diff --git a/conf/freeswitch.xml b/conf/freeswitch.xml
index dfabe2a31e..0d1fdd128b 100644
--- a/conf/freeswitch.xml
+++ b/conf/freeswitch.xml
@@ -30,6 +30,7 @@
     <!--#include "woomera.conf.xml"-->
     <!--#include "wanpipe.conf.xml"-->
     <!--#include "portaudio.conf.xml"-->
+    <!--#include "alsa.conf.xml"-->
     <!--#include "zeroconf.conf.xml"-->
     <!--#include "xmpp_event.conf.xml"-->
     <!--#include "dialplan_directory.conf.xml"-->
diff --git a/conf/modules.conf.xml b/conf/modules.conf.xml
index b019c91f4a..67b8e1f08b 100644
--- a/conf/modules.conf.xml
+++ b/conf/modules.conf.xml
@@ -27,6 +27,7 @@
     <!-- <load module="mod_dingaling"/> -->
     <!--<load module="mod_iax"/>-->
     <load module="mod_portaudio"/>
+    <load module="mod_alsa"/>
     <load module="mod_sofia"/>
     <!-- <load module="mod_wanpipe"/> -->
     <!-- <load module="mod_woomera"/> -->
diff --git a/src/mod/endpoints/mod_alsa/Makefile b/src/mod/endpoints/mod_alsa/Makefile
new file mode 100644
index 0000000000..8765118804
--- /dev/null
+++ b/src/mod/endpoints/mod_alsa/Makefile
@@ -0,0 +1,10 @@
+BASE=../../../..
+
+LOCAL_CFLAGS=-I. -I$(PA_DIR)/include -D__EXTENSION__=1
+LOCAL_LDFLAGS=-lasound
+LOCAL_OBJS=
+LOCAL_SOURCES=
+
+include $(BASE)/build/modmake.rules
+
+$(LOCAL_OBJS): $(LOCAL_SOURCES)
diff --git a/src/mod/endpoints/mod_alsa/mod_alsa.c b/src/mod/endpoints/mod_alsa/mod_alsa.c
new file mode 100644
index 0000000000..86e47f1cdb
--- /dev/null
+++ b/src/mod/endpoints/mod_alsa/mod_alsa.c
@@ -0,0 +1,1731 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct@yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Anthony Minessale II <anthmct@yahoo.com>
+ *
+ *
+ * mod_portaudio.c -- PortAudio Endpoint Module
+ *
+ */
+#include <switch.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <string.h>
+#include <alsa/asoundlib.h>
+
+#define MY_EVENT_RINGING "alsa::ringing"
+
+static const char modname[] = "mod_alsa";
+
+static switch_memory_pool_t *module_pool = NULL;
+//static int running = 1;
+
+#define SAMPLE_TYPE  paInt16
+//#define SAMPLE_TYPE  paFloat32
+typedef short SAMPLE;
+
+typedef switch_status_t (*pa_command_t) (char **argv, int argc, switch_stream_handle_t *stream);
+
+typedef enum {
+	GFLAG_NONE = 0,
+	GFLAG_EAR = (1 << 0),
+	GFLAG_MOUTH = (1 << 1),
+	GFLAG_RING = (1 << 2)
+} GFLAGS;
+
+typedef enum {
+	TFLAG_IO = (1 << 0),
+	TFLAG_INBOUND = (1 << 1),
+	TFLAG_OUTBOUND = (1 << 2),
+	TFLAG_DTMF = (1 << 3),
+	TFLAG_VOICE = (1 << 4),
+	TFLAG_HANGUP = (1 << 5),
+	TFLAG_LINEAR = (1 << 6),
+	TFLAG_ANSWER = (1 << 7),
+	TFLAG_HUP = (1 << 8),
+	TFLAG_MASTER = (1 << 9)
+} TFLAGS;
+
+struct private_object {
+	unsigned int flags;
+	switch_core_session_t *session;
+	switch_caller_profile_t *caller_profile;
+	char call_id[50];
+	int sample_rate;
+	int codec_ms;
+	switch_mutex_t *flag_mutex;
+	char *hold_file;
+	switch_file_handle_t fh;
+	switch_file_handle_t *hfh;
+	switch_frame_t hold_frame;
+	unsigned char holdbuf[SWITCH_RECOMMENDED_BUFFER_SIZE];
+	switch_codec_t write_codec;
+	switch_timer_t timer;
+	struct private_object *next;
+};
+
+typedef struct private_object private_t;
+
+static struct {
+	int debug;
+	int port;
+	char *cid_name;
+	char *cid_num;
+	char *dialplan;
+	char *ring_file;
+	char *hold_file;
+	char *timer_name;
+	int call_id;
+	switch_hash_t *call_hash;
+	switch_mutex_t *device_lock;
+	switch_mutex_t *pvt_lock;
+	switch_mutex_t *flag_mutex;
+	int sample_rate;
+	int codec_ms;
+	snd_pcm_t *audio_stream_in;
+	snd_pcm_t *audio_stream_out;
+	snd_pcm_t *ring_stream;
+
+	switch_codec_t read_codec;
+	switch_codec_t write_codec;
+	switch_frame_t read_frame;
+	switch_frame_t cng_frame;
+	unsigned char databuf[SWITCH_RECOMMENDED_BUFFER_SIZE];
+	unsigned char cngbuf[SWITCH_RECOMMENDED_BUFFER_SIZE];
+	private_t *call_list;
+	int ring_interval;
+	GFLAGS flags;
+	switch_timer_t timer;
+} globals;
+
+
+#define PA_MASTER 1
+#define PA_SLAVE 0
+
+
+SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_dialplan, globals.dialplan)
+	SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_cid_name, globals.cid_name)
+	SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_cid_num, globals.cid_num)
+	SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_ring_file, globals.ring_file)
+	SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_hold_file, globals.hold_file)
+	SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_timer_name, globals.timer_name)
+#define is_master(t) switch_test_flag(t, TFLAG_MASTER)
+	 static void add_pvt(private_t * tech_pvt, int master);
+	 static void remove_pvt(private_t * tech_pvt);
+	 static switch_status_t channel_on_init(switch_core_session_t *session);
+	 static switch_status_t channel_on_hangup(switch_core_session_t *session);
+	 static switch_status_t channel_on_ring(switch_core_session_t *session);
+	 static switch_status_t channel_on_loopback(switch_core_session_t *session);
+	 static switch_status_t channel_on_transmit(switch_core_session_t *session);
+	 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session,
+														 switch_caller_profile_t *outbound_profile,
+														 switch_core_session_t **new_session, switch_memory_pool_t **pool);
+	 static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout, switch_io_flag_t flags, int stream_id);
+	 static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout, switch_io_flag_t flags, int stream_id);
+	 static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig);
+	 static switch_status_t engage_device(unsigned int samplerate, int codec_ms);
+	 static switch_status_t engage_ring_device(unsigned int sample_rate, int channels);
+	 static void deactivate_ring_device(void);
+
+	 static switch_status_t load_config(void);
+	 static switch_status_t pa_cmd(char *dest, switch_core_session_t *session, switch_stream_handle_t *stream);
+	 static switch_status_t padep(char *dest, switch_core_session_t *session, switch_stream_handle_t *stream);
+
+
+/* 
+   State methods they get called when the state changes to the specific state 
+   returning SWITCH_STATUS_SUCCESS tells the core to execute the standard state method next
+   so if you fully implement the state you can return SWITCH_STATUS_FALSE to skip it.
