The following dial tones inform extension users about features activated on their extensions:
Each dial tone type has two frequencies, such as dial tone 1A and dial tone 1B.

Type

Description

Tone 1A/1B

A normal dial tone is heard when:

a)	No features listed for dial tones 2 through 4 has been set, or
b)	Automatic Route Selection (ARS) is used.

Tone 2A/2B

Heard when any one of the following features is set.

•	Absent Message
•	BGM
•	Call Forwarding (FWD)
•	Call Pickup Deny
•	Call Waiting
•	Do Not Disturb (DND)
•	Extension Lock
•	Executive Busy Override Deny
•	Hot Line
•	Timed Reminder

Tone 3A/3B

Heard while a called PS is being searched, or when any one of the following features is performed.

•	Account Code Entry
•	Consultation Hold
•	Answering a Timed Reminder call with no message

Tone 4A/4B

Heard when messages are waiting for the extension.

•	Dial Tone Type A/B Through system programming, it is possible to select dial tone type A or B for dial tones 1 through 4. If "`Type A`" is selected, all dial tones 1 through 4 will become dial tone type A. The dial tone type for ARS feature can be selected separately. If "`Type A`" is selected for ARS, dial tone 1A will be heard. If "`Type B`" is selected, dial tone 1B will be heard.
•	Distinctive Dial tone Distinctive dial tone mode can be disabled. In this case, dial tone 1 will be heard.
•	Dial Tone Patterns All dial tone patterns have a default ( 5.2.1 Tones/Ring Tones).
•	Only dial tone 1 is sent to the extensions in a VM (DPT/DTMF) group. ( 1.21.1 Voice Mail (VM) Group)

At the end of feature operations, the PBX confirms the success of the operation by sending a confirmation tone to extension users.

Type

Description

Tone 1

a)	Sent when the setting is accepted.
b)	Sent when a call is received in voice-calling mode (Alternate Receiving–Ring/Voice). The caller's voice will be heard after the tone.

Tone 2

a)	Sent from an external paging device or an extension before being paged.
b)	Sent when a call is received while an extension is in Hands-free Answerback mode.

Tone 3-1

Sent before a conversation is established using the Paging feature.

Sent to the caller when a conversation is established with an extension in one of the following modes:

•	Hands-free Answerback mode
•	Voice-calling mode (Alternate Receiving–Ring/Voice)

Tone 3-2

Sent before a conversation is established when accessing the following features by their feature numbers:

•	Call Park Retrieve
•	Call Pickup
•	Hold Retrieve
•	Paging Answer
•	Trunk Answer From Any Station (TAFAS)

Tone 4-1

Sent when a call changes from a two-party call to a three-party call. (For example, Executive Busy Override, Conference, Privacy Release, Two-way Record.)

Tone 4-2

Sent when a call changes from a three-party call to a two-party call. (For example, Executive Busy Override, Conference, Privacy Release, Two-way Record.)

Tone 5

Sent when a call is placed on hold (including a consultation hold).

•	Confirmation Tone Patterns All confirmation tone patterns have a default ( 5.2.1 Tones/Ring Tones).
•	It is possible to eliminate each tone.