Icon flashes, You hear the busy tone when you press, No caller display number/name displayed – BT GRAPHITE 2100 User Manual
Page 32: Cannot register a handset to a base, Base unit does not ring, but the lights are on

32
If you experience any problems, please call the Helpline on Freephone 0808 100 6556* or visit www.bt.com/producthelp
icon flashes
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Is the handset registered correctly to the base, see page 29.
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Check that the mains power is correctly connected.
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Check that the handset is within range of the base.
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The batteries are low, place the handset on the base/charger to recharge.
You hear the busy tone when you press .
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Make sure the handset is in range of the base.
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Another handset registered to your BT Graphite 2100 base may be on the line.
No Caller Display number/name displayed
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Have you subscribed to a Caller Display service from your network provider, see page 23.
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The caller may have withheld their number.
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An exact name/number match was not found in your directory. Check that you have stored the
full STD dialling code.
Cannot register a handset to a base
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You can register a total of up to 5 handsets to your BT Graphite 2100 base. Check that you have
not exceeded the limit.
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Check that you have entered the correct PIN number (default PIN 0000).
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Check that you are at least one metre away from other electrical equipment to avoid interference
when registering.
Base unit does not ring, but the lights are on
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Have you connected the telephone line correctly?
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Is the base ringer set to off?
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You may have a faulty line or socket. Try using another socket or line. Call BT on 151 if you still
experience problems.