Panasonic KX-TD816AL Installation Manual page 366

5.1 Tone / Ring Tone
<TONE>
15 sec
Hold Alarm
Call Waiting Tone 1
(CO/intercom)
5 sec
Call Waiting Tone 2
(intercom)
Call Waiting Tone 2
(CO)
<RING TONE>
1 sec
Intercom Calls /
Intercom Hold Recall
CO Calls /
CO Hold Recall
Doorphone Calls /
Timed Reminder
Callback Ringing
(Camp-on Recall)
List 5-3