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Issue Possible Cause & Solution
While on speakerphone, the
other party’s voice breaks up,
or I hear an echo of my own
voice.
• Just after a call begins, the unit may not have yet adjusted itself to the
call’s environment.
→ Just after a call begins, take turns with the other party talking to
each other. The unit will adjust itself in accordance with the call
environment so that both you and the other party can hear each
other as clearly as possible.
• 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 unit within 2 m (7 ft) of radios, televisions, office
equipment, microwave ovens, air conditioners, or other devices
that emit electrical noise.
→ If using the unit in a room with windows, close the curtains or blinds
to prevent echoes.
→ Use the unit in a quiet environment.
• The unit was moved during a call.
→ Do not move the unit while on a call.
• The microphone is blocked.
→ During a call, avoid blocking the microphone with your hands or
other objects.
• 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.
I cannot hear the other party
through the handset.
• The handset is not connected correctly.
→ Check whether the handset is connected correctly. If it is not
connected correctly, connect it again (Page 100).
Document Version 2011-09 Operating Instructions 125
Troubleshooting