AASTRA SIP-DECT (Release 2.1)- OM System Manual - Installation, Administration and Maintenance EN - Manual (Page 67)

SIP – DECT OM System Manual Release 2.1 5 OMM Web Service
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3 Change the desired settings of the WLAN profile. You need at last to define the ESSID
setting. The different settings are explained in detail in the sections below.
4 Activate the Profile active setting, otherwise the WLAN profile is inactive which de-
activates the WLAN function for RFPs that are assigned to this WLAN profile.
5 Press the OK button to apply the settings. If you created a new WLAN profile, you can
proceed by assigning the WLAN profile to the desired RFPs (see chapter 5.6.3). If you
changed an existing WLAN profile, the settings are applied to the assigned RFPs
automatically.
The following description details the different parameters that are available on the New
WLAN profile page resp. on the WLAN profile [Number] page.
General settings
• Profile active : Activate this checkbox to activate the profile. This in turn activates the
WLAN function for all RFPs that are assigned to the WLAN profile.
• SSID : Enter a descriptive character string to identify the WLAN network (e.g.
“OurCompany”).The service set identifier is broadcasted by the RFP within “WLAN
beacons” in a regularly interval. The SSID identifies the WLAN network and is visible by
all WLAN clients. This is typically used with a scan function, e.g. from a WLAN client that
tries to establish a connection. The SSID should not exceed 32 characters and it is
advisable not to use unusual characters that may trigger WLAN client software bugs.
• VLAN tag (number, 1..4094, default: off): You can separate VoIP and client data traffic
(transferred via WLAN) by using different virtual LANs, e.g. to prevent bulk data transfers
to interfere with VoIP. To use a separate VLAN for the client data traffic, activate the
check box and enter the desired VLAN number (see chapters 7.13 and 7.8).
• Beacon period (milliseconds, 50..65535, default: 100 ms): Determines the WLAN beacon
interval. A higher value can save some WLAN airtime that can be used for data transfers.
• DTIM period (number, 1..255, default: 5): Determines the number of beacons between
DTIM messages. These messages manage the WLAN wakeup/sleep function e.g. that is
critical for battery powered WLAN clients.
• RTS threshold (bytes, 0..4096, default: 2346): If a WLAN packet exceeds this threshold,
it will be transferred with RTS/CTS handshake. This may improve transfer reliability if
several WLANs share the same channel. The default of 2346 byte switches off this
function because the IP-MTU is typically only 1500 byte.
• Fragmentation threshold (bytes, 0..4096, default: 2346): If a WLAN packet exceeds this
threshold, it will be transferred in chunks. This may improve transfer reliability for a weak
connection. The default of 2346 bytes switches off this function because the IP-MTU is
typically only 1500 byte.
• Maximum rate (list of rates in Mbps, 1..54, default: 54): Determines the maximum transfer
rate used by the RFP. You can limit the rate to increase the WLAN range, e.g. to prevent
WLAN clients in the vicinity of the RFP to disturb distant WLAN clients.
• 802.11b/g mode (selection, Mixed / b-only / g-only, default: Mixed): Both the older and
long-ranged B-Mode and the newer and faster G-Mode are typically supported by WLAN
clients. You can change this setting to prevent problems with very old WLAN clients.
• Hidden SSID mode (on / off, default: off): If switched on, the transmission of the SSID
within beacons is suppressed. This in turn requires a more elaborate and manual
connection procedure for WLAN clients.