diff --git a/channels/chan_phone.c b/channels/chan_phone.c
index b7f82ea047bbc2cb866d273cc1ca06ddbd4d6fc2..d0ff80843ad0d21938832535236327ee61281cc0 100755
--- a/channels/chan_phone.c
+++ b/channels/chan_phone.c
@@ -141,7 +141,7 @@ static int phone_call(struct ast_channel *ast, char *dest, int timeout)
 	/* When we call, it just works, really, there's no destination...  Just
 	   ring the phone and wait for someone to answer */
 	if (option_debug)
-		ast_log(LOG_DEBUG, "Ringing %s on %s (%d)\n", dest, ast->name, ast->fd);
+		ast_log(LOG_DEBUG, "Ringing %s on %s (%d)\n", dest, ast->name, ast->fds[0]);
 	ioctl(p->fd, PHONE_RING_START);
 	ast->state = AST_STATE_RINGING;
 	return 0;
@@ -187,11 +187,11 @@ static int phone_hangup(struct ast_channel *ast)
 	p->dialtone = 0;
 	memset(p->ext, 0, sizeof(p->ext));
 	((struct phone_pvt *)(ast->pvt->pvt))->owner = NULL;
-	pthread_mutex_lock(&usecnt_lock);
+	ast_pthread_mutex_lock(&usecnt_lock);
 	usecnt--;
 	if (usecnt < 0) 
 		ast_log(LOG_WARNING, "Usecnt < 0???\n");
-	pthread_mutex_unlock(&usecnt_lock);
+	ast_pthread_mutex_unlock(&usecnt_lock);
 	ast_update_use_count();
 	if (option_verbose > 2) 
 		ast_verbose( VERBOSE_PREFIX_3 "Hungup '%s'\n", ast->name);
@@ -534,7 +534,7 @@ static struct ast_channel *phone_new(struct phone_pvt *i, int state, char *conte
 	if (tmp) {
 		snprintf(tmp->name, sizeof(tmp->name), "Phone/%s", i->dev + 5);
 		tmp->type = type;
-		tmp->fd = i->fd;
+		tmp->fds[0] = i->fd;
 		/* XXX Switching formats silently causes kernel panics XXX */
 		tmp->nativeformats = prefformat;
 		tmp->state = state;
@@ -554,13 +554,13 @@ static struct ast_channel *phone_new(struct phone_pvt *i, int state, char *conte
 		if (strlen(i->language))
 			strncpy(tmp->language, i->language, sizeof(tmp->language));
 		i->owner = tmp;
-		pthread_mutex_lock(&usecnt_lock);
+		ast_pthread_mutex_lock(&usecnt_lock);
 		usecnt++;
-		pthread_mutex_unlock(&usecnt_lock);
+		ast_pthread_mutex_unlock(&usecnt_lock);
 		ast_update_use_count();
 		if (state != AST_STATE_DOWN) {
 			if (state == AST_STATE_RING) {
-				ioctl(tmp->fd, PHONE_RINGBACK);
+				ioctl(tmp->fds[0], PHONE_RINGBACK);
 			}
 			if (ast_pbx_start(tmp)) {
 				ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
@@ -608,9 +608,9 @@ static void phone_check_exception(struct phone_pvt *i)
 				phone_new(i, AST_STATE_RING, i->context);
 				/* No need to restart monitor, we are the monitor */
 				if (i->owner) {
-					pthread_mutex_lock(&usecnt_lock);
+					ast_pthread_mutex_lock(&usecnt_lock);
 					usecnt--;
-					pthread_mutex_unlock(&usecnt_lock);
+					ast_pthread_mutex_unlock(&usecnt_lock);
 					ast_update_use_count();
 				}
 			} else if (!ast_canmatch_extension(NULL, i->context, i->ext, 1)) {
@@ -620,9 +620,9 @@ static void phone_check_exception(struct phone_pvt *i)
 					/* Check the default, too... */
 					phone_new(i, AST_STATE_RING, "default");
 					if (i->owner) {
-						pthread_mutex_lock(&usecnt_lock);
+						ast_pthread_mutex_lock(&usecnt_lock);
 						usecnt--;
-						pthread_mutex_unlock(&usecnt_lock);
+						ast_pthread_mutex_unlock(&usecnt_lock);
 						ast_update_use_count();
 					}
 					/* XXX This should probably be justified better XXX */
@@ -644,9 +644,9 @@ static void phone_check_exception(struct phone_pvt *i)
 			if (i->mode == MODE_IMMEDIATE) {
 				phone_new(i, AST_STATE_RING, i->context);
 			} else if (i->mode == MODE_DIALTONE) {
