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118 Troubleshooting
Configuration problems
Certain problems are associated with improper configuration of either the
WLAN IP Telephony 2245, the optional WLAN Application Gateway 2246,
or the wireless handset.
Configuration problems are generally corrected by changing the
configuration on the WLAN IP Telephony 2245, the WLAN Application
Gateway 2246, or the wireless handset.
There can also be incorrect programming of the APs. For compatibility and
configuration information about the APs in use at the site, see “Compatible
Access Points” (page 215).
Duplex mismatch
A duplex mismatch on the WLAN can cause the wireless handsets to
not operate properly. Double-check WLAN connections and interfaces to
ensure that they are all configured as full-duplex.
No ring
It is possible in certain situations for a voice mail message to be left
on a wireless handset without the wireless handset ever ringing. This
situation could occur when a wireless handset is out of range of an AP
for even a few seconds. If during the time the wireless handset is out of
AP range and an incoming call is received, the incoming call receives the
Call Forward No Answer (CFNA) treatment configured for that wireless
handset, such as forwarding the incoming call to voice mail.
To prevent this situation from occurring, ensure adequate AP coverage in
all areas where a wireless handset is used.
Far-end echo
Sometimes, when using the G.711 codec, echo might be perceptible
at the far end, and be more severe when the wireless handset is in an
environment with extreme background noise and the wireless handset
volume is set to maximum volume.
To correct this problem, reduce the volume setting on the wireless
handset, , the microphone gain or both.
You can change the microphone gain from the Standby Menu, Noise
Mode.
Alternatively, if you experience this problem, consider using the G.729
codec.
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 03.04 Standard
23 September 2008
Copyright © 2004–2008 Nortel Networks
.