SpectraLink NetLink Wireless Telephones Best Practices White Paper Wireless Telephone - Manual (Page 10)

White Paper
Page 9
3.0 Network Infrastructure Considerations
3.1 Physical
Connections
The NetLink Wireless Telephone infrastructure components should
connect to the facility’s local area network (LAN) using Ethernet
switches, as opposed to Ethernet hubs, to provide adequate bandwidth
and limit traffic collisions.
Ethernet switches should be configured to negotiate the connection
requirements automatically. NetLink Telephony Gateways require
10Base-T, half-duplex transmission and the NetLink SVP Server utilizes
10/100Base-T, half or full-duplex transmissions and can be set to
automatically negotiate or be configured to a specific transmission
configuration.
Network wiring is an important component of any Ethernet based system
and is subject to local and state building code specifications. Category
5, 4-pair 10/100Base-T Ethernet cabling should be used for NetLink
Wireless Telephone infrastructure equipment.
3.2 Assigning IP
Addresses
NetLink Wireless Telephones operate as LAN client devices and
therefore require IP addresses to work with the network. IP addresses
can be assigned statically through the configuration menus on the
handsets, or dynamically using standard DHCP protocol. For dynamic
IP addressing, a DHCP server must be available.
NetLink Telephony Gateways and NetLink SVP Servers also require IP
addresses and support either static or DHCP address assignment.
When utilizing multiple NetLink SVP Servers with an IP telephony
server, the master NetLink SVP server must be assigned a static IP
address. When operating with an IP telephony server, the NetLink
SVP Server also requires a range of IP addresses that covers the total
number of Wireless Telephones supported by that NetLink SVP server.
When a NetLink Wireless Telephone registers with the telephony server,
one of the IP address within this range is used to communicate between
the NetLink SVP Server and the telephony server. This IP address is
used by the IP telephony server as an alias for the NetLink Wireless
Telephone, but will not be equivalent to the handset’s IP address that
was either statically assigned or obtained from the DHCP server. The
range of alias IP addresses must not be used within any DHCP range or
cover the IP address used by any other device. In the case where
multiple NetLink SVP Servers are used for added capacity, an exclusive
range of IP addresses equivalent to the number of total users each
NetLink SVP Server can support is required per NetLink SVP Server.
3.3 Software
Updates Using
TFTP
All NetLink components can be field-upgraded with new software to add
features or capabilities and bug fixes. NetLink Wireless Telephones
utilize a TFTP client to automatically download new code when
available. NetLink Telephony Gateways have an integrated TFTP
server to support Wireless Telephone and OAI Gateway software
upgrades. For installations that do not use NetLink Telephony