SpectraLink h340 - Manual (Page 5)

SpectraLink Corporation Configuration and Administration—NetLink e340/h340/i640 Wireless Telephone
with SIP
PN: 72-1089-02-D.doc Page 5
2. NetLink Wireless Telephone Overview
The NetLink e340/h340/i640 Wireless Telephones are mobile handsets for
workplace IP telephone systems. The handsets operate over an 802.11b wireless
Ethernet LAN providing users a wireless voice over IP (VoIP) extension. By
seamlessly integrating into a SIP environment, handset users are provided with high-
quality mobile voice communications throughout the workplace. The handset gives
users the freedom to roam throughout the workplace while providing all the features
and functionality of a SIP desk phone.
The handsets 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 11 Mb/s.
In the SIP environment, the handsets support up to three proxy servers. Each
handset may have five line appearances and two calls per line. Each handset may
have up to 10 sets of credentials to identify itself by current user.
2.1 SpectraLink Voice Priority (SVP) and QoS
The NetLink SVP Server is an Ethernet LAN device that works with the AP to
provide quality of service (QoS) on the wireless LAN. Voice packets to and from the
NetLink Wireless Telephones are intercepted by the NetLink SVP Server and
encapsulated for prioritization as they are routed to and from a SIP proxy server. See
the NetLink SVP Server: Installation, Setup and Administration document for
detailed information about this device.
2.2 Security
NetLink Wireless Telephones support the 802.11i standard including Wi-Fi
Protected Access (WPA and WPA2) in the pre-shared key (PSK) mode. As vendors
introduce access point (APs) that are eligible to become Wi-Fi CERTIFIED for
WPA-PSK and/or WPA2-PSK, SpectraLink will determine compatibility with the
NetLink Wireless Telephones and include these APs on the NetLink Wireless
Telephone WLAN Compatibility List.
NetLink Wireless Telephones support basic WMM as part of the 802.11e standard.
If the AP supports WMM, the handset automatically discovers and uses it. WMM
does not replace the NetLink SVP Server as described in the first paragraph. WMM
settings must be configured on the NetLink SVP Server.
The NetLink e340/h340/i640 Wireless Telephone supports Wired Equivalent
Privacy (WEP) as defined by the 802.11 standard. SpectraLink offers the product
with both 40-bit and 128-bit encryption.
 The latest software versions are required to support the features described in
this document.