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IP Telephony Configuration Guide
Chapter 4
Installing NetVision telephones
This chapter describes how to configure the Symbol NetVision handsets to the Business
Communications Manager system.
NetVision connectivity
The Business Communications Manager supports access points, NetVision handsets and other
wireless IP devices that use either IEEE 802.11 (1 or 2 M-bits/sec, Frequency Hopping Spread
Spectrum) or IEEE 802.11B (11 M-bits/sec, Direct Sequence Spread Spectrum) technology.
NetVision telephones use an enhanced version of H.323, referred to as H.323+.
NetVision and NetVision Data wireless IP telephones connect to the Business Communications
Manager over a LAN through the Business Communications Manager LAN or WAN card. The
Business Communication Manager sees these telephones as IP telephones, which means that the
DN records are assigned from the digital range rather than the Companion or ISDN range of DNs.
The default codec for NetVision handsets is G.729. However, if the NetVision handsets connect
over IP trunks, the codec of the IP trunk takes precedence.
From within the system, the handsets can make and receive calls from any trunk type supported by
the system, which can include voice over IP (VoIP), digital and analog trunks. The handset DN
record determines which lines the handset can access.
The handset can communicate with any other type of telephone supported by the Business
Communications Manager system.
Access points
Instructions about installing the access point are provided with the access point equipment, which
is sold and installed separately. The access point is set up with a unique identifier (ESS ID) which
is entered into the handset either through a configuration download or manually through the
dialpad to allow the handset to access the system through that access point.
Keycodes
Before setting up NetVision telephones, you must enable keycodes for IP telephony. For
information on entering keycodes, see the Keycode Installation Guide.
Note: NetVision handsets experience communications problems if your system has a
NAT between the handset internet connection and the published address of the Business
Communications Manager LAN. For this reason, this configuration is NOT supported.
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