+*/
+	 static switch_status_t channel_on_init(switch_core_session_t *session)
+{
+	switch_channel_t *channel;
+	private_t *tech_pvt = NULL;
+	switch_time_t last;
+	int waitsec = globals.ring_interval * 1000000;
+	switch_file_handle_t fh = { 0 };
+	char *val, *ring_file = NULL, *hold_file = NULL;
+	int16_t abuf[2048];
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+
+	last = switch_time_now() - waitsec;
+
+
+
+	if ((val = switch_channel_get_variable(channel, "pa_hold_file"))) {
+		hold_file = val;
+	} else {
+		hold_file = globals.hold_file;
+	}
+
+	if (hold_file) {
+		tech_pvt->hold_file = switch_core_session_strdup(session, hold_file);
+	}
+
+	if (switch_test_flag(tech_pvt, TFLAG_OUTBOUND)) {
+
+
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL INIT %d %d\n",
+						  switch_channel_get_name(channel), switch_channel_get_state(channel), switch_test_flag(tech_pvt, TFLAG_ANSWER));
+
+
+
+		if (engage_device(tech_pvt->sample_rate, tech_pvt->codec_ms) != SWITCH_STATUS_SUCCESS) {
+			switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
+			return SWITCH_STATUS_FALSE;
+		}
+
+		if (switch_test_flag(tech_pvt, TFLAG_OUTBOUND)) {
+			add_pvt(tech_pvt, PA_SLAVE);
+
+			ring_file = globals.ring_file;
+			if ((val = switch_channel_get_variable(channel, "pa_ring_file"))) {
+				ring_file = val;
+			}
+
+			if (switch_test_flag((&globals), GFLAG_RING)) {
+				ring_file = NULL;
+			}
+			switch_set_flag_locked((&globals), GFLAG_RING);
+			if (ring_file) {
+				if (switch_core_file_open(&fh,
+										  ring_file,
+										  globals.read_codec.implementation->number_of_channels,
+										  globals.read_codec.implementation->samples_per_second,
+										  SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT, NULL) == SWITCH_STATUS_SUCCESS) {
+
+					if (engage_ring_device(fh.samplerate, fh.channels) != SWITCH_STATUS_SUCCESS) {
+						switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
+						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Ring Error!\n");
+						switch_core_file_close(&fh);
+						return SWITCH_STATUS_GENERR;
+					}
+				} else {
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot open %s, disabling ring file!\n", ring_file);
+					ring_file = NULL;
+				}
+			}
+		}
+
+		switch_core_session_queue_indication(session, SWITCH_MESSAGE_INDICATE_RINGING);
+		switch_channel_mark_ring_ready(channel);
+
+		while (switch_channel_get_state(channel) == CS_INIT && !switch_test_flag(tech_pvt, TFLAG_ANSWER)) {
+			if (switch_time_now() - last >= waitsec) {
+				char buf[512];
+				switch_event_t *event;
+
+				snprintf(buf, sizeof(buf), "BRRRRING! BRRRRING! call %s\n", tech_pvt->call_id);
+
+				if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, MY_EVENT_RINGING) == SWITCH_STATUS_SUCCESS) {
+					switch_event_add_header(event, SWITCH_STACK_BOTTOM, "event_info", "%s", buf);
+					switch_event_add_header(event, SWITCH_STACK_BOTTOM, "call_id", "%s", tech_pvt->call_id);
+					switch_channel_event_set_data(channel, event);
+					switch_event_fire(&event);
+				}
+
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s\n", buf);
+				last = switch_time_now();
+				if (ring_file) {
+					unsigned int pos = 0;
+					switch_core_file_seek(&fh, &pos, 0, SEEK_SET);
+					for (;;) {
+						switch_size_t olen = 1024;
+						switch_core_file_read(&fh, abuf, &olen);
+						if (olen == 0) {
+							break;
+						}
+						snd_pcm_writei(globals.ring_stream, abuf, (int) olen);
+					}
+				}
+			}
+
+			switch_yield(globals.read_codec.implementation->microseconds_per_frame);
+
+		}
+		switch_clear_flag_locked((&globals), GFLAG_RING);
+	}
+
+	if (ring_file) {
+		deactivate_ring_device();
+		switch_core_file_close(&fh);
+		switch_core_codec_destroy(&tech_pvt->write_codec);
+		switch_core_timer_destroy(&tech_pvt->timer);
+	}
+
+	if (switch_test_flag(tech_pvt, TFLAG_OUTBOUND)) {
+		if (!switch_test_flag(tech_pvt, TFLAG_ANSWER)) {
+			switch_channel_hangup(channel, SWITCH_CAUSE_NO_ANSWER);
+			return SWITCH_STATUS_SUCCESS;
+		}
+	}
+
+	switch_set_flag_locked(tech_pvt, TFLAG_IO);
+
+	/* Move Channel's State Machine to RING */
+	switch_channel_set_state(channel, CS_RING);
+
+	return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t channel_on_ring(switch_core_session_t *session)
+{
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL RING\n", switch_channel_get_name(channel));
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_execute(switch_core_session_t *session)
+{
+
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
+
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static void deactivate_audio_device(void)
+{
+	switch_mutex_lock(globals.device_lock);
+	if (globals.audio_stream_in) {
+		snd_pcm_close(globals.audio_stream_in);
+		globals.audio_stream_in = NULL;
+	}
+	if (globals.audio_stream_out) {
+		snd_pcm_close(globals.audio_stream_out);
+		globals.audio_stream_out = NULL;
+	}
+	switch_mutex_unlock(globals.device_lock);
+}
+
+
+static void deactivate_ring_device(void)
+{
+	switch_mutex_lock(globals.device_lock);
+	if (globals.ring_stream) {
+		snd_pcm_close(globals.ring_stream);
+		globals.ring_stream = NULL;
+	}
+	switch_mutex_unlock(globals.device_lock);
+}
+
+
+
+static void add_pvt(private_t * tech_pvt, int master)
+{
+	private_t *tp;
+	uint8_t in_list = 0;
+
+	switch_mutex_lock(globals.pvt_lock);
+
+	if (switch_strlen_zero(tech_pvt->call_id)) {
+		snprintf(tech_pvt->call_id, sizeof(tech_pvt->call_id), "%d", ++globals.call_id);
+		switch_core_hash_insert(globals.call_hash, tech_pvt->call_id, tech_pvt);
+		switch_core_session_set_read_codec(tech_pvt->session, &globals.read_codec);
+		switch_core_session_set_write_codec(tech_pvt->session, &globals.write_codec);
+	}
+
+	for (tp = globals.call_list; tp; tp = tp->next) {
+		if (tp == tech_pvt) {
+			in_list = 1;
+		}
+		if (master) {
+			switch_clear_flag_locked(tp, TFLAG_MASTER);
+		}
+	}
+
+
+	if (master) {
+		if (!in_list) {
+			tech_pvt->next = globals.call_list;
+			globals.call_list = tech_pvt;
+		}
