title: Pjsip - mini conference call (audio)
body: <p>May i create mini conference audio calls like:
  A call B, A call C. then
  1. A can receive sounds from B and C
  2. B talks, then A and C will receive the sound also.
  I think the ways to implement to redirect the sound or merge source.</p>
  
  <p>Are there any ways to implement from react-native-pjsip ? Thanks</p>