SpectraLink h340 - Manual (Page 21)

SpectraLink Corporation Configuration and Administration—NetLink e340/h340/i640 Wireless Telephone
with SIP
PN: 72-1089-02-D.doc Page 21
signals. If this is the situation at your site, use Static Entry or Learn Once in an area
without overlapping ESSIDs.
* Learn Once Allows the handset to scan all ESSIDs for a DHCP server and/or
the NetLink Telephony Gateway. Once either is found, the handset retains the
ESSID from whichever AP it associates with at that point. When overlapping
wireless systems exist, the Learn Once feature allows the handset to use only the
ESSID established at first learn at all subsequent power ons. This ESSID is
retained by the handset until the ESSID option is reselected.
Learn Always Allows the handset to automatically learn the ESSID at each
power on or loss of contact with the wireless LAN (out of range). This may be
useful if the handset will be used at more than one site.
Static Entry If the APs do not accept broadcast ESSID, or if there are
overlapping wireless systems in use at the site, enter the correct ESSID manually.
Security
*NONE disables any 802.11 encryption or security authentication mechanisms.
For WEP, WPA-PSK and WPA2-PSK set each of the following options to
match exactly the settings in the APs.
Encryption codes display as they are entered. For security reasons codes will
not display when a user returns to the Admin menu, Encryption options.
WEP (Wired Equivalent Privacy) is a wireless encryption protocol that encrypts data
frames on the wireless medium allowing for greater security in the wireless network.
If WEP is required at this site, you must configure each handset to correspond with
the encryption protocol set up in the APs. Select the entries from the options below
to enable the handset to acquire the system.
Authentication Select either Open System or Shared Key .
WEP On/Off Select either WEP Off or WEP On .
Key Information
Default Key Enter the key number specified for use by the handsets. This
will be 1 through 4
.
Key Length Select either 40-bit or 128-bit depending on the key length
specified for use at this location.
Key 1 through 4 Scroll to the key option that corresponds to the Default Key
that was entered above. Enter the encryption key as a sequence of
hexadecimal characters. (Use the 2 and 3 keys to access hexadecimal digits A-
F, use the Right Arrow key to advance to the next digit, and the Left Arrow
key to backspace.) For 40-bit keys, enter 10 digits. For 128-bit keys, enter 26
digits. The display will scroll as needed.
Rotation Secret This is used for proprietary WEP key rotation. Refer to your
custom document if this feature is supported in your system.
Cisco FSR (Fast Secure Roaming) In order to provide the highest level of security
without compromising voice quality on Cisco Aironet wireless LAN APs,