+		switch_set_flag_locked(tech_pvt, TFLAG_MASTER);
+
+	} else if (!in_list) {
+		for (tp = globals.call_list; tp && tp->next; tp = tp->next);
+		if (tp) {
+			tp->next = tech_pvt;
+		} else {
+			globals.call_list = tech_pvt;
+		}
+	}
+
+	switch_mutex_unlock(globals.pvt_lock);
+}
+
+static void remove_pvt(private_t * tech_pvt)
+{
+	private_t *tp, *last = NULL;
+
+	switch_mutex_lock(globals.pvt_lock);
+	for (tp = globals.call_list; tp; tp = tp->next) {
+		switch_clear_flag_locked(tp, TFLAG_MASTER);
+		if (tp == tech_pvt) {
+			if (last) {
+				last->next = tp->next;
+			} else {
+				globals.call_list = tp->next;
+			}
+		}
+		last = tp;
+	}
+
+	if (globals.call_list) {
+		switch_set_flag_locked(globals.call_list, TFLAG_MASTER);
+	} else {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No more channels, deactivating audio\n");
+		deactivate_audio_device();
+	}
+
+	switch_mutex_unlock(globals.pvt_lock);
+}
+
+static switch_status_t channel_on_hangup(switch_core_session_t *session)
+{
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	remove_pvt(tech_pvt);
+
+	switch_clear_flag_locked(tech_pvt, TFLAG_IO);
+	switch_set_flag_locked(tech_pvt, TFLAG_HUP);
+
+	switch_core_hash_delete(globals.call_hash, tech_pvt->call_id);
+
+	if (tech_pvt->hfh) {
+		tech_pvt->hfh = NULL;
+		switch_core_file_close(&tech_pvt->fh);
+	}
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig)
+{
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch (sig) {
+	case SWITCH_SIG_KILL:
+		switch_set_flag_locked(tech_pvt, TFLAG_HUP);
+		switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);
+		break;
+	default:
+		break;
+	}
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL KILL\n", switch_channel_get_name(channel));
+
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_transmit(switch_core_session_t *session)
+{
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "CHANNEL TRANSMIT\n");
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_loopback(switch_core_session_t *session)
+{
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "CHANNEL LOOPBACK\n");
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+
+static switch_status_t channel_waitfor_read(switch_core_session_t *session, int ms, int stream_id)
+{
+	private_t *tech_pvt = NULL;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_waitfor_write(switch_core_session_t *session, int ms, int stream_id)
+{
+	private_t *tech_pvt = NULL;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t channel_send_dtmf(switch_core_session_t *session, char *dtmf)
+{
+	private_t *tech_pvt = NULL;
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "DTMF ON CALL %s [%s]\n", tech_pvt->call_id, dtmf);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout, switch_io_flag_t flags, int stream_id)
+{
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+	int samples = 0;
+	switch_status_t status = SWITCH_STATUS_FALSE;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	if (!globals.audio_stream_in) {
+		return SWITCH_STATUS_FALSE;
+	}
+
+	if (switch_test_flag(tech_pvt, TFLAG_HUP)) {
+		return SWITCH_STATUS_FALSE;
+	}
+
+	if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
+		goto cng;
+	}
+
+	if (!is_master(tech_pvt)) {
+		if (tech_pvt->hold_file) {
+			if (!tech_pvt->hfh) {
+				int codec_ms = tech_pvt->codec_ms ? tech_pvt->codec_ms : globals.codec_ms;
+				int sample_rate = tech_pvt->sample_rate ? tech_pvt->sample_rate : globals.sample_rate;
+
+				if (switch_core_codec_init(&tech_pvt->write_codec,
+										   "L16",
+										   NULL,
+										   sample_rate,
+										   codec_ms,
+										   1,
+										   SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
+										   NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
+					switch_core_codec_destroy(&globals.read_codec);
+					tech_pvt->hold_file = NULL;
+					goto cng;
+				}
+
+				if (switch_core_file_open(&tech_pvt->fh,
+										  tech_pvt->hold_file,
+										  globals.read_codec.implementation->number_of_channels,
+										  globals.read_codec.implementation->samples_per_second,
+										  SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT,
+										  switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
+					switch_core_codec_destroy(&tech_pvt->write_codec);
+					tech_pvt->hold_file = NULL;
+					goto cng;
+				}
+
+				tech_pvt->hfh = &tech_pvt->fh;
+				tech_pvt->hold_frame.data = tech_pvt->holdbuf;
+				tech_pvt->hold_frame.buflen = sizeof(tech_pvt->holdbuf);
+				tech_pvt->hold_frame.rate = sample_rate;
+				tech_pvt->hold_frame.codec = &tech_pvt->write_codec;
+			}
+
+			goto hold;
+		}
+	  cng:
+		switch_yield(globals.read_codec.implementation->microseconds_per_frame);
+		*frame = &globals.cng_frame;
+		return SWITCH_STATUS_SUCCESS;
+
+	  hold:
+
+		{
+			switch_size_t olen = globals.read_codec.implementation->samples_per_frame;
+			if (switch_core_timer_next(&tech_pvt->timer) != SWITCH_STATUS_SUCCESS) {
+				switch_core_file_close(&tech_pvt->fh);
+				switch_core_codec_destroy(&tech_pvt->write_codec);
+				goto cng;
+			}
+			switch_core_file_read(tech_pvt->hfh, tech_pvt->hold_frame.data, &olen);
+
+			if (olen == 0) {
+				unsigned int pos = 0;
+				switch_core_file_seek(tech_pvt->hfh, &pos, 0, SEEK_SET);
+				goto cng;
+			}
+
+
+			tech_pvt->hold_frame.datalen = (uint32_t) (olen * sizeof(int16_t));
+			tech_pvt->hold_frame.samples = (uint32_t) olen;
+			tech_pvt->hold_frame.timestamp = tech_pvt->timer.samplecount;
+			*frame = &tech_pvt->hold_frame;
+
+		}
+
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	switch_mutex_lock(globals.device_lock);
+
+
+	if ((samples = snd_pcm_readi (globals.audio_stream_in, globals.read_frame.data, globals.read_codec.implementation->samples_per_frame)) != 0) {
+		globals.read_frame.datalen = samples / 2;
+		globals.read_frame.samples = globals.read_frame.datalen / 2;
+
+		switch_core_timer_check(&globals.timer);
+		globals.read_frame.timestamp = globals.timer.samplecount;
+		*frame = &globals.read_frame;
+
+		if (!switch_test_flag((&globals), GFLAG_MOUTH)) {
