SpectraLink NetLink e340 - Manual (Page 8)

SpectraLink Corporation Configuration and Administration—NetLink e340/i640 Wireless Telephone
Cisco CallManager and IP Phone 7960 Emulation
72-1082-02-F.doc Page 8
2.4 System Components
NetLink e340 Wireless Telephone The NetLink e340 Wireless Telephone is a
lightweight, durable handset specifically designed for mobile workplace use within a
facility using the Cisco CallManager and 802.11b APs in a wireless LAN.
NetLink i640 Wireless Telephone The NetLink i640 Wireless Telephone offers a
durable design with push-to-talk functionality.
Handset functionality is provided by emulating the Cisco IP Phone 7960. Using
SCCP, the handset supports the 6 line/speed-dial buttons and softkeys. Among
other features, the handset can receive calls directly, receive transferred calls, transfer
calls to other extensions, initiate conference calls, and make outside and long
distance calls (subject to the restrictions applied in your facility.) The handsets are to
be used on-premises; they are not cellular or satellite phones.
NetLink e340/i640 Wireless Telephones use Direct Sequence Spread Spectrum radio
technology (DSSS) to transmit audio packets over wireless LAN APs that support
SpectraLink Voice Priority (SVP).
NetLink SVP Server SpectraLink Voice Priority (SVP) is the SpectraLink quality of
service (QoS) mechanism that is implemented in the handset and AP to enhance
voice quality over the wireless network. SVP gives preference to voice packets over
data packets on the wireless medium, increasing the probability that all voice packets
are transmitted efficiently and with minimum or no delay. SVP is fully compatible
with the IEEE 802.11b standards.
The NetLink SVP Server is an Ethernet LAN appliance that works with the AP to
provide QoS on the wireless LAN. All SCCP packets to and from the NetLink
e340/i640 Wireless Telephones pass through the NetLink SVP Server and are
encapsulated for prioritization as they are routed to and from the CallManager or
other telephone.
CallManager The software-based call-processing component of the Cisco IP
telephony solution.
Access points (APs) are supplied by third party vendors and provide the
connection between the wired Ethernet LAN and the wireless (802.11b) LAN. APs
must be positioned in all areas where NetLink Wireless Telephones will be used. The
number and placement of APs will affect the coverage area and capacity of the
wireless system. Typically, the requirements for use of NetLink e340/i640 Wireless
Telephones are similar to that of wireless data devices.
APs must utilize SpectraLink Voice Priority (SVP). Contact SpectraLink, or a
certified SpectraLink distributor, for information about APs that support SVP.
Ethernet switch Interconnects multiple network devices, including the NetLink
SVP Server, the CallManager, Cisco 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 NetLink e340/i640 Wireless
Telephones.
Although a single Ethernet switch network is recommended, the handsets and the
NetLink SVP Server can operate in larger, more complex networks, including