Making and Receiving Calls
Issue Possible Cause & Solution Reference
I cannot make IP calls.
• The IP line is not selected.
→ Before dialling, confirm that
"IP" is shown in the
upper-right corner of the display. Press the centre function
button ([F2]) to change the line if necessary.
page 32
• The IP address was entered incorrectly.
→ Confirm
that you have entered the IP address of the other
party correctly.
page 33
• The "Operation Mode" setting is not correct.
→ Change the setting to "Peer to Peer" if you want to
make or receive peer to peer IP calls (i.e., calls made by
specifying the called party's IP address).
→ Change the setting to "IP-PBX" if you want to make or
receive intercom and outside calls as a SIP extension of
the connected PBX.
→ When the setting is "USB Audio", you cannot make or
receive IP calls. Change the setting to "Peer to Peer"
or "IP-PBX".
page 28
• Consult your system administrator.
—
I cannot make TEL calls.
• The TEL line is not selected.
→ Before dialling, confirm that
"TEL" is shown in the
upper-right corner of the display. Press the centre function
button ([F2]) to change the line if necessary.
page 32
• 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 is set to "USB Audio".
→ When the operation mode is set to "USB Audio", you
cannot make or receive IP, TEL, PS or PC calls. Change
the setting to "Peer to Peer" or "IP-PBX".
page 28
• The dial mode setting is incorrect.
→ Make sure that the dial mode matches the type of
telephone service you have (i.e., tone or pulse).
page 25
I cannot receive IP calls.
• The "Operation Mode" setting is not correct.
→ Change the setting to "Peer to Peer" if you want to
make or receive peer to peer IP calls (i.e., calls made by
specifying the called party's IP address).
→ Change the setting to "IP-PBX" if you want to make or
receive intercom and outside calls as a SIP extension of
the connected PBX.
→ When the setting is "USB Audio", you cannot make or
receive IP calls. Change the setting to "Peer to Peer"
or "IP-PBX".
page 28
Document Version 2010/02 Operating Instructions 65
Troubleshooting
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