diff --git a/plugins/atgen.c b/plugins/atgen.c
index 1388dfa7..c0fbbb2f 100644
--- a/plugins/atgen.c
+++ b/plugins/atgen.c
@@ -28,6 +28,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -64,6 +65,7 @@ static void atgen_debug(const char *str, void *user_data)
 static int atgen_enable(struct ofono_modem *modem)
 {
 	GAtChat *chat;
+	GIOChannel *channel;
 	GAtSyntax *syntax;
 	const char *device;
 
@@ -73,9 +75,14 @@ static int atgen_enable(struct ofono_modem *modem)
 	if (!device)
 		return -EINVAL;
 
+	channel = g_at_tty_open(device, NULL);
+	if (!channel)
+		return -EIO;
+
 	syntax = g_at_syntax_new_gsmv1();
-	chat = g_at_chat_new_from_tty(device, syntax);
+	chat = g_at_chat_new(channel, syntax);
 	g_at_syntax_unref(syntax);
+	g_io_channel_unref(channel);
 
 	if (!chat)
 		return -ENOMEM;
diff --git a/plugins/calypso.c b/plugins/calypso.c
index 150801f9..16d4cb13 100644
--- a/plugins/calypso.c
+++ b/plugins/calypso.c
@@ -33,6 +33,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -179,39 +180,29 @@ static void modem_initialize(struct ofono_modem *modem)
 	GIOChannel *io;
 	int sk;
 	struct termios ti;
+	GHashTable *options;
 
 	DBG("");
 
 	device = ofono_modem_get_string(modem, "Device");
 
-	sk = open(device, O_RDWR | O_NOCTTY);
-
-	if (sk < 0)
+	options = g_hash_table_new(g_str_hash, g_str_equal);
+	if (options == NULL)
 		goto error;
 
-	tcflush(sk, TCIOFLUSH);
+	g_hash_table_insert(options, "baud", "115200");
+	g_hash_table_insert(options, "parity", "none");
+	g_hash_table_insert(options, "stopbits", "1");
+	g_hash_table_insert(options, "databits", "8");
+	g_hash_table_insert(options, "xonxoff", "on");
+	g_hash_table_insert(options, "local", "on");
+	g_hash_table_insert(options, "rtscts", "on");
 
-	/* Switch TTY to raw mode */
-	memset(&ti, 0, sizeof(ti));
-	cfmakeraw(&ti);
+	io = g_at_tty_open(device, options);
+	g_hash_table_destroy(options);
 
-	cfsetospeed(&ti, B115200);
-	cfsetispeed(&ti, B115200);
-
-	ti.c_cflag &= ~(PARENB);
-	ti.c_cflag &= ~(CSTOPB);
-	ti.c_cflag &= ~(CSIZE);
-	ti.c_cflag |= CS8;
-	ti.c_cflag |= CRTSCTS;
-	ti.c_cflag |= CLOCAL;
-	ti.c_iflag |= (IXON | IXOFF | IXANY);
-	ti.c_cc[VSTART] = 17;
-	ti.c_cc[VSTOP] = 19;
-
-	tcsetattr(sk, TCSANOW, &ti);
-
-	io = g_io_channel_unix_new(sk);
-	g_io_channel_set_close_on_unref(io, TRUE);
+	if (io == NULL)
+		goto error;
 
 	/* Calypso is normally compliant to 27.007, except the vendor-specific
 	 * notifications (like %CSTAT) are not prefixed by \r\n
diff --git a/plugins/g1.c b/plugins/g1.c
index 0414f495..aeb38b10 100644
--- a/plugins/g1.c
+++ b/plugins/g1.c
@@ -28,6 +28,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -81,6 +82,7 @@ static void cfun_set_on_cb(gboolean ok, GAtResult *result, gpointer user_data)
 static int g1_enable(struct ofono_modem *modem)
 {
 	GAtSyntax *syntax;
+	GIOChannel *channel;
 	GAtChat *chat;
 	const char *device;
 
@@ -90,8 +92,13 @@ static int g1_enable(struct ofono_modem *modem)
 	if (device == NULL)
 		return -EINVAL;
 
