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My device connected to the PC Port lost its network connection
The phone does not power up
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Figure 11.5 Registered Phone
Figure 11.6 Unregistered Phone
The phone does not have a dial tone
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P O W E R
The PC port connection on your phone may not be enabled, or there may be
problems with the device's network connection settings. Your system administrator
will need to check the settings for the phone.
Any devices connected to the PC Port of the phone will momentarily disconnect from
the network if the phone reboots or if the phone looses power. If your phone is
rebooting, the device can reconnect after the phone has finished rebooting. If your
phone has lost power, the device will not be able to reconnect to the network until
power is restored to the phone.
P O W E R
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Check that the network connector is firmly plugged in to both the phone and the network
jack.
If possible, try plugging your phone into another PoE jack on your network.
The problem may be with the network cord. Try a new network cord.
If you are still having problems with your phone, contact your system administrator.
C A L L I N G
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If your phone has an LCD display, check that your phone is recognized as registered on
the network. Your phone must be registered on the network to make calls.
If you phone is not registered on the network, try plugging your phone into another
open port on the local area network.
If you need an outside access code to get to an outside line, you may not hear the
outside dial tone until you press the outside access code.
Verify that the phone is receiving power.
Press the Menu key, then go to
phone has an IP address, Subnet Mask, Default Gateway, and DNS Server listed. If any of
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Status,
Network Information and verify that the
DT900/DT900S Series Phone User Guide
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Troubleshooting
