Scan For Unknown System; Range Beep; Configurable Roaming Threshold; Range Beep On A Configurable Roaming Threshold - ASCOM i75 Configuration Manual

Configuration Manual
Ascom i75 VoWiFi Handset
9.1.3

Scan for Unknown System

This gives a list of all existing ESSIDs found during the scan.
1 Create an ESSID which does not exists.
2 Enter an descriptive system name.
3 Make sure the handset is personal.
4 Select the previously created system in the handset. "No system" is displayed.
5 Press "*#77#" on the handset to access the site survey menu.
6 Select "Scan all channels" to list all ESSIDs available.
7 Select the applicable ESSID to display its associated APs.
8 Select an AP to display information such as ESSID, MAC address or QoS.
9.2

Range Beep

The range beep function enables a beep to be played whenever the handset experiences a
filtered field strength of below the configured value (default -70 dBm) from the currently
associated access point. Since the value is filtered, sudden drops in field strength caused
by the environment, for example walking through a door into a room, will be delayed,
thus it is important to walk slowly through the site to cover all weak spots.
9.2.1

Configurable Roaming Threshold

Since the roaming threshold of the handset is set at the same value as the range beep (-
70 dBm) each roam will cause a small period of beeping. In the site survey menu there is
the possibility to change the roaming/low RSSI threshold. This is useful if a specific area is
designed to have another coverage level than -70 dBm.
In normal operation the handset uses -70 dBm, it is very important to change this value
back to -70 dBm (or simply reboot the handset) before validating the rest of the system.
1 Press "*#77#" on the handset to access the site survey menu.
2 Select "Range level"
3 Enter the new threshold and press "Set".
9.2.2

Range Beep on a Configurable Roaming Threshold

A beep is played when the signal goes below the selected threshold.
1 Press "*#77#" on the handset to access the site survey menu.
2 Enable/Disable the Range beep checkbox.
2008-11-20/ Ver. B
TD 92431GB
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