NEC Univerge SV8100 Features And Specifications Manual page 803

UNIVERGE SV8100
For best performance, it is recommended to use digital trunks when using IP phones.
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Digital (ISDN, T-1, and SIP) trunks do not suffer from this problem.
Conditions
The voice quality of VoIP depends on variables such as available bandwidth, network
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latency and Quality of Service (QoS) initiatives, all of which are controlled by the network
and Internet service providers. Because these variables are not under its control, NEC
cannot guarantee the performance of the user's IP-based remote voice solution. Therefore,
NEC recommends connecting VoIP equipment through a local area network using a Private
IP address.
IP Multiline Stations must register with the IP address of the IPLA/IPLB. The IP Multiline
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stations registering via a URL is not supported.
If an internal paging group has only IP Multiline Stations, mutlicast is used for the page. IP
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multiline terminals must have a gateway programmed to accomplish a multicast
transmission. When an actual gateway device does not exist on the network, a dummy
gateway address on the same subnet must be defined. If the paging group has any TDM
stations or an external speaker, multicast is not used and the gateway is not required.
The system sees terminal types 1 (Economy), 2 (Value), 3 (Desi-Less), 4 (Sophisticated)
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and 5 (Softphone) as the same terminal type.
When using Multiple Logon, the same Personal ID index can be assigned to an
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ITL/Softphone, a CTI (Desktop), and an MH240 terminal type.
Two ports of the same terminal type (Program 15-05-26) cannot be assigned to the same
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Personal ID index (Program 15-05-27).
Program 10-46-01 must be set to 1 (Auto) or 2 (Manual) for Multiple Logon to work.
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When three ports are assigned the same Personal ID index in Program 15-05-27, if
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Program 15-05-26 is not set for those ports, the terminal types will be assigned based on
order of login. If Program 15-05-26 is set, the login order does not matter and they will
assign the correct port.
The Override feature functions the same as single login.
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With Version 4000 or higher software, DT700 terminals and wireless IP terminals utilizing
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NAPT can be registered to the primary or a secondary system. Refer to the feature
SV8100 NetLink on page 2-1489
With SV8100 Version 5000 (5.00 or higher) software and PZ-IPLB daughter board
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installed, half duplex connections are not supported. For troubleshooting purposes, a
managed switch capable of port mirroring is required to capture packet data from the
SV8100 IPLB Ethernet port.
IP Multiline Station (SIP)
for additional details.
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