title: Speech to text with IBM watson for live RTP/VOIP/Audio call is not converting to text
body: <p>i am trying to make use of speech to text service by IBM watson serivce but i am facing some issues in converting speech to text.</p>
  
  <p>Could you please help me out with the following scenario?.</p>
  
  <p>I have setup VOIP(Asterisk/freeswitch) server with A SIP client and B SIP client registered, and A called B, call is established they are taking over phones using G711 ULAW codec .</p>
  
  <p>I have websocket application that connects to IBM watson speech to text and session is established. I got the reply from watson server as "State listening".</p>
  
  <p>Now i am trying to send raw rtp packet data from VOIP server to watson server but i am getting "session timeout" error from watson.</p>
  
  <p>Following configuration parameters i am using.</p>
  
  <p>Since this is live RTP audio call i am using 
  en-US_NarrowbandModel
  'Content-type':audio/l16;rate=16000</p>
  
  <p>I am continuously sending raw data of RTP packets over websocket connection of watson server.</p>
  
  <p>Please help me with what i am doing wrong with this setup.</p>