex_unlock(&alsalock);
 			return &f;
 		}
+		if (mute) {
+			/* Don't transmit if muted */
+			ast_mutex_unlock(&alsalock);
+			return &f;
+		}
+
 		f.frametype = AST_FRAME_VOICE;
 		f.subclass = AST_FORMAT_SLINEAR;
 		f.samples = FRAME_SIZE;
@@ -664,6 +694,9 @@
 		ast_cli(a->fd, "No one is calling us\n");
 		res = CLI_FAILURE;
 	} else {
+		if (mute) {
+			ast_verbose( " << Muted >> \n" );
+		}
 		hookstate = 1;
 		grab_owner();
 		if (alsa.owner) {
@@ -674,8 +707,10 @@
 		}
 	}
 
+	if(!noaudiocapture) {
 	snd_pcm_prepare(alsa.icard);
 	snd_pcm_start(alsa.icard);
+	}
 
 	ast_mutex_unlock(&alsalock);
 
@@ -838,12 +873,54 @@
 	return res;
 }
 
+static char *console_mute(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
+{
+	int toggle = 0;
+	char *res = CLI_SUCCESS;
+
+	switch (cmd) {
+	case CLI_INIT:
+		e->command = "console {mute|unmute} [toggle]";
+		e->usage =
+			"Usage: console {mute|unmute} [toggle]\n"
+			"       Mute/unmute the microphone.\n";
+		return NULL;
+	case CLI_GENERATE:
+		return NULL; 
+	}
+ 
+
+	if (a->argc > 3)
+		return CLI_SHOWUSAGE;
+
+	if (a->argc == 3) {
+		if (strcasecmp(a->argv[2], "toggle"))
+			return CLI_SHOWUSAGE;
+		toggle = 1;
+	}
+	
+	if (a->argc < 2)
+		return CLI_SHOWUSAGE;
+
+	if (!strcasecmp(a->argv[1], "mute"))
+		o->mute = toggle ? ~o->mute : 1;
+	else if (!strcasecmp(a->argv[1], "unmute"))
+		o->mute = toggle ? ~o->mute : 0;
+	else
+		return CLI_SHOWUSAGE;
+	
+	ast_cli(a->fd, "Console mic is %s\n", o->mute ? "off" : "on");
+
+	return res;
+}
+
 static struct ast_cli_entry cli_alsa[] = {
 	AST_CLI_DEFINE(console_answer, "Answer an incoming console call"),
 	AST_CLI_DEFINE(console_hangup, "Hangup a call on the console"),
 	AST_CLI_DEFINE(console_dial, "Dial an extension on the console"),
 	AST_CLI_DEFINE(console_sendtext, "Send text to the remote device"),
 	AST_CLI_DEFINE(console_autoanswer, "Sets/displays autoanswer"),
+	AST_CLI_DEFINE(console_mute, "Disable/Enable mic input"),
 };
 
 static int load_module(void)
@@ -868,6 +945,10 @@
 		
 		if (!strcasecmp(v->name, "autoanswer"))
 			autoanswer = ast_true(v->value);
+		else if (!strcasecmp(v->name, "mute"))
+			mute = ast_true(v->value);
+		else if (!strcasecmp(v->name, "noaudiocapture"))
+			noaudiocapture = ast_true(v->value);
 		else if (!strcasecmp(v->name, "silencesuppression"))
 			silencesuppression = ast_true(v->value);
 		else if (!strcasecmp(v->name, "silencethreshold"))