+			memset(globals.read_frame.data, 255, globals.read_frame.datalen);
+		}
+
+		status = SWITCH_STATUS_SUCCESS;
+	}
+	switch_mutex_unlock(globals.device_lock);
+
+	return status;
+}
+
+static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout, switch_io_flag_t flags, int stream_id)
+{
+	switch_channel_t *channel = NULL;
+	private_t *tech_pvt = NULL;
+	switch_status_t status = SWITCH_STATUS_FALSE;
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	if (!globals.audio_stream_out) {
+		return SWITCH_STATUS_FALSE;
+	}
+
+	if (switch_test_flag(tech_pvt, TFLAG_HUP)) {
+		return SWITCH_STATUS_FALSE;
+	}
+
+	if (!is_master(tech_pvt) || !switch_test_flag(tech_pvt, TFLAG_IO)) {
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	if (globals.audio_stream_out) {
+		if (switch_test_flag((&globals), GFLAG_EAR)) {
+			snd_pcm_writei(globals.audio_stream_out, (short *) frame->data, (int) (frame->datalen / sizeof(SAMPLE)));
+		}
+		status = SWITCH_STATUS_SUCCESS;
+	}
+
+	return status;
+
+}
+
+static switch_status_t channel_answer_channel(switch_core_session_t *session)
+{
+	private_t *tech_pvt;
+	switch_channel_t *channel = NULL;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg)
+{
+	switch_channel_t *channel;
+	private_t *tech_pvt;
+
+	channel = switch_core_session_get_channel(session);
+	assert(channel != NULL);
+
+	tech_pvt = switch_core_session_get_private(session);
+	assert(tech_pvt != NULL);
+
+
+	switch (msg->message_id) {
+	case SWITCH_MESSAGE_INDICATE_ANSWER:
+		channel_answer_channel(session);
+		break;
+	case SWITCH_MESSAGE_INDICATE_PROGRESS:
+		{
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Engage Early Media\n");
+			switch_set_flag_locked(tech_pvt, TFLAG_IO);
+		}
+	default:
+		break;
+	}
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_api_interface_t send_dtmf_interface = {
+	/*.interface_name */ "padtmf",
+	/*.desc */ "DEPRICATED (see 'pa')",
+	/*.function */ padep,
+	/*.syntax */ "DEPRICATED (see 'pa')",
+	/*.next */ NULL
+};
+
+static switch_api_interface_t answer_call_interface = {
+	/*.interface_name */ "paoffhook",
+	/*.desc */ "DEPRICATED (see 'pa')",
+	/*.function */ padep,
+	/*.syntax */ "DEPRICATED (see 'pa')",
+	/*.next */ &send_dtmf_interface
+};
+
+static switch_api_interface_t channel_info_interface = {
+	/*.interface_name */ "painfo",
+	/*.desc */ "DEPRICATED (see 'pa')",
+	/*.function */ padep,
+	/*.syntax */ "DEPRICATED (see 'pa')",
+	/*.next */ &answer_call_interface
+};
+
+static switch_api_interface_t channel_hup_interface = {
+	/*.interface_name */ "pahup",
+	/*.desc */ "DEPRICATED (see 'pa')",
+	/*.function */ padep,
+	/*.syntax */ "DEPRICATED (see 'pa')",
+	/*.next */ &channel_info_interface
+};
+
+static switch_api_interface_t channel_call_interface = {
+	/*.interface_name */ "pacall",
+	/*.desc */ "DEPRICATED (see 'pa')",
+	/*.function */ padep,
+	/*.syntax */ "DEPRICATED (see 'pa')",
+	/*.next */ &channel_hup_interface
+};
+
+static switch_api_interface_t channel_api_interface = {
+	/*.interface_name */ "pa",
+	/*.desc */ "Alsa",
+	/*.function */ pa_cmd,
+	/*.syntax */ "<command> [<args>]",
+	/*.next */ &channel_call_interface
+};
+
+static const switch_state_handler_table_t channel_event_handlers = {
+	/*.on_init */ channel_on_init,
+	/*.on_ring */ channel_on_ring,
+	/*.on_execute */ channel_on_execute,
+	/*.on_hangup */ channel_on_hangup,
+	/*.on_loopback */ channel_on_loopback,
+	/*.on_transmit */ channel_on_transmit
+};
+
+static const switch_io_routines_t channel_io_routines = {
+	/*.outgoing_channel */ channel_outgoing_channel,
+	/*.read_frame */ channel_read_frame,
+	/*.write_frame */ channel_write_frame,
+	/*.kill_channel */ channel_kill_channel,
+	/*.waitfor_read */ channel_waitfor_read,
+	/*.waitfor_write */ channel_waitfor_write,
+	/*.send_dtmf */ channel_send_dtmf,
+	/*.receive_message */ channel_receive_message
+};
+
+static const switch_endpoint_interface_t channel_endpoint_interface = {
+	/*.interface_name */ "alsa",
+	/*.io_routines */ &channel_io_routines,
+	/*.event_handlers */ &channel_event_handlers,
+	/*.private */ NULL,
+	/*.next */ NULL
+};
+
+static const switch_loadable_module_interface_t channel_module_interface = {
+	/*.module_name */ modname,
+	/*.endpoint_interface */ &channel_endpoint_interface,
+	/*.timer_interface */ NULL,
+	/*.dialplan_interface */ NULL,
+	/*.codec_interface */ NULL,
+	/*.application_interface */ NULL,
+	/*.api_interface */ &channel_api_interface
+};
+
+/* Make sure when you have 2 sessions in the same scope that you pass the appropriate one to the routines
+   that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
+*/
+static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session,
+													switch_caller_profile_t *outbound_profile,
+													switch_core_session_t **new_session, switch_memory_pool_t **pool)
+{
+
+	if ((*new_session = switch_core_session_request(&channel_endpoint_interface, pool)) != 0) {
+		private_t *tech_pvt;
+		switch_channel_t *channel;
+		switch_caller_profile_t *caller_profile;
+
+		switch_core_session_add_stream(*new_session, NULL);
+		if ((tech_pvt = (private_t *) switch_core_session_alloc(*new_session, sizeof(private_t))) != 0) {
+			memset(tech_pvt, 0, sizeof(*tech_pvt));
+			switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(*new_session));
+			channel = switch_core_session_get_channel(*new_session);
+			switch_core_session_set_private(*new_session, tech_pvt);
+			tech_pvt->session = *new_session;
+			globals.flags = GFLAG_EAR | GFLAG_MOUTH;
+		} else {
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Hey where is my memory pool?\n");
+			switch_core_session_destroy(new_session);
+			return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
+		}
+
+		if (outbound_profile) {
+			char name[128];
+			char *id = !switch_strlen_zero(outbound_profile->caller_id_number) ? outbound_profile->caller_id_number : "na";
+			snprintf(name, sizeof(name), "Alsa/%s", id);
+
+			switch_channel_set_name(channel, name);
+
