In a scenario of  a call controller controlling the session between endpoints 
but still media is flowing between endpoints directly . 
              If  call controller decides to remove the media stream for an 
endpoint  but still retain the call control session (may be in future again 
media stream can be added )      
              
   
 
  A                   callcontroller                        B                   
                  C 
 
                        media  
  |<------------------------------------------------------------>|  
                            | ------INVITE------------------->|
                            |                                      |
                            |  <------- 200 (SDP1 ) ---------|                  
                   |     
                            |--------- ACK ( SDP1 with port =0 in m=|     
                            |   
can we do as  in figure  said above , so that i can connect A & C  later 
remove media stream with C and have media stream between A & B .
 
  I don't want callhold with B because if i connect A & C still RTCP packets 
will go from B to A . 
 
 
 
 Also will B send BYE immedately if  i remove the media stream
 
anyone pls clarify me soon 
 
Thanks
Bala 
 

                
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