Each extension can be assigned a personal identification number (PIN) through system programming (

Extension Personal Identification Number (PIN) [005]) or personal programming (Extension PIN [Personal Identification Number]). This PIN is used to set features or access the extension remotely.
The following features require a valid PIN:

a)	Live Call Screening (LCS) ( 1.21.2 Voice Mail DPT (Digital) Integration)
b)	Incoming and Outgoing Call Log Display Lock ( 1.16.2 Incoming Call Log), Personal Speed Dialing Display Lock ( 1.6.1.4 Speed Dialing–Personal/System)
c)	Walking Extension ( 1.24.3 Walking Extension)
d)	Extension Lock ( 1.8.2 Extension Lock)
e)	Remote Extension Control ( 1.24.5 Remote Extension Control by User) and Walking COS ( 1.8.4 Walking COS)
f)	Remote Extension Control and Walking COS using Direct Inward System Access (DISA) ( 1.15.6 Direct Inward System Access (DISA))

WARNING
When a third party discovers the personal identification number (PIN) (verified code PIN/extension PIN) of the PBX, there will be a risk that they will make fraudulent phone calls using the telephone line, and the cost will be charged to your own account. In order to avoid this problem, we strongly recommend the following points:

a)	Carefully maintain the secrecy of the PIN.
b)	Specify a complicated PIN as long and random as you can make it.
c)	Change the PIN frequently.

•	Extension PIN Lock If the extension PIN is entered incorrectly three times, the line will be disconnected. If an incorrect PIN is entered a preprogrammed number of times, the PIN will be locked. Only an extension assigned as a manager can unlock a PIN, after which it will be reset. This feature is also known as Station Password Lock.
•	Remote Extension PIN Clear If an extension user forgets his or her PIN, a manager can clear (reset) the PIN, and the extension user can assign a new PIN.
•	Extension PIN Display It is possible to select whether to show the extension PIN on the display through system programming. By default, it is shown as dots.

User Manual

Extension users can clear the following features set on their own telephone all at once:

Features

After Setting

Absent Message

Off

BGM

Off

FWD*/DND*

Off

Call Pickup Deny

Allow

Call Waiting*

Enable (Call Waiting tone)

Data Line Security

Off

Executive Busy Override Deny

Allow

Log-in/Log-out

Log-in

Message Waiting

All messages left by other extensions will be cleared.

Paging Deny

Allow

Paralleled Telephone

Paired SLT will ring.

Hot Line*

Off

Timed Reminder

Cleared

These features can be programmed to not be canceled by Extension Feature Clear.

This feature is also known as Station Program Clear.

•	Extension Lock ( 1.8.2 Extension Lock) and the extension personal identification number (PIN) ( 1.24.1 Extension Personal Identification Number (PIN)) will not be cleared by this feature.
•	If dial tone 2 is heard after Extension Feature Clear: After performing Extension Feature Clear, Call Waiting will be enabled if "`Extension Clear: Call Waiting`" is set to "`Clear`" through system programming. In this case, dial tone 2 will be heard when going off-hook. ( 1.25.1 Dial Tone)

User Manual

1.7.12 Extension Feature Clear

It is possible for an extension user to trade extension settings with another extension.
When Walking Extension is executed, all extension settings (extension number, Class of Service (COS), One-touch Dialing memory, etc.) of the "old" extension are exchanged with the "new" extension.
This feature is useful when an extension user moves desks, or when an extension user has no permanent desk.

This feature is also known as Walking Station.

•	This feature is available by switching the telephone between proprietary telephone (PT) and PT, single line telephone (SLT) and SLT, PT and SLT. Moving across the tenants is also possible.
•	Incoming calls to your extension will reach you at your new location.
•	An extension personal identification number (PIN) is required to use this feature. ( 1.24.1 Extension Personal Identification Number (PIN))
•	If a DSS Console is connected to a PT and the DSS Console is continuously used with the PT after the Walking Extension has been performed, the new extension number of the PT must be assigned as the paired extension through system programming ( Console Paired Telephone [007]).

User Manual

1.10.1 Walking Extension

Each extension user can set an alarm to be used as a wake-up call or reminder. This feature can be programmed to activate daily or once only. If the user goes off-hook during the alarm, a special dial tone will be heard. If a voice message is used, a prerecorded voice message will be heard.

•	Be sure that the PBX clock is set to the correct time.
•	Setting a new alarm time clears the previous alarm time.
•	Programmable Time The Alarm Ringing time, the number of alarm repeat times, and Interval time are programmable through system programming.
•	To use the voice message feature: An MSG card is required and a message must be recorded. An extension assigned as a manager can record messages. ( 1.15.5 Outgoing Message (OGM)) A different message can be assigned for each time mode ( 2.2.4 Time Service).

Installation Manual

2.6.4 MSG4 Card

User Manual

1.7.1 Timed Reminder

Extension users can remotely change the feature settings, such as Call Forwarding (FWD), and time service mode for their own extensions from inside or outside the PBX using Direct Inward System Access (DISA) (

1.15.6 Direct Inward System Access (DISA)). This feature can be used only on the extensions which, through Class of Service (COS) programming are allowed to be controlled remotely.

The following feature settings can be changed:

a)	FWD/Do Not Disturb (DND) ( 1.3.1 Call Forwarding (FWD)/Do Not Disturb (DND))
b)	Log-in/Log-out ( 1.2.2.6 Log-in/Log-out)
c)	Absent Message ( 1.17.2 Absent Message)
d)	Extension Lock ( 1.8.2 Extension Lock)
e)	Time Service Switching Mode ( 2.2.4 Time Service)

This feature is also known as Remote Station Control by User.

•	Extension PIN An extension personal identification number (PIN) ( Extension Personal Identification Number (PIN) [005]) is required to use this feature. ( 1.24.1 Extension Personal Identification Number (PIN)) If the PIN is entered incorrectly three times, the line will be disconnected.
•	Internal Call Block ( 1.1.2.2 Internal Call Block) also determines which extensions can perform remote operations on which extensions, i.e., if extension 101 cannot call extension 201, then it cannot remotely operate extension 201 either.