+			caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
+			switch_channel_set_caller_profile(channel, caller_profile);
+			tech_pvt->caller_profile = caller_profile;
+		} else {
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Doh! no caller profile\n");
+			switch_core_session_destroy(new_session);
+			return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
+		}
+
+		switch_channel_set_flag(channel, CF_OUTBOUND);
+		switch_set_flag_locked(tech_pvt, TFLAG_OUTBOUND);
+		switch_channel_set_state(channel, CS_INIT);
+		return SWITCH_CAUSE_SUCCESS;
+	}
+
+	return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
+
+}
+
+
+SWITCH_MOD_DECLARE(switch_status_t) switch_module_load(const switch_loadable_module_interface_t **module_interface, char *filename)
+{
+
+	switch_status_t status;
+
+	if (switch_core_new_memory_pool(&module_pool) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "OH OH no pool\n");
+		return SWITCH_STATUS_TERM;
+	}
+
+
+
+	if ((status = load_config()) != SWITCH_STATUS_SUCCESS) {
+		return status;
+	}
+
+
+
+	switch_core_hash_init(&globals.call_hash, module_pool);
+	switch_mutex_init(&globals.device_lock, SWITCH_MUTEX_NESTED, module_pool);
+	switch_mutex_init(&globals.pvt_lock, SWITCH_MUTEX_NESTED, module_pool);
+	switch_mutex_init(&globals.flag_mutex, SWITCH_MUTEX_NESTED, module_pool);
+
+
+
+	if (switch_event_reserve_subclass(MY_EVENT_RINGING) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't register subclass!");
+		return SWITCH_STATUS_GENERR;
+	}
+
+	globals.read_frame.data = globals.databuf;
+	globals.read_frame.buflen = sizeof(globals.databuf);
+	globals.cng_frame.data = globals.cngbuf;
+	globals.cng_frame.buflen = sizeof(globals.cngbuf);
+	globals.cng_frame.datalen = sizeof(globals.cngbuf);
+	switch_set_flag((&globals.cng_frame), SFF_CNG);
+
+	/* connect my internal structure to the blank pointer passed to me */
+	*module_interface = &channel_module_interface;
+
+	/* indicate that the module should continue to be loaded */
+	return SWITCH_STATUS_SUCCESS;
+}
+
+
+static switch_status_t load_config(void)
+{
+	char *cf = "alsa.conf";
+	switch_xml_t cfg, xml, settings, param;
+
+	if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "open of %s failed\n", cf);
+		return SWITCH_STATUS_TERM;
+	}
+
+	memset(&globals, 0, sizeof(globals));
+
+
+	if ((settings = switch_xml_child(cfg, "settings"))) {
+		for (param = switch_xml_child(settings, "param"); param; param = param->next) {
+			char *var = (char *) switch_xml_attr_soft(param, "name");
+			char *val = (char *) switch_xml_attr_soft(param, "value");
+
+			if (!strcmp(var, "debug")) {
+				globals.debug = atoi(val);
+			} else if (!strcmp(var, "ring-interval")) {
+				globals.ring_interval = atoi(val);
+			} else if (!strcmp(var, "ring-file")) {
+				set_global_ring_file(val);
+			} else if (!strcmp(var, "hold-file")) {
+				set_global_hold_file(val);
+			} else if (!strcmp(var, "timer-name")) {
+				set_global_timer_name(val);
+			} else if (!strcmp(var, "sample-rate")) {
+				globals.sample_rate = atoi(val);
+			} else if (!strcmp(var, "codec-ms")) {
+				globals.codec_ms = atoi(val);
+			} else if (!strcmp(var, "dialplan")) {
+				set_global_dialplan(val);
+			} else if (!strcmp(var, "cid-name")) {
+				set_global_cid_name(val);
+			} else if (!strcmp(var, "cid-num")) {
+				set_global_cid_num(val);
+			}
+		}
+	}
+
+	if (!globals.dialplan) {
+		set_global_dialplan("default");
+	}
+
+	if (!globals.sample_rate) {
+		globals.sample_rate = 8000;
+	}
+
+	if (!globals.codec_ms) {
+		globals.codec_ms = 20;
+	}
+
+	if (!globals.ring_interval) {
+		globals.ring_interval = 5;
+	}
+
+	if (!globals.timer_name) {
+		set_global_timer_name("soft");
+	}
+
+	switch_xml_free(xml);
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_MOD_DECLARE(switch_status_t) switch_module_shutdown(void)
+{
+	if (globals.read_codec.implementation) {
+		switch_core_codec_destroy(&globals.read_codec);
+	}
+
+	if (globals.write_codec.implementation) {
+		switch_core_codec_destroy(&globals.write_codec);
+	}
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+
+
+static switch_status_t engage_device(unsigned int sample_rate, int codec_ms)
+{
+	int err = 0;
+	snd_pcm_hw_params_t *hw_params = NULL;
+	char *device = "default";
+	
+	if (globals.audio_stream_in && globals.audio_stream_out) {
+		return SWITCH_STATUS_SUCCESS;
+	} 
+
+	if (globals.audio_stream_in) {
+		snd_pcm_close (globals.audio_stream_in);
+		globals.audio_stream_in = NULL;
+	}
+
+	if (globals.audio_stream_out) {
+		snd_pcm_close (globals.audio_stream_out);
+		globals.audio_stream_out = NULL;
+	}
+
+	if (!sample_rate) {
+		sample_rate = globals.sample_rate;
+	}
+
+	if (!codec_ms) {
+		codec_ms = globals.codec_ms;
+	}
+
+	if (switch_core_codec_init(&globals.read_codec,
+							   "L16",
+							   NULL, sample_rate, codec_ms, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
+							   NULL) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
+		return SWITCH_STATUS_FALSE;
+	} else {
+		if (switch_core_codec_init(&globals.write_codec,
+								   "L16",
+									   NULL,
+								   sample_rate, codec_ms, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
+								   NULL) != SWITCH_STATUS_SUCCESS) {
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
+			switch_core_codec_destroy(&globals.read_codec);
+			return SWITCH_STATUS_FALSE;
+			}
+	}
+	
+	if (switch_core_timer_init(&globals.timer,
+							   globals.timer_name, codec_ms, globals.read_codec.implementation->samples_per_frame,
+								   module_pool) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "setup timer failed!\n");
+		switch_core_codec_destroy(&globals.read_codec);
+		switch_core_codec_destroy(&globals.write_codec);
+		return SWITCH_STATUS_FALSE;
+	}
+
+	
+	
+	globals.read_frame.rate = sample_rate;
+	globals.read_frame.codec = &globals.read_codec;
+
+
+
+	switch_mutex_lock(globals.device_lock);
+	/* LOCKED ************************************************************************************************** */
+
+		
