Issue Possible Cause & Solution Reference
I cannot redial by pressing
[REDIAL/PAUSE/
].
• The number you are trying to redial is too long.
→ If the dialled number contains too many digits (more than
32 digits for IP calls with IP-PBX connection, more than
128 digits for TEL calls), it cannot be redialled correctly.
—
• You pressed [REDIAL/PAUSE/
] after you began
dialling.
→ If you press [REDIAL/PAUSE/ ] after you begin
dialling
a phone number, the button functions as the pause
button. To redial the last number dialled, press [
] then
[REDIAL/PAUSE/
]. To redial one of the last 10
phone numbers dialled, press [REDIAL/PAUSE/ ],
press [ ]
or [
]
to select the desired phone number, then
press [
].
page 34
• You are trying to redial a TEL line call, but the unit is not set
to make TEL calls.
→ Make
sure the "Line Selection" setting is set to "IP +
TEL".
page 25
• The
"Operation Mode" setting is not the same as when the
original call was made. (For example, you are trying to redial
an IP call made in IP-PBX mode, but the unit is now in peer to
peer mode.)
→ Change the setting.
page 28
I cannot make long
distance calls.
• Your telephone service does not allow you to make long
distance calls.
→ Make sure that you have subscribed to your telephone
company's long distance service.
—
• If the unit is connected to a PBX, your extension may not be
configured to make long distance phone calls.
→ Contact the PBX administrator.
—
The unit does not ring
when a call is received.
• The ringer is turned off.
→ Press [
] while a call is being received, or change the
ringer volume setting.
page 36
Sound Quality
Issue Possible Cause & Solution Reference
The other party cannot
hear my voice.
• The unit is muted.
→ If "Mute" is displayed, press [ ] to turn off the mute
feature.
page 37
• Objects are obstructing the microphone.
→ Do not obstruct the unit or an External Wired MIC during
calls. Keep your hands, as well as common objects such
as folders, cups, and coffee pots away from the unit and
the External Wired MIC during calls.
—
Document Version 2010/02 Operating Instructions 67
Troubleshooting