NEC MH110 - SETUP AND Administration Manual page 20

2-6 MH110/MH120 IP Quick Start Guide
NOTE
• Ethernet Switch - interconnects multiple network devices, including
the SVP Server, the supported NEC IP telephony system, NEC
DtermIP-16LDs and the access points. Ethernet switches provide
the highest performance networks, which can handle combined voice
and data traffic, and are required when using the MH110/MH120
UNIVERGE WL Mobile Handsets.
Although a single Ethernet switch network is recommended, the
Mobile Handsets and the SVP Server can operate in larger, more
complex networks, including networks with multiple Ethernet
switches, routers, VLANs, and/or multiple subnets, as long as the
SVP Server and access points are on the same subnet.
However, in such networks, it is possible for the quality of service
(QoS) features of the SVP Server to be compromised, and voice
quality may suffer. Any network that consists of more than a single
Ethernet switch should be thoroughly tested to ensure any quality
issues are detected.
The MH110/MH120 cannot "roam" from one subnet to another. If routers and multiple
subnets are in use, the Mobile Handsets must only use access points attached to a
single subnet, or be powered off and back on to switch to a different subnet.
• NEC DtermIP-16LD - The wired LAN desksets provided by NEC for
use with the supported NEC IP telephony system.
• TFTP Server - Required in the system to distribute software to the
Mobile Handsets. May be on a different subnet than the supported
NEC IP telephony device(s) and APs.
MH110/MH120 IP Wireless Telephone Setup and Administration Guide - Revision 1