+	if ((err = snd_pcm_open (&globals.audio_stream_out, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot open audio device %s (%s)\n", 
+						  device,
+						  snd_strerror (err));
+		goto fail;
+	}
+
+	if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot allocate hardware parameter structure (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	 
+	if ((err = snd_pcm_hw_params_any (globals.audio_stream_out, hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot initialize hardware parameter structure (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_access (globals.audio_stream_out, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set access type (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_format (globals.audio_stream_out, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set sample format (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_rate_near (globals.audio_stream_out, hw_params, &sample_rate, 0)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set sample rate (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_channels (globals.audio_stream_out, hw_params, 1)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set channel count (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params (globals.audio_stream_out, hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set parameters (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	
+	snd_pcm_hw_params_free (hw_params);
+	hw_params = NULL;
+
+
+
+	if ((err = snd_pcm_open (&globals.audio_stream_in, device, SND_PCM_STREAM_CAPTURE, 0)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot open audio device %s (%s)\n", 
+						  device,
+						  snd_strerror (err));
+		goto fail;
+	} 
+	if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot allocate hardware parameter structure (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	 
+	if ((err = snd_pcm_hw_params_any (globals.audio_stream_in, hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot initialize hardware parameter structure (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_access (globals.audio_stream_in, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set access type (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_format (globals.audio_stream_in, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set sample format (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_rate_near (globals.audio_stream_in, hw_params, &sample_rate, 0)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set sample rate (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_channels (globals.audio_stream_in, hw_params, 1)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set channel count (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params (globals.audio_stream_in, hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set parameters (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if (hw_params) {
+		snd_pcm_hw_params_free (hw_params);
+		hw_params = NULL;
+	}
+
+	if ((err = snd_pcm_prepare (globals.audio_stream_out)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot prepare audio interface for use (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+
+	if ((err = snd_pcm_prepare (globals.audio_stream_in)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot prepare audio interface for use (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+		
+	switch_mutex_unlock(globals.device_lock);
+	return SWITCH_STATUS_SUCCESS;
+
+ fail:
+
+	if (hw_params) {
+		snd_pcm_hw_params_free (hw_params);
+		hw_params = NULL;
+	}
+
+	switch_mutex_unlock(globals.device_lock);
+
+	if (globals.audio_stream_in) {
+		snd_pcm_close (globals.audio_stream_in);
+	}
+
+	if (globals.audio_stream_out) {
+		snd_pcm_close (globals.audio_stream_out);
+	}
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't open audio device!\n");
+	switch_core_codec_destroy(&globals.read_codec);
+	switch_core_codec_destroy(&globals.write_codec);
+	
+	return SWITCH_STATUS_FALSE;	
+
+
+
+}
+
+
+static switch_status_t engage_ring_device(unsigned int sample_rate, int channels)
+{
+	int err = 0;
+	snd_pcm_hw_params_t *hw_params;
+	char *device = "default";
+
+	if (globals.ring_stream) {
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	if (!sample_rate) {
+		sample_rate = globals.sample_rate;
+	}
+
+	switch_mutex_lock(globals.device_lock);
+	/* LOCKED ************************************************************************************************** */
+
+		
+	if ((err = snd_pcm_open (&globals.ring_stream, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot open audio device %s (%s)\n", 
+						  device,
+						  snd_strerror (err));
+		goto fail;
+	}
+
+	if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot allocate hardware parameter structure (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	 
+	if ((err = snd_pcm_hw_params_any (globals.ring_stream, hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot initialize hardware parameter structure (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_access (globals.ring_stream, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set access type (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_format (globals.ring_stream, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set sample format (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_rate_near (globals.ring_stream, hw_params, &sample_rate, 0)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set sample rate (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params_set_channels (globals.ring_stream, hw_params, 1)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set channel count (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if ((err = snd_pcm_hw_params (globals.ring_stream, hw_params)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot set parameters (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+	
+	if (hw_params) {
+		snd_pcm_hw_params_free (hw_params);
+		hw_params = NULL;
+	}
+
