is around -75 dBm and less, the handset gets DECT Frame Errors for Portable Part
(handset) and Fixed Part (base) direction. These errors might cause audio mute or noise
problems.
• DECT Codec: This field displays the DECT codec. For narrowband audio, the DECT
codec is G.726 and for wideband audio, it is G.722. See the following table:
VoIP codec
DECT codec
G.711 a-law
G.726
G.711 μ-law
G.726
G.726
G.726
G.722
G.722
G.729
G.726
BV32
BV32 (if supported)
OPUS
G.722
• Channels: The four DECT channels indicate air interference. If the first channel from left
is low, then there is a high intensity of DECT interference, and you must expect audio
problems at some distance from the base. When the handset is near the base, you can
have good audio, even at value 0. If the rough estimate is below 30, then you must
expect shortened DECT range.
Operational problems
Fault
Problem cause
Action or comment
No ringing
The sound off icon is seen in the
status bar; hence the handset is
silent mode.
Increase the volume in Audio
Settings, or long press the
#-key
in idle.
Note:
If the Audio Settings is
greyed out and cannot be
changed, it is because the
silent mode is enabled by
long pressing the #-key.
Please, long press the #-key
in idle to disable this silent
mode.
The handset does not respond
when pressing on the keys
The keylock is enabled, and a
“Press and hold *” screen is
displayed when pressing any key.
Long press (press for more than 2
seconds) the *-key.
The handset shows “Searching”
in the display
The handset is out of the
coverage area of the base station
system.
Please move the handset back in
coverage of the base system.
Operational problems
August 2020
Using Avaya Wireless Handset D260
95