diff --git a/freeswitch.xml b/freeswitch.xml
index e7dad00..44d009f 100644
--- a/freeswitch.xml
+++ b/freeswitch.xml
@@ -34,6 +34,8 @@
     <X-PRE-PROCESS cmd="set" data="ignore_display_updates=true"/>
     <X-PRE-PROCESS cmd="set" data="recordings_dir=/tmp/"/>
 
+    <X-PRE-PROCESS cmd="set" data="send_silence_when_idle=400"/>
+
     <X-PRE-PROCESS cmd="set" data="codecs=H261,H263,H264,G7221@32000h,G7221@16000h,G722,PCMU,PCMA,G729,GSM"/>
 
     <section name="configuration" description="Various Configuration">
diff --git a/sip_profiles/internal.xml b/sip_profiles/internal.xml
index 92117f5..586fdc2 100644
--- a/sip_profiles/internal.xml
+++ b/sip_profiles/internal.xml
@@ -67,11 +67,12 @@
             <param name="rtp-ip" value="$${local_ip_v4}"/>
             <param name="ext-rtp-ip" value="auto"/>
             <param name="rtp-timer-name" value="soft"/>
-            <param name="rtp-autoflush-during-bridge" value="true"/>
-            <param name="rtp-rewrite-timestamps" value="true"/>
+            <param name="rtp-autoflush-during-bridge" value="false"/>
+            <param name="rtp-rewrite-timestamps" value="false"/>
             <!--<param name="disable-rtp-auto-adjust" value="true"/>-->
             <!--<param name="rtp-autofix-timing" value="false"/>-->
             <!--<param name="auto-rtp-bugs" data="clear"/>-->
+            <param name="auto-rtp-bugs" value="CISCO_SKIP_MARK_BIT_2833,SONUS_SEND_INVALID_TIMESTAMP_2833"/>
             <!--<param name="inbound-bypass-media" value="true"/>-->
             <!--<param name="media-option" value="resume-media-on-hold"/>-->
             <!--<param name="media-option" value="bypass-media-after-att-xfer"/>-->
@@ -105,10 +106,10 @@
 
 
             <!-- DTMF -->
-            <param name="dtmf-duration" value="2000"/>
+            <param name="dtmf-duration" value="350"/>
             <param name="rfc2833-pt" value="101"/>
             <param name="dtmf-type" value="rfc2833"/>
-            <param name="pass-rfc2833" value="false"/>
+            <param name="pass-rfc2833" value="true"/>
 
 
             <!-- Codecs -->