+	if ((err = snd_pcm_prepare (globals.ring_stream)) < 0) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,  "cannot prepare audio interface for use (%s)\n",
+						  snd_strerror (err));
+		goto fail;
+	}
+
+	switch_mutex_unlock(globals.device_lock);
+	return SWITCH_STATUS_SUCCESS;
+		
+ fail:
+	switch_mutex_unlock(globals.device_lock);
+	
+
+	if (hw_params) {
+		snd_pcm_hw_params_free (hw_params);
+		hw_params = NULL;
+	}
+
+	if (globals.ring_stream) {
+		snd_pcm_close (globals.ring_stream);
+	}
+
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't open audio device!\n");
+	switch_core_codec_destroy(&globals.read_codec);
+	switch_core_codec_destroy(&globals.write_codec);
+	
+	return SWITCH_STATUS_FALSE;	
+}
+
+static switch_status_t dtmf_call(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	char *dtmf = argv[0];
+
+	if (switch_strlen_zero(dtmf)) {
+		stream->write_function(stream, "No DTMF Supplied!\n");
+	} else {
+		switch_mutex_lock(globals.pvt_lock);
+		if (globals.call_list) {
+			switch_channel_t *channel = switch_core_session_get_channel(globals.call_list->session);
+			switch_channel_queue_dtmf(channel, dtmf);
+		}
+		switch_mutex_unlock(globals.pvt_lock);
+	}
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t switch_call(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	private_t *tp, *tech_pvt = NULL;
+	char *callid = argv[0];
+	uint8_t one_call = 0;
+
+	switch_mutex_lock(globals.pvt_lock);
+	if (switch_strlen_zero(callid)) {
+		if (globals.call_list) {
+			if (globals.call_list->next) {
+				tech_pvt = globals.call_list->next;
+			} else {
+				tech_pvt = globals.call_list;
+				one_call = 1;
+			}
+		}
+	} else if (!strcasecmp(callid, "none")) {
+		for (tp = globals.call_list; tp; tp = tp->next) {
+			switch_clear_flag_locked(tp, TFLAG_MASTER);
+		}
+		stream->write_function(stream, "OK\n");
+		goto done;
+	} else {
+		tech_pvt = switch_core_hash_find(globals.call_hash, callid);
+	}
+
+	if (tech_pvt) {
+		if (tech_pvt == globals.call_list && !tech_pvt->next) {
+			one_call = 1;
+		}
+
+		if (!one_call) {
+			remove_pvt(tech_pvt);
+		}
+		add_pvt(tech_pvt, PA_MASTER);
+		stream->write_function(stream, "OK\n");
+	} else {
+		stream->write_function(stream, "NO SUCH CALL\n");
+	}
+
+  done:
+	switch_mutex_unlock(globals.pvt_lock);
+
+	return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t hangup_call(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	private_t *tech_pvt;
+	char *callid = argv[0];
+
+	switch_mutex_lock(globals.pvt_lock);
+	if (switch_strlen_zero(callid)) {
+		tech_pvt = globals.call_list;
+	} else {
+		tech_pvt = switch_core_hash_find(globals.call_hash, callid);
+	}
+
+	if (tech_pvt) {
+		switch_channel_hangup(switch_core_session_get_channel(tech_pvt->session), SWITCH_CAUSE_NORMAL_CLEARING);
+		//switch_set_flag_locked(tech_pvt, TFLAG_HUP);
+		stream->write_function(stream, "OK\n");
+	} else {
+		stream->write_function(stream, "NO SUCH CALL\n");
+	}
+	switch_mutex_unlock(globals.pvt_lock);
+
+	return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t answer_call(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	private_t *tp;
+	int x = 0;
+	char *callid = argv[0];
+
+	switch_mutex_lock(globals.pvt_lock);
+
+	if (!switch_strlen_zero(callid)) {
+		if ((tp = switch_core_hash_find(globals.call_hash, callid))) {
+			if (switch_test_flag(tp, TFLAG_ANSWER)) {
+				stream->write_function(stream, "CALL ALREADY ANSWERED\n");
+			} else {
+				switch_channel_t *channel = switch_core_session_get_channel(tp->session);
+				switch_set_flag_locked(tp, TFLAG_ANSWER);
+				switch_channel_answer(channel);
+				add_pvt(tp, PA_MASTER);
+			}
+		} else {
+			stream->write_function(stream, "NO SUCH CALL\n");
+		}
+
+		goto done;
+	}
+
+	for (tp = globals.call_list; tp; tp = tp->next) {
+		if (!switch_test_flag(tp, TFLAG_ANSWER)) {
+			switch_channel_t *channel = switch_core_session_get_channel(tp->session);
+			switch_set_flag_locked(tp, TFLAG_ANSWER);
+			switch_channel_answer(channel);
+			add_pvt(tp, PA_MASTER);
+			x++;
+			break;
+		}
+	}
+  done:
+	switch_mutex_unlock(globals.pvt_lock);
+
+	stream->write_function(stream, "Answered %d channels.\n", x);
+
+
+	return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t do_flags(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	char *action = argv[0];
+	char *flag_str = argv[1];
+	GFLAGS flags = GFLAG_NONE;
+	char *p;
+	int x = 0;
+
+	if (argc < 2) {
+		goto desc;
+	}
+
+	for (x = 1; x < argc; x++) {
+		flag_str = argv[x];
+		for (p = flag_str; *p; p++) {
+			*p = (char) tolower(*p);
+		}
+
+		if (strstr(flag_str, "ear")) {
+			flags |= GFLAG_EAR;
+		}
+		if (strstr(flag_str, "mouth")) {
+			flags |= GFLAG_MOUTH;
+		}
+	}
+
+	if (!strcasecmp(action, "on")) {
+		if (flags & GFLAG_EAR) {
+			switch_set_flag((&globals), GFLAG_EAR);
+		}
+		if (flags & GFLAG_MOUTH) {
+			switch_set_flag((&globals), GFLAG_MOUTH);
+		}
+	} else if (!strcasecmp(action, "off")) {
+		if (flags & GFLAG_EAR) {
+			switch_clear_flag((&globals), GFLAG_EAR);
+		}
+		if (flags & GFLAG_MOUTH) {
+			switch_clear_flag((&globals), GFLAG_MOUTH);
+		}
+	} else {
+		goto bad;
+	}
+
+  desc:
+	x = 0;
+	stream->write_function(stream, "FLAGS: ");
+	if (switch_test_flag((&globals), GFLAG_EAR)) {
+		stream->write_function(stream, "ear");
+		x++;
+	}
+	if (switch_test_flag((&globals), GFLAG_MOUTH)) {
+		stream->write_function(stream, "%smouth", x ? "|" : "");
+		x++;
+	}
+	if (!x) {
+		stream->write_function(stream, "none");
+	}
+
+	goto done;
+
+  bad:
+	stream->write_function(stream, "Usage: flags [on|off] <flags>\n");
+  done:
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t list_calls(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	private_t *tp;
+	int x = 0;
+	char *cid_name = "n/a";
+	char *cid_num = "n/a";
+
+	switch_mutex_lock(globals.pvt_lock);
+	for (tp = globals.call_list; tp; tp = tp->next) {
+		switch_channel_t *channel;
+		switch_caller_profile_t *profile;
+		x++;
+		channel = switch_core_session_get_channel(tp->session);
+
+		if ((profile = switch_channel_get_caller_profile(channel))) {
