AT&T ATTTL92273 user manual Alert tones, Handset alert tones, Telephone base alert tones

Appendix

Alert tones

Handset alert tones

One short beep	Tone of each key press, if key tone is turned on.
One long beep	Indication to begin recording a message, memo or
	announcement.
Two short beeps	You are pressing CID or DIR when the volume is already at its
	highest or lowest setting.
	-OR-
	You have reached the end of the caller ID history.
	-OR-
	Call waiting tone.
	-OR-
	Error tone.
Confirmation tone	The telephone has completed the command successfully.
(Three rising tones)
Four beeps	The other party has ended your intercom call.
	-OR-
	Out of range while the handset is on a call.
Four short beeps	Low battery warning.
Four rising tones	Your Android cell phone has received mobile notification.

Telephone base alert tones

One long beep	Indicates the start of message recording during call screening
	or the end of a message playback session.
Beeps once every 10 seconds	Message alert.
Two short beeps	Registration slots are full.
Four short beeps	Registration failure.

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