diff --git a/conf/default_context.xml b/conf/default_context.xml
index 7b8b2688a5..de88059a47 100644
--- a/conf/default_context.xml
+++ b/conf/default_context.xml
@@ -53,7 +53,7 @@
       <!-- Request a certain tone/file to be played while you wait for the call to be answered-->
       <action application="set" data="ringback=${us-ring}"/>
       <!--<action application="set" data="ringback=/home/ring.wav"/>-->
-      <!--<action application="set" data="jitterbuffer_msec=400"/>-->
+      <!--<action application="set" data="jitterbuffer_msec=180"/>-->
       <action application="bridge" data="sofia/$${sip_profile}/1234@conference.freeswitch.org"/>
     </condition>
   </extension>
diff --git a/libs/stfu/stfu.c b/libs/stfu/stfu.c
index 371b47b9ca..64bf9c0608 100644
--- a/libs/stfu/stfu.c
+++ b/libs/stfu/stfu.c
@@ -90,6 +90,21 @@ stfu_instance_t *stfu_n_init(uint32_t qlen)
 	return i;
 }
 
+void stfu_n_reset(stfu_instance_t *i)
+{
+	i->in_queue = &i->a_queue;
+	i->out_queue = &i->b_queue;
+	i->in_queue->array_len = 0;
+	i->out_queue->array_len = 0;
+	i->out_queue->wr_len = 0;
+	i->out_queue->last_index = 0;
+	i->miss_count = 0;	
+	i->last_ts = 0;
+	i->running = 0;
+	i->miss_count = 0;
+	i->interval = 0;
+}
+
 static int32_t stfu_n_measure_interval(stfu_queue_t *queue)
 {
 	uint32_t index;
@@ -148,7 +163,7 @@ stfu_status_t stfu_n_add_data(stfu_instance_t *i, uint32_t ts, void *data, size_
 		i->out_queue->wr_len = 0;
 		i->out_queue->last_index = 0;
 		i->miss_count = 0;
-
+	
 		if (stfu_n_process(i, i->out_queue) < 0) {
 			return STFU_IT_FAILED;
 		}
@@ -183,7 +198,7 @@ stfu_frame_t *stfu_n_read_a_frame(stfu_instance_t *i)
 	stfu_frame_t *frame = NULL, *rframe = NULL;
 	
 
-	if ((i->out_queue->wr_len == i->out_queue->array_len) || !i->out_queue->array_len) {
+	if (((i->out_queue->wr_len == i->out_queue->array_len) || !i->out_queue->array_len)) {
 		return NULL;
 	}
 
@@ -199,7 +214,7 @@ stfu_frame_t *stfu_n_read_a_frame(stfu_instance_t *i)
 		}
 
 		frame = &i->out_queue->array[index];
-				
+		
 		if (frame->ts != should_have) {
 			int tried = 0;
 			for (index2 = 0; index2 < i->out_queue->array_len; index2++) {
@@ -226,12 +241,13 @@ stfu_frame_t *stfu_n_read_a_frame(stfu_instance_t *i)
 
 			i->miss_count++;
 
-			if (i->miss_count > 10 || i->in_queue->array_len == i->in_queue->array_size ) {
-				i->out_queue->wr_len = i->out_queue->array_len;
-				i->last_ts = should_have = frame->ts;
+			if (i->miss_count > 10 || (i->in_queue->array_len == i->in_queue->array_size) || tried >= i->in_queue->array_size) {
+				i->running = 0;
+				i->interval = 0;
+				i->out_queue->wr_len = i->out_queue->array_size;
 				return NULL;
 			}
-
+			
 			i->last_ts = should_have;
 			rframe = &i->out_queue->int_frame;
 			rframe->dlen = i->out_queue->array[i->out_queue->last_index].dlen;
diff --git a/libs/stfu/stfu.h b/libs/stfu/stfu.h
index 792a4959c7..18c74dbd14 100644
--- a/libs/stfu/stfu.h
+++ b/libs/stfu/stfu.h
@@ -88,7 +88,9 @@ void stfu_n_destroy(stfu_instance_t **i);
 stfu_instance_t *stfu_n_init(uint32_t qlen);
 stfu_status_t stfu_n_add_data(stfu_instance_t *i, uint32_t ts, void *data, size_t datalen, int last);
 stfu_frame_t *stfu_n_read_a_frame(stfu_instance_t *i);
-#define stfu_im_done() stfu_n_add_data(i, 0, NULL, 0, 1)
+void stfu_n_reset(stfu_instance_t *i);
+
+#define stfu_im_done(i) stfu_n_add_data(i, 0, NULL, 0, 1)
 #define stfu_n_eat(i,t,d,l) stfu_n_add_data(i, t, d, l, 0)
 
