NEC MH110, Руководство администратора

Страница: 16 / 62

2-2 MH110/MH120 IP Quick Start Guide
MH110/MH120 IP Wireless Telephone Setup and Administration Guide - Revision 1
The Wireless Telephones reside on the wireless LAN with other wireless
devices using Direct Sequence Spread Spectrum (DSSS) radio
technology. The handset radio transmits and receives packets at up to
11Mb/s. The MH110/MH120 Wireless Telephone supports Wired
Equivalent Privacy (WEP) as defined by the 802.11b specification. NEC
offers the product with both 40-bit and 128-bit encryption. WEP
increases the security of the wireless LAN to a level similar to a wired
Ethernet LAN.
Quick Start Guide
Table 2-1 describes five conditions that must be met for MH110/MH120
Wireless Telephones.
Table 2-1 MH110/MH120 Wireless Telephones Requirements
NOTE
• IP multicast addresses are used by the MH120 Wireless Telephone system. This requires
that multicasting be enabled on the subnet used for the MH110/MH120 Wireless
Telephones,
SVP Serv
e
r
, and Telephony Gateways.
• Routers are typically configured with filters to prevent multicast traffic from flowing outside
of specific domains. The wireless LAN can be placed on a separate VLAN or subnet to
reduce the effects of broadcast and multicast traffic from devices in other network
segments.
Requirements Descriptions
Wireless LAN A wireless LAN must be properly configured and
operational through the use of 802.11b wireless
access points (APs) listed on the Access Point
Compatibility matrix.
TFTP Server A TFTP Server must be available on the network
in order to load the appropriate software into the
Wireless Telephones.
Refer to
Chapter 5, “License Management” for
detailed instructions for loading software on
Wireless Telephones.
NEC VoIP The supported NEC VoIP solution must be
connected to your network and completely
operational.