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2-6 NEC MH150/MH160 Mobile Handset Overview
NEC MH150/MH160 Mobile Handset Administration Guide - Revision 2
Ethernet switch
Ethernet switches Interconnect multiple network devices, including the
WLAN Voice Gateway, the NEC PBX, wired IP phones and the APs.
Ethernet switches provide the highest performance networks, which can
handle combined voice and data traffic, and are required when using the
NEC MH150/160 Wireless Handsets.
Although a single Ethernet switch network is recommended, the
handsets and the WLAN Voice Gateway can operate in larger, more
complex networks, including networks with multiple Ethernet switches,
routers, VLANs and/or multiple subnets. However, in such networks, it is
possible for the quality of service (QoS) features of the WLAN Voice
Gateway 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.
TFTP server
TFTP server software is required in the system to distribute software to
the handsets.
There are two types of files that are delivered to the MH150/MH160 SIP
handset whenever a handset is powered-up: 1) configuration software
and 2) SIP configuration parameters.
The TFTP software may be on a different subnet than the gateway, APs
and/or handsets.
Required in the system to deliver SIP configuration parameters to the
SIP handset whenever a SIP handset is powered-up. The location of the
SIP TFTP server is separately specified in SIP handset administration
parameters. Refer to
“NEC MH150/MH160 Wireless Handset
Configuration” on page 3-1 (The Admin Menu section). Normally, the
SIP TFTP server is the same as the network TFTP server, see reference
above.
NTP (Network Time Protocol) Server
If WPA Enterprise security is used, the handset will verify the PEAP
certificate has a valid date and time with the NTP Server on the
network, if one is available. If an NTP Server is not available, the
certificate will be deemed valid and operate accordingly.
Authentication Server (if using WPA2 Enterprise)
A RADIUS authentication server must be used to provide username/
password based authentication using RSA certificates for PEAPv0/
MSCHAPv2 or PAC files for EAP-FAST.