+	channel = g_at_tty_open(device, NULL);
+	if (channel == NULL)
+		return -EIO;
+
 	syntax = g_at_syntax_new_gsm_permissive();
-	chat = g_at_chat_new_from_tty(device, syntax);
+	chat = g_at_chat_new(channel, syntax);
+	g_io_channel_unref(channel);
 	g_at_syntax_unref(syntax);
 
 	if (chat == NULL)
diff --git a/plugins/hso.c b/plugins/hso.c
index e678aab3..b1cc6663 100644
--- a/plugins/hso.c
+++ b/plugins/hso.c
@@ -29,6 +29,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -88,6 +89,7 @@ static int hso_enable(struct ofono_modem *modem)
 {
 	struct hso_data *data = ofono_modem_get_data(modem);
 	GAtSyntax *syntax;
+	GIOChannel *channel;
 	const char *device;
 
 	DBG("%p", modem);
@@ -99,9 +101,14 @@ static int hso_enable(struct ofono_modem *modem)
 			return -EINVAL;
 	}
 
+	channel = g_at_tty_open(device, NULL);
+	if (!channel)
+		return -EIO;
+
 	syntax = g_at_syntax_new_gsmv1();
-	data->chat = g_at_chat_new_from_tty(device, syntax);
+	data->chat = g_at_chat_new(channel, syntax);
 	g_at_syntax_unref(syntax);
+	g_io_channel_unref(channel);
 
 	if (!data->chat)
 		return -EIO;
diff --git a/plugins/huawei.c b/plugins/huawei.c
index 392804da..17548460 100644
--- a/plugins/huawei.c
+++ b/plugins/huawei.c
@@ -29,6 +29,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -87,6 +88,7 @@ static int huawei_enable(struct ofono_modem *modem)
 {
 	struct huawei_data *data = ofono_modem_get_data(modem);
 	GAtSyntax *syntax;
+	GIOChannel *channel;
 	const char *device;
 
 	DBG("%p", modem);
@@ -95,9 +97,14 @@ static int huawei_enable(struct ofono_modem *modem)
 	if (!device)
 			return -EINVAL;
 
+	channel = g_at_tty_open(device, NULL);
+	if (!channel)
+		return -EIO;
+
 	syntax = g_at_syntax_new_gsmv1();
-	data->chat = g_at_chat_new_from_tty(device, syntax);
+	data->chat = g_at_chat_new(channel, syntax);
 	g_at_syntax_unref(syntax);
+	g_io_channel_unref(channel);
 
 	if (!data->chat)
 		return -EIO;
diff --git a/plugins/mbm.c b/plugins/mbm.c
index ce27d47f..40568f5e 100644
--- a/plugins/mbm.c
+++ b/plugins/mbm.c
@@ -29,6 +29,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -87,6 +88,7 @@ static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
 static int mbm_enable(struct ofono_modem *modem)
 {
 	struct mbm_data *data = ofono_modem_get_data(modem);
+	GIOChannel *channel;
 	GAtSyntax *syntax;
 	const char *device;
 
@@ -99,9 +101,14 @@ static int mbm_enable(struct ofono_modem *modem)
 			return -EINVAL;
 	}
 
+	channel = g_at_tty_open(device, NULL);
+	if (!channel)
+		return -EIO;
+
 	syntax = g_at_syntax_new_gsmv1();
-	data->chat = g_at_chat_new_from_tty(device, syntax);
+	data->chat = g_at_chat_new(channel, syntax);
 	g_at_syntax_unref(syntax);
+	g_io_channel_unref(channel);
 
 	if (!data->chat)
 		return -EIO;
diff --git a/plugins/novatel.c b/plugins/novatel.c
index adbb36ae..b140a8a2 100644
--- a/plugins/novatel.c
+++ b/plugins/novatel.c
@@ -29,6 +29,7 @@
 
 #include <glib.h>
 #include <gatchat.h>
+#include <gattty.h>
 
 #define OFONO_API_SUBJECT_TO_CHANGE
 #include <ofono/plugin.h>
@@ -87,6 +88,7 @@ static int novatel_enable(struct ofono_modem *modem)
 {
 	struct novatel_data *data = ofono_modem_get_data(modem);
 	GAtSyntax *syntax;
+	GIOChannel *channel;
 	const char *device;
 
 	DBG("%p", modem);
@@ -95,9 +97,14 @@ static int novatel_enable(struct ofono_modem *modem)
 	if (!device)
 			return -EINVAL;
 
+	channel = g_at_tty_open(device, NULL);
+	if (!channel)
+		return -EIO;
+
 	syntax = g_at_syntax_new_gsmv1();
-	data->chat = g_at_chat_new_from_tty(device, syntax);
+	data->chat = g_at_chat_new(channel, syntax);
 	g_at_syntax_unref(syntax);
+	g_io_channel_unref(channel);
 
 	if (!data->chat)
 		return -EIO;