add answer/sleep to talking clock example so media flows before we start takling

conf/dialplan/default/01_Talking_Clock.xml

 <include>
   <extension name="Talking Clock Time" ><!--e.g. 10:56pm-->
     <condition field="destination_number" expression="^9170$">
+      <action application="answer"/>
+      <action application="sleep" data="1000"/>
       <action application="say" data="en CURRENT_TIME pronounced
 				      ${strepoch()}"/>
       <action application="hangup"/>
@@ -9,6 +11,8 @@
   
   <extension name="Talking Clock Date" ><!--e.g. March 8, 2011-->
     <condition field="destination_number" expression="^9171$">
+      <action application="answer"/>
+      <action application="sleep" data="1000"/>
       <action application="say" data="en CURRENT_DATE pronounced
 				      ${strepoch()}"/>
       <action application="hangup"/>
@@ -18,6 +22,8 @@
   <extension name="Talking Clock Date and Time" ><!--e.g. March 8, 2011
 						     10:56pm-->
     <condition field="destination_number" expression="^9172$">
+      <action application="answer"/>
+      <action application="sleep" data="1000"/>
       <action application="say" data="en CURRENT_DATE_TIME pronounced
 				      ${strepoch()}"/>
       <action application="hangup"/>