TD 92675EN
9 December 2011/ Ver. D
Configuration Manual
Ascom i62 VoWiFi Handset
64
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
VoWiFi Handset.
Charge the battery. If the VoWiFi
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 VoWiFi
Handset.
Press and hold the Mute key, or
increase volume (in the VoWiFi
Handset, select Settings > Sound &
Alerts > Volume) or contact the
system administrator.
Connected call but no
sound or one way sound
IP adressing fault, or
muted or bad speaker/
microphone
1) Note the IP address of the VoWiFi
Handset. Turn the VoWiFi Handset
off and ping the IP address. If
something is found, the problem is
an IP address conflict.
2) Check if the VoWiFi 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 analyser and look
for non 802.11 interference.