Cortelco 879015-TP2-27S - Manual (Page 22)

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PROBLEMS CHECK
No dial tone Is the line cord disconnected from the wall jack or
telephone?
Is jack improperly wired?
Phone does not work Are all cords connected properly?
Phone does not ring Ringer Switch may be set to OFF?
Slide switch to ON position.
Cannot dial Check the Tone/Pulse Switch setting. You may only
have PULSE service.
Switch the Tone/Pulse switch to PULSE position
Other party cannot hear you Ensure Handset cord is connected properly.
Display showing erroneous figures
OR
Display is corrupt or does not work as intended Setup the phone by pressing the Menu Button and then
the Redial Button. After that, reset the Language, Long
Distance Code, and Area Code.
OR
Your phone must be reset by uninstalling all batteries or
unplugging the AC adaptor. Wait for 5 minutes before
reinstalling the batteries or plugging the AC Adaptor.
This will also clear all memories.
The display is faded
(Numbers are hard to see) Is the AC adapter connected?
If batteries are used, are the batteries fresh? Change all
3 batteries. (Replace all 3 batteries at the same time.)
Cannot store numbers into memory Is the AC adapter connected OR batteries installed
correctly?
Caller ID does not work Make sure the Caller ID service is active.
- The phone is connected to a working wall jack.
- All line cord connections are correct and secure.
- Your answering machine is set to answer after at least
2 rings and you only pick up the phone after 2 rings.
The Caller ID display is blank Press either Up or Down button to see if "-NO CALLS-"
appears.
Is the AC adapter connected OR batteries installed
properly?
Check if you have received the first Caller ID record.