Aastra 312w, Руководство пользователя

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WLAN: Registering a handset
you must enter it again. In the AP, always set the first WEP key as default value and also use it in the
device settings.
Power save mode : Using this setting, you can influence which WLAN power saving mode will be
used during the voice connections. In most cases the Auto selection should find the suitable setting.
Not every AP supports all power saving modes. In some configurations, the Aastra 312w will not be
able to automatically detect the best power saving mode to be used in a reliable way. In these cases
it may be useful to manually set another mode. Using the left softkey
select . . .
Auto : In this setting, the device tries to use U-APSD if the AP signals that it will support this.
If the AP does not support U-APSD, the Aastra 312w will use asynchronous PS-Poll.
Whether U-APSD is supported or not can be determined in the site survey mode. If serious
interruptions in the voice connection occur quite frequently, you should use another power
saving mode or no such mode at all.
U-APSD : Unscheduled Automatic Power Save Delivery is defined in the 802.11e standard.
This mode combines the longest battery life-span with highest sound quality. If this mode is
selected in the WLAN profile, however not supported by the AP, the Aastra 312w will not
use a power saving mode.
Async. PS-Poll : This mode uses the PS-Poll packages defined in 802.11 in order to request
voice packages from the AP. In contrast to the standard, the PS-Poll packages are not only
used after the Beacons but asynchronously to them. In this way, one almost reaches the bat-
tery life-span of U-APSD with identical sound quality. Not all APs support this mode. If seri-
ous interruptions in the voice connection occur quite frequently, you should use another
power saving mode or no such mode at all.
802.11 PS-Poll : This mechanism has been defined in the original 802.11 standard. It involves
the material disadvantage that a large part of the packages is delayed by the duration of the
Beacon interval. This impairs the sound quality. Yet, this mode may be useful if the AP does
not support any other power saving mode, but you, nevertheless, require long talk times.
None (power saving mode)
No power saving mode is used. The battery life-span for voice connections is thus at least
halved. This mode can be used if the AP is not compatible with any other power saving
mode. In contrast to the other settings, this setting also deactivates the search for access
points in the background as this search also depends on a power saving mode. Thus, the
handover behaviour is deteriorated.
IP address from : Choose the desired option from those offered in the list using the left softkey .
Press the arrow key in order to access other entries. If you select the setting “static” instead of “per
DHCP”, you will have to carry out the entries for the IP address, net mask, gateway and DNS server.
Enter the necessary points for the separation of the blocks with the pound button.
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