User's Manual

28 QCT-7000/QCT-7200 Network Interface Unit User’s Guide
TROUBLESHOOTING
PROBLEM SOLUTION
No dial tone • Verify that the telephone is plugged into the NIU.
• Verify that the antenna is connected and not
cross-threaded.
• Verify that the power cables are properly
connected.
• Verify that the NIU is receiving a sufficiently
strong signal from the service provider. Dial
#91951#, listen for a two-beep confirmation tone,
and adjust the position of the antenna or NIU to
maximize the beep rate. If this is unsuccessful,
see the solution for “no tone generated.”
• If none of these solutions solve the problem,
contact your service provider.
No tone
generated when
checking signal
strength
• Dial #91951# and listen for a two-beep
confirmation tone, which indicates that the
telephone has entered signal verification mode.
• Try repositioning the NIU. Locations near an
external window, upstairs, and away from large
metal barriers (such as a cabinet or refrigerator)
are best.
Dialed telephone
number does not
connect
• Check the dialed number again for misdialed or
incorrect digits.
• If there is a rejection tone, the call type is
restricted.
• If there is a busy tone, the network system may be
busy. Wait a few minutes and dial again.
• If the above solutions do not work, try connecting
a different model tone-dial telephone to your NIU.