Cisco Cisco Unified MeetingPlace Audio Server Installation Guide

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Telephony and LAN planning  3-49
February 27, 2004
Cisco MeetingPlace Audio Server Installation Planning Guide
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The MeetingPlace IP Gateway can be configured to use a “reverse 
connection” initiated by the Audio Server, which eliminates the need for 
incoming port 5003 to be open (would need to be open outgoing instead, 
which is typically not an issue). The “reverse connection” feature requires 
installation of GWSIM 5.0 or higher on each affected gateway.
Network 
Requirements
For the Windows server to communicate with the MeetingPlace 
server, the following requirements need to be met:
• The MeetingPlace system and MeetingPlace IP Gateway must 
be located on the same subnet.
• The Windows server must be inside the corporate firewall and 
able to access the software switcher server using multiple TCP 
ports.
• The Windows server must be able to open a TCP connection on 
port 5003 when connecting to a MeetingPlace conference server.
• The secondary Ethernet connections (those connected to the IP 
blades, and not the second Ethernet port on the CPU card) on 
MeetingPlace must be connected to the same subnet as your 
corporate network where your IP phone is connected.
For optimal voice quality, all Multi Access Blade connections 
must be 100Base-TX Ethernet.
• If G.711codec is configured, a dedicated 100Mbps subnet is 
required for each MA-16 connection. Otherwise, the voice/audio 
quality can be diminished.
• From the MeetingPlace IP Gateway standpoint, the IP 
address(es) of the MeetingPlace conference server must not be 
translated using a Network Address Translation routing scheme.
• Connectivity between the MeetingPlace IP Gateway Windows 
server and the MeetingPlace conference server must be high 
quality and not subject to interruptions due to traffic congestion. 
Whenever the round trip latency exceeds 100ms or if there is 
more than 1% packet loss, a noticeable reduction in service 
quality should be expected.
End User System 
IP phone that supports G.711 or G.729a and is configured to work 
with one of the following:
• Cisco CallManager
• Avaya IP Communication Manager
• a PSTN phone through a voice enabled router (for example, a 
Cisco 3600 series router)
• SIP phones
• Cisco Proxy Server version 1.0 and later
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If you use Microsoft NetMeeting, version 3.0 or later is 
required and it must support G.711 or G.729a.
Component
System requirements