restore default config valus for portaudio.conf.xml

conf/autoload_configs/portaudio.conf.xml

@@ -5,14 +5,12 @@
 	 or the device number prefixed with # eg "#1" (or blank for default) -->
 
     <!-- device to use for input -->
-    <param name="indev" value="Built-in Input"/>
+    <param name="indev" value=""/>
     <!-- device to use for output -->
-    <!--<param name="outdev" value="Built-in Output"/>-->
-    <param name="outdev" value="#2"/>
+    <param name="outdev" value=""/>
 
     <!--device to use for inbound ring -->
-    <param name="ringdev" value="Built-in Output"/>
-
+    <!--<param name="ringdev" value=""/>-->
     <!--File to play as the ring sound -->
     <!--<param name="ring-file" value="/sounds/ring.wav"/>-->
     <!--Number of seconds to pause between rings -->
@@ -31,8 +29,7 @@
     <param name="cid-num" value="$${outbound_caller_id}"/>
 
     <!--audio sample rate and interval -->
-    <!--<param name="sample-rate" value="48000"/>-->
-    <param name="sample-rate" value="8000"/>
+    <param name="sample-rate" value="48000"/>
     <param name="codec-ms" value="20"/>
   </settings>