Function Port range Type Ingoing Outgoing Remarks
     
VCS Controller to Expressway          
H.323 RAS signaling 60xx UDP   x This port is set on the VCS Expressway and VCS Controller. 
SIP and H.323: H.225 and H.245 2776 TCP   x  
SIP and H.323: RTP/RTCP Media 2776 - 2777 UDP   x  
NEW: MUX 50000 - 50011 UDP   x  
NEW: MUX 36000 - 36011 UDP   x  
SIP Signaling 70xx TCP + TLS   x This port is set on the VCS Expressway and VCS Controller. 
NTP 123 UDP   x The VCS Controller need date and time. It could be a local NTP server.
TURN relays port range 24000 - 29999 UDP + TCP   x Should be used if STUN is used
TURN server port 3478 - 3483 UDP + TCP   x Should be used if STUN is used
           
           
Remember H.323 ALG/Application support should be off on the firewall !!