Butler 3900/Twin/Triple/Quattro
7.12 WARNING TONE BEEP
When one handset is on line, it emits the warning tone beep every 20 seconds if the batteries are low or when the handset is out of range.
7.13 CALLER IDENTIFICATION
Caller identification is only available if you have subscribed to this service with your telephone operator.
When you receive an external call, the caller’s number will appear on the display as the telephone rings.
If the caller’s number is already recorded in the phone book, the caller is identified by his or her name recorded in the phone book instead.
The telephone does not show the name sent by the operator.
If the call is not answered for 3 seconds, the sum of unanswered calls will be displayed and CLI icon 
? of the handset appears.
The handset indicator LED and base CID LED 
? blinks till all missed calls are read.
7.13.1 List of calls
Your telephone keeps a list of the last 20 calls received in memory. This function is available only if you are subscribed to the caller ID information. The correspondents that have called are identified by their telephone number or name in the same way as in caller identification. The presence of new / unanswered calls is indicated by the flashing of CLI LED 
? of the base and Handset indicator LED. To consult the list of calls:
1. Press and hold 
? key for 2 seconds or choose menu Call Log. If there are no calls in
the list, ‘NO CALL’ will appear. |
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2. Scroll through the calls by using up | or down | arrows. The caller’s name will be |
shown before the telephone number if the name is stored in the phonebook. If this call is unanswered or this call record is not read, CID icon 
? is shown.
Note: if the caller’s name is longer than 9 characters or the telephone number is longer
than 9 digits, press down | arrow to see the complete name or number. |
4.Press down 
again to see the time and date when the call is received**
5.Press 
to add this entry in the phonebook when the telephone number is on display if it’s not already stored:
•‘STORE ?’ will appear, press INT
to confirm. Enter the name and press INT
to confirm. Enter the telephone number and press INT
to confirm. Select the melody which will be heard when this number is calling using up/down keys and press INT
to confirm. The entry will be stored in the phonebook.
6.To call back a correspondent, simply press the key 
when their telephone number or name is displayed.
**Only when the network send the time/date together with the telephone number!!! On networks with caller ID in DTMF, no time and date will be displayed.
14 | Butler 3900/Twin/Triple/Quattro |