Lifesize Cloud: Port Requirements

For H.323 Systems

Confirm your firewall allows outbound access from your network to the following destination ports. Static NAT and inbound ports may also be required. Check the manufacturers specifications.


Protocol Source IP Source Port Destination IP Destination Port Description
TCP Any Any

Public IP addresses listed in

web console > Advanced Settings > Network

1720 H.225 : call signaling
TCP Any Any Public IP addresses listed in
web console > Advanced Settings > Network
10000/16000 H.225 call signalling
TCP Any Any Public IP addresses listed in 
web console > Advanced Settings > Network
10000/28000 H.225 call signalling