-				pthread_mutex_lock(&usecnt_lock);
+				ast_pthread_mutex_lock(&usecnt_lock);
 				usecnt++;
-				pthread_mutex_unlock(&usecnt_lock);
+				ast_pthread_mutex_unlock(&usecnt_lock);
 				ast_update_use_count();
 				/* Reset the extension */
 				i->ext[0] = '\0';
@@ -659,9 +659,9 @@ static void phone_check_exception(struct phone_pvt *i)
 			}
 		} else {
 			if (i->dialtone) {
-				pthread_mutex_lock(&usecnt_lock);
+				ast_pthread_mutex_lock(&usecnt_lock);
 				usecnt--;
-				pthread_mutex_unlock(&usecnt_lock);
+				ast_pthread_mutex_unlock(&usecnt_lock);
 				ast_update_use_count();
 			}
 			memset(i->ext, 0, sizeof(i->ext));
@@ -701,14 +701,14 @@ static void *do_monitor(void *data)
 	for(;;) {
 		/* Don't let anybody kill us right away.  Nobody should lock the interface list
 		   and wait for the monitor list, but the other way around is okay. */
-		if (pthread_mutex_lock(&monlock)) {
+		if (ast_pthread_mutex_lock(&monlock)) {
 			ast_log(LOG_ERROR, "Unable to grab monitor lock\n");
 			return NULL;
 		}
 		/* Lock the interface list */
-		if (pthread_mutex_lock(&iflock)) {
+		if (ast_pthread_mutex_lock(&iflock)) {
 			ast_log(LOG_ERROR, "Unable to grab interface lock\n");
-			pthread_mutex_unlock(&monlock);
+			ast_pthread_mutex_unlock(&monlock);
 			return NULL;
 		}
 		/* Build the stuff we're going to select on, that is the socket of every
@@ -742,10 +742,10 @@ static void *do_monitor(void *data)
 			i = i->next;
 		}
 		/* Okay, now that we know what to do, release the interface lock */
-		pthread_mutex_unlock(&iflock);
+		ast_pthread_mutex_unlock(&iflock);
 		
 		/* And from now on, we're okay to be killed, so release the monitor lock as well */
-		pthread_mutex_unlock(&monlock);
+		ast_pthread_mutex_unlock(&monlock);
 		/* Wait indefinitely for something to happen */
 		if (dotone) {
 			/* If we're ready to recycle the time, set it to 30 ms */
@@ -774,7 +774,7 @@ static void *do_monitor(void *data)
 			continue;
 		/* Alright, lock the interface list again, and let's look and see what has
 		   happened */
-		if (pthread_mutex_lock(&iflock)) {
+		if (ast_pthread_mutex_lock(&iflock)) {
 			ast_log(LOG_WARNING, "Unable to lock the interface list\n");
 			continue;
 		}
@@ -796,7 +796,7 @@ static void *do_monitor(void *data)
 			}
 			i=i->next;
 		}
-		pthread_mutex_unlock(&iflock);
+		ast_pthread_mutex_unlock(&iflock);
 	}
 	/* Never reached */
 	return NULL;
@@ -808,12 +808,12 @@ static int restart_monitor()
 	/* If we're supposed to be stopped -- stay stopped */
 	if (monitor_thread == -2)
 		return 0;
-	if (pthread_mutex_lock(&monlock)) {
+	if (ast_pthread_mutex_lock(&monlock)) {
 		ast_log(LOG_WARNING, "Unable to lock monitor\n");
 		return -1;
 	}
 	if (monitor_thread == pthread_self()) {
-		pthread_mutex_unlock(&monlock);
+		ast_pthread_mutex_unlock(&monlock);
 		ast_log(LOG_WARNING, "Cannot kill myself\n");
 		return -1;
 	}
@@ -825,11 +825,11 @@ static int restart_monitor()
 	}
 	/* Start a new monitor */
 	if (pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
-		pthread_mutex_unlock(&monlock);
+		ast_pthread_mutex_unlock(&monlock);
 		ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
 		return -1;
 	}
-	pthread_mutex_unlock(&monlock);
+	ast_pthread_mutex_unlock(&monlock);
 	return 0;
 }
 
@@ -900,7 +900,7 @@ static struct ast_channel *phone_request(char *type, int format, void *data)
