Panasonic DBS 576 Technical Manual

							Section 700 - Operation Chapter 5. Key Telephone Features
576-50-700 DBS 576 (USA) issued September 2001 5-57
calling, you can make a voice call to another extension by entering the Tone-Voice Call feature access 
code.
Operation
To make a call using Intercom Calling:
Hardware Requirements
•N/A
Related Programming
• FF1-0-03: Extension COS (Intercom Calling Type)
• FF1-0-03: Extension COS (Voice Call Send)
• FF1-0-03: Extension COS (Voice Call Receive)
• FF3: Extension COS
Considerations
• The Handsfree Answerback feature can be used to respond to only voice calls from other 
extensions - not tone calls.
• Both the called and calling parties must belong to an Extension COS that allows Voice Calling.
Last Number Redial
Description
Last Number Redial allows you to automatically redial the last number dialed by pressing the 
REDIAL key.Action Result
1.   Lift the handset or press the ON/OFF key. Intercom dial tone
2.   Dial the extension number.
3.   If your extension is set for tone calling and you want to 
make a voice call, enter 1.
OR...
If your extension is set for voice call and you want to make 
a tone call, enter 1.•   Dialed number displays
•   EXT LED lights
4.   Speak when your call is answered.
5.   Replace the handset or press the ON/OFF key.  EXT LED goes off 
						

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Chapter 5. Key Telephone Features Section 700 - Operation
Operation
To automatically redial the last number dialed:
Hardware Requirements
•N/A
Related Programming
• FF1-0-03: Extension COS (Intercom Redialing)
• FF3: Extension COS
Considerations
• Extension Class of Service (COS) determines whether Last Number Redial can be used for both 
intercom and CO calls or CO calls only.
Line Appearances
Description
The System provides three types of line appearances
• Direct Station Select (DSS) / Busy Lamp Field (BLF) Appearances
• Direct Line (DL) Appearances
• MCO Line Appearance
DSS/BLF Appearances
When a DSS/BLF key is programmed, it automatically provides one-touch dialing and DSS and BLF 
for the assigned extension numbers. If desired, the DSS/BLF key can also provide ring or delayed ring 
monitor. For example, you can set extension A as a DSS/BLF ringing key on extension B. When 
extension A rings, the LED of the DSS/BLF key on extension B flashes and the phone rings.
Ringing or delayed ringing can be set on extensions which have a BLF key. The LED of the DSS/BLF 
key flashes green
 during ringing and the display shows the BLF extension number.
When extension A is in use, the LED of the DSS/BLF key on extension B lights red. If one extension 
has the Call Forwarding or Do-Not-Disturb (DND) feature activated, the DSS/BLF key lights green.Action Result
1.   Lift the handset or press the ON/OFF key.
OR...
Press a vacant CO key or enter a trunk access code.•   Outside dial tone
•   CO XXX displays (where XXX = trunk 
number)
2.   Press the REDIAL key. Last number dialed displays
3.   Complete the call and replace the handset or press the ON/
OFF key.Line key LED turns red, then goes off. 
						

							Section 700 - Operation Chapter 5. Key Telephone Features
576-50-700 DBS 576 (USA) issued September 2001 5-59
Four DSS/BLF modes are available as follows:
Operation
To assign a DSS/BLF key:
To make an intercom call using the DSS/BLF key:
To pick up a call on a DSS/BLF key:
Hardware Requirements
•N/A DSS/BLF TypeFF Key 
EntryBLF LED 
IndicationExtension 
CallCall 
PickupRing 
(Immed.)Ring 
(Delayed)Voice 
Mail 
Tr a n s f e r
DSS Only (No 
Pick Up/No Ring)(9 + Ext #) Yes Yes No No No Yes
DSS/BLF 
Immediate Ring( 8 1  +  E x t  # ) Ye s Ye s Ye s Ye s   N o Ye s
DSS/BLF Delayed 
Ring ( 8 2  +  E x t  # ) Ye s Ye s Ye s N o Ye s Ye s
DSS/BLF No Ring( 8 3  +  E x t  # ) Ye s Ye s Ye s N o N o Ye s
Action Result
1.   Press the PROG key.
2.   Press the FF key to be assigned the DSS/BLF appearance.
3.   Press the Redial key.
4.   Enter the code for the desired DSS/BLF mode as follows:
9+ Ext # ---- DSS Mode Only
81+ Ext # --- DSS/BLF Immediate Ring
82 + Ext # -- DSS/BLF Delayed Ring
83 + Ext # -- DSS/BLF No Ring
5.   Press the HOLD key.
Action Result
1.   Press the flashing DSS/BLF key.
Action Result
1.   Go off-hook or press the flashing DSS/BLF key. 
						

