title: kamailio imsdroid one way audio is clear the other way just wind and jitter sound
body: <p>I have installed Kamailio as sip server/registrar and using default config.
  I have this situation:
  mobile cleint using IMSdroid (extension 100)
  windows client using Linphone (extension 300)</p>
  
  <p>Register satus: both clients register successfuly</p>
  
  <p>Both clients get connected to kamailio using my Wireless WIFI modem.</p>
  
  <p>I dial (from IMSdroid) to linphone:
  Both ring OK.</p>
  
  <p>Audio heard in IMSdroid is OK. 
  Audio heard in windows linphone is just wind sound and jitter (or train sound, when I speak louder it gets louder)</p>
  
  <p>Video is ok in both sides (both clients show video clearly)</p>
  
  <p>Both clients get connected to kamailio (public internet IP)</p>
  
  <p>What the problem is from?</p>