User manual

TD 92675EN
20 June 2012 / Ver. E
Configuration Manual
Ascom i62 VoWiFi Handset
65
10. Troubleshooting
10. Troubleshooting
This section contains information on how to solve common operational problems, and
information on warnings you may receive.
Go through the following lists if you encounter any problems. If this checklist does not solve
the problem, contact the system administrator.
If other users have similar problems, there may be a system error.
10.1 Fault Symptoms
If any of the following Fault Symptoms occur, follow the instructions below.
Fault Probable cause Action or comment
The display stays dark Low battery level or faulty
handset.
Charge the battery. If the handset
does not work after charging,
contact the system administrator.
There is no ring signal “Ringer off“ icon is on, or
ringer volume is set to
silent, or faulty handset.
Press and hold the Mute key, or
increase volume (in the handset,
select Settings > Sound & Alerts >
Volume) or contact the system
administrator.
Connected call but no
sound or one way sound
IP addressing fault, or
muted or bad speaker/
microphone
1) Note the IP address of the
handset. Turn the handset off and
ping the IP address. If something is
found, the problem is an IP address
conflict.
2) Check if the handsets are muted.
3) Use a headset to eliminate bad
speakers/microphone.
Voice quality is bad Increased traffic load or
interference.
1) Check if QoS is working in both
directions. Voice traffic should be
prioritized on both the LAN and the
WLAN.
2) Connect to other phones (wired,
analogue or external) to determine
if it is the other end that may cause
bad quality.
3) Do a site survey and check for
areas with under/over coverage and
other interfering 802.11 systems.
4) Do a network performance test to
ensure the wired LAN/backbone has
adequate capacity.
5) Use a spectrum analyzer and look
for non 802.11 interference.