 #ifdef __cplusplus
diff --git a/src/mod/timers/mod_softtimer/mod_softtimer.c b/src/mod/timers/mod_softtimer/mod_softtimer.c
index b3a3f64261..cc305d8c98 100644
--- a/src/mod/timers/mod_softtimer/mod_softtimer.c
+++ b/src/mod/timers/mod_softtimer/mod_softtimer.c
@@ -73,7 +73,7 @@ static inline switch_status_t timer_init(switch_timer_t *timer)
 {
 	timer_private_t *private_info;
 
-	if (globals.RUNNING != 1) {
+	if (globals.RUNNING != 1 || !globals.mutex) {
 		return SWITCH_STATUS_FALSE;
 	}
 
diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 12ac302411..ecfa437c0e 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -816,6 +816,7 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
 	switch_size_t bytes = 0;
 	switch_status_t status;
 	uint8_t check = 1;
+	stfu_frame_t *jb_frame;
 
 	if (!rtp_session->timer.interval) {
 		rtp_session->last_time = switch_time_now();
@@ -833,22 +834,23 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
 			return -1;
 		}
 
-		if (rtp_session->jb && bytes) {
-			stfu_frame_t *frame;
+		if (rtp_session->jb && bytes && rtp_session->recv_msg.header.pt == rtp_session->payload) {
+			if (rtp_session->recv_msg.header.m) {
+				stfu_n_reset(rtp_session->jb);
+			} 
 			
 			stfu_n_eat(rtp_session->jb, ntohl(rtp_session->recv_msg.header.ts), rtp_session->recv_msg.body, bytes - rtp_header_len);
-			if ((frame = stfu_n_read_a_frame(rtp_session->jb))) {
-				memcpy(rtp_session->recv_msg.body, frame->data, frame->dlen);
-				if (frame->plc) {
+			if ((jb_frame = stfu_n_read_a_frame(rtp_session->jb))) {
+				memcpy(rtp_session->recv_msg.body, jb_frame->data, jb_frame->dlen);
+				if (jb_frame->plc) {
 					*flags |= SFF_PLC;
-				}
-				bytes = frame->dlen + rtp_header_len;
-				rtp_session->recv_msg.header.ts = htonl(frame->ts);
+					}
+				bytes = jb_frame->dlen + rtp_header_len;
+				rtp_session->recv_msg.header.ts = htonl(jb_frame->ts);
 			} else {
 				bytes = 0;
 				continue;
-			}
-			
+			}			
 		}
 
 		if (!bytes && switch_test_flag(rtp_session, SWITCH_RTP_FLAG_BREAK)) {
@@ -882,15 +884,22 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
 
 		if (check) {
 			do_2833(rtp_session);
-
-			if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER)) {
+			
+			if (rtp_session->jb && (jb_frame = stfu_n_read_a_frame(rtp_session->jb))) {
+				memcpy(rtp_session->recv_msg.body, jb_frame->data, jb_frame->dlen);
+				if (jb_frame->plc) {
+					*flags |= SFF_PLC;
+				}
+				bytes = jb_frame->dlen + rtp_header_len;
+				rtp_session->recv_msg.header.ts = htonl(jb_frame->ts);
+			} else if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER)) {
 				uint8_t *data = (uint8_t *) rtp_session->recv_msg.body;
 				/* We're late! We're Late! */
 				if (!switch_test_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK) && status == SWITCH_STATUS_BREAK) {
 					switch_yield(1000);
 					continue;
 				}
-					
+				
 				memset(data, 0, 2);
 				data[0] = 65;