HP ProCurve Switches / Wireless - Interoperability between the Aastra Wireless Phone 312 and ProCurve Wireless Services

Interoperability between the Aastra Wireless Phone 312 and ProCurve Wireless Services

HP ProCurve Networking

To manually configure the phone’s power save mode, use the left softkey. You can select between:

• Auto: In this mode, the device attempts to use uAPSD if the AP signals that it will support this. If the AP does

not support uAPSD, the Aastra Phone 312 will use asynchronous PS-Poll. Support for uAPSD is supported

can be determined in the Site survey mode. If serious interruptions in the voice connection occur quite

frequently, use another power save mode, or else no power save mode at all.

• uAPSD: Unscheduled Automatic Power Save Delivery is defined in the 802.11e standard. This mode

combines the longest battery life with highest sound quality. If you select this mode in the WLAN profile but it

is not supported by the AP, the Aastra Phone 312 will not use a power save mode.

• Async. PS-Poll: This mode uses the PS-Poll packages defined in 802.11 in order to request voice packages

from the AP. Unlike the standard, however, in this mode PS-Poll packages are not only used after the

Beacons but asynchronously to them. This allows nearly achieving the battery life of uAPSD with identical

sound quality. Not all APs support this mode. If serious interruptions in the voice connection occur quite

frequently, you should use another power save mode, or else no power save mode at all.

• 802.11 PS-Poll: This mechanism has been defined in the original 802.11 standard. A disadvantage is that a

large part of the package is delayed by the duration of the beacon interval, impairing sound quality.

Nevertheless, this mode may be useful if the AP supports no other power save mode, but you still want long

talk times.

• None (no power save mode): No power save mode is used. This reduces battery life for voice connections

by at least half. This mode can be used if the AP is not compatible with any power save mode. In contrast to

the other settings, this setting also deactivates the search for access points in the background, since this

search also depends on the power save mode. Thus, with this mode handover behavior deteriorates.

6.4 Determine uAPSD support

To determine whether a WLAN supports uAPSD:

• On the Aastra Phone 312, use the Site survey tool from System | Network | Tools. This gives you a view of the

different available SSIDs.

For example, if you choose the voice WLAN that was previously configured on the WESM zl, it displays:

SSID voice

C 1 TKIP AES

PSK WME APSD

This display indicates that for the voice WLAN, encryption is set to pre-shared key (PSK) with TKIP and AES

protocols, and WME and APSD are supported.

7. Firmware versions and phone upgrade

7.1 Firmware versions used

ProCurve firmware versions used for this application note:

• K.13.09 for switch 5406zl

• WT.01.15 for WESM zl

Aastra Wireless Phone 312 firmware:

• wipp-1.0.8rc5.dnld

7.2 Upgrade phone’s firmware

To upgrade the Aastra Phone 312 firmware, you copy the .dnld firmware file from a TFTP server reachable from the

WLAN to which the phone is connected. To upgrade the firmware:

1. Connect the phone to a WLAN from which the TFTP server is reachable.

2. On the phone go to: Menu | System | Software | Update

3. In Settings, enter the protocol (ftp, http or tftp), the server IP address, and the file name.