Cisco Cisco Unified MeetingPlace Web Conferencing Manuale Di Manutenzione

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Chapter 8  Providing Web Conferences for Those Outside Your Company 
Figure 8-5  MeetingPlace DMZ Configuration
For external users to participate in web conferences using 
WebShare, TCP port 80 must be open. However, if port 1627 is 
not open, it will “tunnel” through port 80. Tunnel connections are 
much slower than using a port 1627 connection. Therefore, it is 
highly recommended that you open port 1627 in addition to port 
80.
For external users to participate in web conferences using a T.120 
application, such as Microsoft NetMeeting, port 80 and 1503 
must be open. 
Note: If you choose to close TCP port 1627, you must test web 
conference performance through a tunnel connection to 
determine if the tunnel connection meets your performance 
requirements or needs.
Cisco MeetingPlace Web 3.0 System Manager's Guide                            OL-6033-01