 		return NULL;
 	}
 	/* Search for an unowned channel */
-	if (pthread_mutex_lock(&iflock)) {
+	if (ast_pthread_mutex_lock(&iflock)) {
 		ast_log(LOG_ERROR, "Unable to lock interface list???\n");
 		return NULL;
 	}
@@ -914,7 +914,7 @@ static struct ast_channel *phone_request(char *type, int format, void *data)
 		}
 		p = p->next;
 	}
-	pthread_mutex_unlock(&iflock);
+	ast_pthread_mutex_unlock(&iflock);
 	restart_monitor();
 	return tmp;
 }
@@ -932,7 +932,7 @@ int load_module()
 		ast_log(LOG_ERROR, "Unable to load config %s\n", config);
 		return -1;
 	}
-	if (pthread_mutex_lock(&iflock)) {
+	if (ast_pthread_mutex_lock(&iflock)) {
 		/* It's a little silly to lock it, but we mind as well just to be sure */
 		ast_log(LOG_ERROR, "Unable to lock interface list???\n");
 		return -1;
@@ -949,7 +949,7 @@ int load_module()
 				} else {
 					ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value);
 					ast_destroy(cfg);
-					pthread_mutex_unlock(&iflock);
+					ast_pthread_mutex_unlock(&iflock);
 					unload_module();
 					return -1;
 				}
@@ -973,7 +973,9 @@ int load_module()
 				prefformat = AST_FORMAT_G723_1;
 			} else if (!strcasecmp(v->value, "slinear")) {
 				prefformat = AST_FORMAT_SLINEAR;
-			} else 
+			} else if (!strcasecmp(v->value, "ulaw")) {
+				prefformat = AST_FORMAT_ULAW;
+			} else
 				ast_log(LOG_WARNING, "Unknown format '%s'\n", v->value);
 		} else if (!strcasecmp(v->name, "echocancel")) {
 			if (!strcasecmp(v->value, "off")) {
@@ -989,7 +991,7 @@ int load_module()
 		}
 		v = v->next;
 	}
-	pthread_mutex_unlock(&iflock);
+	ast_pthread_mutex_unlock(&iflock);
 	/* Make sure we can register our Adtranphone channel type */
 	if (ast_channel_register(type, tdesc, AST_FORMAT_G723_1, phone_request)) {
 		ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
@@ -1010,7 +1012,7 @@ int unload_module()
 	struct phone_pvt *p, *pl;
 	/* First, take us out of the channel loop */
 	ast_channel_unregister(type);
-	if (!pthread_mutex_lock(&iflock)) {
+	if (!ast_pthread_mutex_lock(&iflock)) {
 		/* Hangup all interfaces if they have an owner */
 		p = iflist;
 		while(p) {
@@ -1019,24 +1021,24 @@ int unload_module()
 			p = p->next;
 		}
 		iflist = NULL;
-		pthread_mutex_unlock(&iflock);
+		ast_pthread_mutex_unlock(&iflock);
 	} else {
 		ast_log(LOG_WARNING, "Unable to lock the monitor\n");
 		return -1;
 	}
-	if (!pthread_mutex_lock(&monlock)) {
+	if (!ast_pthread_mutex_lock(&monlock)) {
 		if (monitor_thread > -1) {
 			pthread_cancel(monitor_thread);
 			pthread_join(monitor_thread, NULL);
 		}
 		monitor_thread = -2;
-		pthread_mutex_unlock(&monlock);
+		ast_pthread_mutex_unlock(&monlock);
 	} else {
 		ast_log(LOG_WARNING, "Unable to lock the monitor\n");
 		return -1;
 	}
 
-	if (!pthread_mutex_lock(&iflock)) {
+	if (!ast_pthread_mutex_lock(&iflock)) {
 		/* Destroy all the interfaces and free their memory */
 		p = iflist;
 		while(p) {
@@ -1049,7 +1051,7 @@ int unload_module()
 			free(pl);
 		}
 		iflist = NULL;
-		pthread_mutex_unlock(&iflock);
+		ast_pthread_mutex_unlock(&iflock);
 	} else {
 		ast_log(LOG_WARNING, "Unable to lock the monitor\n");
 		return -1;
@@ -1061,9 +1063,9 @@ int unload_module()
 int usecount()
 {
 	int res;
-	pthread_mutex_lock(&usecnt_lock);
+	ast_pthread_mutex_lock(&usecnt_lock);
 	res = usecnt;
-	pthread_mutex_unlock(&usecnt_lock);
+	ast_pthread_mutex_unlock(&usecnt_lock);
 	return res;
 }