NEC Infoset 408 System Manual

InfoSet 408Issue 1A
System Manual3 - 21 
A telephone cannot be used to initiate a barge-in if it is part of a conference.
A barge-in cannot be completed if the telephone that is the target of the barge-in is
part of a conference.
If all of the conference circuits in the system are in use, no barge-in is allowed.
Barge-in requires the use of a conference circuit. 

Issue 1AInfoSet 408
3 - 22Features
Battery Backup – System Memory
A battery is provided on the central processing unit (CPU) in the KSU.  This battery
retains system memory if the power fails.  When fully charged, a new lithium battery
maintains backup power for a minimum two years.  This allows the system to return to
normal operation once power is restored.  
Feature Operation 
Special Conditions

Programming and status condition is retained for the following:
• Background Music
• Call Forward – All...

InfoSet 408Issue 1A
System Manual3 - 23
Battery Backup – System Power (Built-In)
A built-in battery provides complete system operating power for approximately 30
minutes.  This allows the entire telephone system (key system and telephones) to
remain operational during a power outage.  
Feature Operation 
Special Conditions

The backup batteries are charged from the power supply.
Not applicable. 

Issue 1AInfoSet 408
3 - 24Features
Busy Lamp Field - Multiline Telephones
The Busy Lamp Field (BLF) is an LED on the multiline telephone which is used to
indicate the telephone status (idle, in-use, do-not-disturb mode, etc.).
This feature is available for the InfoSet and Electra Elite multiline telephones.
Feature Operation  
Special Conditions

Busy Lamp Field indication is provided for the following conditions:  
If a line key is not assigned as a trunk line, it can be assigned as a Busy Lamp...

InfoSet 408Issue 1A
System Manual3 - 25
Callback Request
This feature is used to leave notification at the called party’s telephone that you have
called.   
This feature is available for InfoSet and Electra Elite multiline telephones (sending
and answering callback request) and single line telephones (sending callback
request).  
The telephone must be set for Dual Tone Multifrequency mode (touchtone) for this
feature to be used.
Feature Operation  
When calling and receiving a busy tone, press      ....

Issue 1AInfoSet 408
3 - 26Features
 
1. Press    
 . 
2. Dial    
      .
3. Press   
 .
Note:When this procedure is performed, do not disturb and all call forward
settings are also cleared.  
When canceling callback request from an attendant position, all callback
requests are cleared system-wide.  
Special Conditions

A telephone user can set callback requests to more than one telephone.  Callback
requests can be sent to other telephone users regardless of the tenant group to which
they belong.
A...

InfoSet 408Issue 1A
System Manual3 - 27
Call Elapsed Timer
This timer appears in the LCD (liquid crystal display) on the telephone.  The timer
keeps track of the amount to time that has elapsed since the call was answered.
When the user hangs up, the timer disappears from the LCD.
This feature is available for the InfoSet and Electra Elite multiline telephones.
Feature Operation  
Special Conditions

The call elapsed timer disappears from the LCD when a call is placed on hold
(exclusive and...

Issue 1AInfoSet 408
3 - 28Features
Call Forward - All Calls
This feature is used to forward calls received at one multiline telephone to another
telephone.  This feature can also be set or cancelled from the telephone where the
calls will be forwarded.  Forwarding can be cancelled for the entire system using a
telephone assigned as an attendant position.
Feature Operation  
1. Press    .
2. Dial    
       (access code).
3. Dial the extension number or telephone number where calls will be forwarded....

InfoSet 408Issue 1A
System Manual3 - 29 
Any telephone in the system can be set to forward all calls to a voice mail port. 
Call Forward – All Calls settings can be individually reset for each telephone by
clearing the setting using    
      	     	   .  
If two internal callers attempt to call one another and they have each other as their
Call Forward – All Calls destination, a busy tone is generated. 
The Call Forward – All Calls setting takes precedence over the Call Forward - Busy/
No Answer...

Issue 1AInfoSet 408
3 - 30Features
Call Forward – Busy/No Answer
This feature is used to forward calls received at one multiline telephone to another
telephone or to an Attendant Position.  This feature can also be set or canceled from
the telephone where the calls will be forwarded.  This feature only applies to internal
calls.
This feature is available for InfoSet and Electra Elite multiline telephones.
Feature Operation 
1. Press    .
2. Dial   
     .
3. Dial the extension number of the telephone...