Assertion: port | /r/HasProperty | opened in the firewall
Facets:
value: for services
type: PURPOSE
Source sentences:
text: The ports for voice over IP (VoIP) traffic must be opened in the firewall and forwarded by the router to the telephone PBX (see port forwarding).
text: For services offered to users on the public Internet, ports are opened in the firewall, and packets are forwarded to the appropriate server (see port forwarding).
text: The ports for voice over IP (VoIP) traffic must be opened in the firewall and forwarded by the router to the telephone PBX (see port forwarding ).