NEC UNIVERGE SV9100 Manual page 40

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Now connect the UNIVERGE SV9100 GPZ-IPLE Ethernet Port to the switch/hub port, using a standard CAT-
5 patch cable. The UNIVERGE SV9100 is now configured on the network and its DHCP server is ready to
allocate IP addresses. The client PCs should be set to Ob ta in IP Ad d re ss Au to m a tica lly .
General IP Configuration
The voice quality of VoIP depends on variables such as available bandwidth, network latency, and quality of
service initiatives (QOS), all of which are controlled by the network and internet service providers. Because
these variables are not in NEC control, it cannot guarantee the performance of the users IP based voice
solution.
Therefore, NEC recommends connecting the VoIP equipment through a local area network using private IP
addresses. For a network to be suitable for VoIP it must pass specific requirements. To make sure that the
site meets these requirements an IP ready check and a site survey must be completed at each site before
VoIP implementation.
One way delay must not exceed 100 ms
Round Trip delay must not exceed 200 ms
Jitter must not exceed 100ms
Packet loss must not exceed 1%
Data switches be full-duplex and manageable
Routers must provide QOS
Adequate bandwidth for estimated VoIP traffic (see bandwidth calculator)
Depending on how QOS policies are built into the network, assignments might be needed in the
UNIVERGE SV9100 programming.
Simple MCU Video
The Simple MCU Video feature provides a built in video conferencing MCU for up to four standard SIP
phones using the Remote Conference feature of the SV9100 system.
The video functionality can also be set to use system VoIP DSP resources for non-MCU video
conferencing if peer-to-peer calls between standard SIP phones is disabled or not supported by the