+			if (profile->originatee_caller_profile) {
+				cid_name = "Outbound Call";
+				cid_num = profile->originatee_caller_profile->destination_number;
+			} else {
+				cid_name = profile->caller_id_name;
+				cid_num = profile->caller_id_number;
+			}
+		}
+
+		stream->write_function(stream, "%s %s [%s (%s)] %s\n", tp->call_id, switch_channel_get_name(channel),
+							   cid_name, cid_num, switch_test_flag(tp, TFLAG_MASTER) ? "active" : "hold");
+	}
+	switch_mutex_unlock(globals.pvt_lock);
+
+	stream->write_function(stream, "\n%d call%s\n", x, x == 1 ? "" : "s");
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t place_call(char **argv, int argc, switch_stream_handle_t *stream)
+{
+	switch_core_session_t *session;
+	switch_status_t status = SWITCH_STATUS_SUCCESS;
+	char *dest = NULL;
+
+	if (!argv[0]) {
+		stream->write_function(stream, "FAIL:Usage: call <dest>\n");
+		return SWITCH_STATUS_SUCCESS;
+	}
+	dest = argv[0];
+
+	if ((session = switch_core_session_request(&channel_endpoint_interface, NULL)) != 0) {
+		private_t *tech_pvt;
+		switch_channel_t *channel;
+		char *dialplan = globals.dialplan;
+		char *cid_name = globals.cid_name;
+		char *cid_num = globals.cid_num;
+
+		switch_core_session_add_stream(session, NULL);
+		if ((tech_pvt = (private_t *) switch_core_session_alloc(session, sizeof(private_t))) != 0) {
+			memset(tech_pvt, 0, sizeof(*tech_pvt));
+			switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
+			channel = switch_core_session_get_channel(session);
+			switch_core_session_set_private(session, tech_pvt);
+			tech_pvt->session = session;
+			globals.flags = GFLAG_EAR | GFLAG_MOUTH;
+		} else {
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Hey where is my memory pool?\n");
+			switch_core_session_destroy(&session);
+			return SWITCH_STATUS_MEMERR;
+		}
+
+		if (!switch_strlen_zero(argv[1])) {
+			dialplan = argv[1];
+		}
+
+		if (!switch_strlen_zero(argv[2])) {
+			cid_num = argv[2];
+		}
+
+		if (!switch_strlen_zero(argv[3])) {
+			cid_name = argv[3];
+		}
+
+		if (!switch_strlen_zero(argv[4])) {
+			tech_pvt->sample_rate = atoi(argv[4]);
+		}
+
+		if (!switch_strlen_zero(argv[4])) {
+			tech_pvt->codec_ms = atoi(argv[5]);
+		}
+
+		if ((tech_pvt->caller_profile = switch_caller_profile_new(switch_core_session_get_pool(session),
+																  NULL,
+																  dialplan, cid_name, cid_num, NULL, NULL, NULL, NULL, (char *) modname, NULL,
+																  dest)) != 0) {
+			char name[128];
+			snprintf(name, sizeof(name), "Alsa/%s",
+					 tech_pvt->caller_profile->destination_number ? tech_pvt->caller_profile->destination_number : modname);
+			switch_channel_set_name(channel, name);
+
+			switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
+		}
+		tech_pvt->session = session;
+		if ((status = engage_device(tech_pvt->sample_rate, tech_pvt->codec_ms)) == SWITCH_STATUS_SUCCESS) {
+			switch_set_flag_locked(tech_pvt, TFLAG_ANSWER);
+			switch_channel_mark_answered(channel);
+			switch_channel_set_state(channel, CS_INIT);
+			switch_core_session_thread_launch(tech_pvt->session);
+			add_pvt(tech_pvt, PA_MASTER);
+			stream->write_function(stream, "SUCCESS:%s:%s\n", tech_pvt->call_id, switch_core_session_get_uuid(tech_pvt->session));
+		} else {
+			switch_core_session_destroy(&session);
+			stream->write_function(stream, "FAIL:Device Error!\n");
+		}
+	}
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t padep(char *cmd, switch_core_session_t *isession, switch_stream_handle_t *stream)
+{
+	stream->write_function(stream, "This command no longer exists (try 'pa help')\n");
+	return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t pa_cmd(char *cmd, switch_core_session_t *isession, switch_stream_handle_t *stream)
+{
+	char *argv[1024] = { 0 };
+	int argc = 0;
+	char *mycmd = NULL, *devname = NULL;
+	switch_status_t status = SWITCH_STATUS_SUCCESS;
+	pa_command_t func = NULL;
+	int lead = 1, devval = 0;
+	const char *usage_string = "USAGE:\n"
+		"--------------------------------------------------------------------------------\n"
+		"pa help\n"
+		"pa dump\n"
+		"pa call <dest> [<dialplan> <cid_name> <cid_num> <rate>]\n"
+		"pa answer [<call_id>]\n"
+		"pa hangup [<call_id>]\n"
+		"pa list\n"
+		"pa switch [<call_id>|none]\n"
+		"pa dtmf <digit string>\n"
+		"pa flags [on|off] [ear] [mouth]\n"
+		"--------------------------------------------------------------------------------\n";
+
+	if (switch_strlen_zero(cmd)) {
+		stream->write_function(stream, "%s", usage_string);
+		goto done;
+	}
+
+	if (!(mycmd = strdup(cmd))) {
+		status = SWITCH_STATUS_MEMERR;
+		goto done;
+	}
+
+	if (!(argc = switch_separate_string(mycmd, ' ', argv, (sizeof(argv) / sizeof(argv[0]))))) {
+		stream->write_function(stream, "%s", usage_string);
+		goto done;
+	}
+
+	if (!strcasecmp(argv[0], "call")) {
+		func = place_call;
+	} else if (!strcasecmp(argv[0], "help")) {
+		stream->write_function(stream, "%s", usage_string);
+		goto done;
+	} else if (!strcasecmp(argv[0], "list")) {
+		func = list_calls;
+	} else if (!strcasecmp(argv[0], "flags")) {
+		func = do_flags;
+	} else if (!strcasecmp(argv[0], "hangup")) {
+		func = hangup_call;
+	} else if (!strcasecmp(argv[0], "answer")) {
+		func = answer_call;
+	} else if (!strcasecmp(argv[0], "switch")) {
+		func = switch_call;
+	} else if (!strcasecmp(argv[0], "dtmf")) {
+		func = dtmf_call;
+	}
+
+	if (func) {
+		status = func(&argv[lead], argc - lead, stream);
+	} else {
+		if (devname) {
+			if (devval > 0) {
+				stream->write_function(stream, "%s set to %d\n", devname, devval);
+			} else {
+				stream->write_function(stream, "%s not set (invalid value)\n", devname);
+			}
+		} else {
+			stream->write_function(stream, "Unknown Command [%s]\n", argv[0]);
+		}
+	}
+
+  done:
+
+	switch_safe_free(mycmd);
+
+	return status;
+}
+
+
+/* For Emacs:
+ * Local Variables:
+ * mode:c
+ * indent-tabs-mode:t
+ * tab-width:4
+ * c-basic-offset:4
+ * End:
+ * For VIM:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
+ */