Instruction manual

Possible Cause 2: Local phone company does not send hold release signal.
What to do: Call your local phone company and find out whether they send a hold release
signal.
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If the local phone company does not send a hold release signal, or if they do but the
problem still occurs, call the AT&T Helpline.*
Calls on Hold Are Disconnected
Possible Cause: Hold Disconnect Time is programmed incorrectly—too short.
What to do: Change the
Hold Disconnect Time (#203) from “Short” to “Long.”
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If calls on hold no longer disconnect, the problem is solved.
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If calls on hold still get disconnected, or the Hold Disconnect Time was already set to
“Long,” call the AT&T Helpline.*
Phone Display Does Not Work
Possible Cause: Date, day, and time do not display properly.
What to do: Re-enter the date, day, and time using
System Date (#101), System Day
(#102),
and System Time (#103).
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If the display is correct, the problem is solved.
If the display is still not correct, follow the procedure for “Other Problems with
Phones.”
Phone Display Does Not
Show Caller ID Name/Number
Possible Cause 1: Not receiving Caller ID service from local phone company.
What to do: Contact local phone company to check on Caller ID service.
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If you are not receiving Caller ID service, subscribe to it.
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If you are receiving Caller ID service, go to Possible Cause 2.
Possible Cause 2: Wrong 206 and/or 400 module installed in the control unit.
What to do: Make sure lines with Caller ID service are connected to 206EC or 400EC
modules.
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If Caller ID lines are not connected to 206EC or 400EC modules, install the
appropriate modules and/or make the appropriate connections.
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If Caller ID lines are connected to 206EC or 400EC modules, call the AT&T Helpline.*
*
In the continental U.S., help is available at 1 800 628-2888. Outside the continental U.S., call your local
AT&T Authorized Dealer.
6-8 Troubleshooting