Issue Possible Cause & Solution Reference
When forwarding a call,
Hold Recall is heard when
selecting a destination on
the Contacts screen.
• The Extension First Digit Timer setting of the PBX has not
been set to 250 s.
→ Using the PBX’s PC Maintenance Console, set the
Extension First Digit setting to 250 s. For more details,
refer to the PBX’s documentation or consult your
administrator.
—
Sound Quality
Issue
Possible Cause & Solution Reference
The other party cannot
hear my voice.
• The KX-NT400 is muted.
→ If is displayed, press to turn off the mute feature.
Page 72
• Objects are obstructing the microphone.
→ Do not obstruct the KX-NT400 during calls. Keep your
hands, as well as common objects such as folders, cups,
and coffee pots away from the KX-NT400 during calls.
—
Sound cuts out; I can hear
myself through the
speaker.
• If using DSL service, a device connected between the
KX-NT400 and the telephone jack is causing interference.
→ Connect the KX-NT400 directly to the telephone jack if
possible, and/or consult your DSL service provider.
—
• You are too far away from the microphone.
→ Try speaking closer to the microphone.
—
• The environment is not suited to speakerphone calls.
→ Do not use the KX-NT400 within 2 m of projectors, air
conditioning devices, fans, or other audible or electrical
noise emitting devices.
→ If using the KX-NT400 in a room with windows, close the
curtains or blinds to prevent echoes.
→ Use the KX-NT400 in a quiet environment.
—
• The KX-NT400 was moved during a call.
→ Do not move the KX-NT400 while on a call.
—
• Objects are obstructing the microphone.
→ Do not obstruct the KX-NT400 during calls. Keep your
hands, as well as common objects such as folders, cups,
and coffee pots away from the KX-NT400 during calls.
—
• The other party is using a half-duplex speakerphone.
→ If the other party is using a half-duplex speakerphone,
sound may cut out occasionally during calls. For best
performance, the other party should use a full-duplex
speakerphone.
—
186 Operating Instructions Document Version 2010-01
Appendix
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