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12. Troubleshooting Guide
While Using
Check the following:
1. Cannot make a call (there is no dial tone).
Æ Check the phone installation. Also check the connection between the
Gatekeeper and the Phone.
2. Cannot make a call (there is a dial tone but no ringing).
Æ Check the connection to the Gatekeeper or contact the administrator.
3. Cannot make a call (no response).
Æ Contact the administrator.
4. Can hear through the handset but cannot hear through the speaker phone.
Æ Check if the headset adapter is plugged in.
5. Phone not ringing when there is an incoming call.
Æ Check if DND(Do Not Disturb) is enabled. You will see a smile icon on the LCD screen.
6. Set time server and offset, but time not displayed correctly.
Æ Check the network mode.
If set to DHCP mode, the time server IP address and its offset won’t be reflected.
Note: If you keep having problems, contact your administrator.
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