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Chapter 5. Key Telephone Features Section 700 - Operation
Related Programming
• FF1-0-02: BLF Call Pickup
• FF4-0-04: FF Key Assignment
Considerations
• If several calls arrive at a DSS/BLF key, the calls are queued and ring on a first-in, first-out basis.
• If a BLF key has a second call while busy and off- hook signaling is enabled, the BLF key starts 
blinking. The call can be answered by pressing the BLF key or going on hook and then off hook.
Direct Line Appearances
Direct Line (DL) keys are used to originate and receive calls over specific trunk numbers (DL keys 
can be assigned to any trunk number).
The LED for a DL key will flash red on an incoming call even if the CO line is set to ring. If another 
extension answers the call, the LED on the telephone will light solid red.
Operation
Hardware Requirements
•N/A
Related Programming
• FF4: Key Assignment
Considerations
•N/A
Multi-CO (MCO) Appearances
Description
You can make and receive CO line calls using a Multi-CO (MCO) key. Each extension can have up to 
5 MCO keys. 
An MCO key can be assigned to any of the pooled trunk groups. Pressing the MCO key is the same as 
dialing the MCO Access Code (usually 9, 81-84). Operation Action
To originate a trunk call... 1.   Press an idle DL key.
2.   The key blinks green as the call is made.
To place a call on Exclusive Trunk Hold (page 133)... 1.   Press the DL key.
To place a call on System Trunk Hold (page 133)... 1.   Press the HOLD key.
To transfer a call... 1.   Press the HOLD key.
2.   Dial the destination extension.
3.   Press the PROG key. 
						

							Section 700 - Operation Chapter 5. Key Telephone Features
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Operation
Related Programming
• FF1-0-02: ARS for MCO Access Code 1/Route Advance for MCO Access Code
• FF1-3: MCO Group
• FF5-2: MCO Outgoing Trunk Assignments
• FF5-3: MCO Incoming Trunk Assignments
• FF4: FF Key Assignments
Considerations
• Press the MCO key that flashes red to answer an outside call.
• If you are already on a call appearing on an MCO key and you press another MCO key, a line on 
the other MCO key is selected and the first call is dropped.
• If a CO key is assigned, the CO Key LED will light when that specific trunk is used instead of 
the MCO key LED.
• There are five groups of outside lines: 9 and 81-84 (default). 
• MCO keys cannot be assigned on the DSS/72 or the EM/24.
• An MCO key must be assigned in programming mode. The MCO key cannot be assigned by the 
end user with FF key assignments.Operation Action
To originate a trunk call 1.   Press an idle MCO key.
The key blinks (green) as the call is made.
To receive a call on an MCO key. 1.   If ringing line preference is enabled, go off-
hook.
If ringing line preference is not enabled, go 
off-hook and press the MCO key with the 
green flashing LED.
The LED lights solid green.
To place a call on Exclusive Trunk Hold 1.   Press the MCO key. 
The key flashes green while the call is held.
To place a call on System Trunk Hold 1.   Press the HOLD key.
The key flashes green while the call is held.
To transfer a call 1.   Press the HOLD key.
2.   Dial the destination extension.
3.   Press the PROG key (if on-hook transfer is 
off) or go on-hook. 
						

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Chapter 5. Key Telephone Features Section 700 - Operation
Message Key
Description
The System supports the MSG key on the VB-44225 large-display phone. This key provides the 
following functionality:
•Message Wait Callback: If a callback message has been left by another extension, you can 
press the MSG key to place an automatic callback to that extension. If more than one callback 
message has been received, pressing the MSG key performs auto-callback in the order 
received.
•Priority Message Wait Callback (One-Touch Voice Mail Access): You can press the 
MSG key to automatically access your voice mailbox. The phone will dial your voice 
mailbox and send access codes (if programmed) for retrieving new messages.
Operation
To automatically call back an extension that left a message or to access Voice Mail:
Hardware Requirements
•N/A
Related Programming
• FF8-1: Voice Mail ID Code
Considerations
•The Message lamp lights when a message has been received.
• If more than one callback message has been received, pressing the MSG key performs auto-
callback in the order received.
•The MSG key works only when the phone is idle or receiving internal dial tone.
• Auto-callback is always enabled for large display phones.
• Messages are accessed in a first-in, first-out order for Message Wait, except Priority Message 
Wait, which is typically sent by Voice Mail.
Message Waiting/Callback
Description
If you try to call an extension that is busy or does not answer, you can leave a message wait indication 
at that extension, requesting a return call.Action Result
1.   Press the MSG key. Automatically call back to extension
OR...
Automatic access to Voice Mail 
						

							Section 700 - Operation Chapter 5. Key Telephone Features
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Operation
To leave a message waiting indication:
To answer a message waiting indication (callback):
To cancel a callback message:
Note:Message waiting/callback messages may also be cancelled by either the originator or the 
receiver by calling the other party.
Hardware Requirements
•N/A
Related Programming
• FF1-0-03: Extension COS (Message Wait set/cancel)
• FF1-0-03: Extension COS (Priority Message Wait set/cancel)Action Result
1.   Lift the handset or press the ON/OFF key. Intercom dial tone
2.   Dial the extension number.
3.   While the phone is still ringing, or when you hear the busy 
tone, enter the Message Wait Set code (default = 4).MSG Accepted displays
4.   Replace the handset or press the ON/OFF key. •   Message lamp flashes at called exten-
sion
•   MSG EXT XXX displays (where XXX 
= calling extension number) or name 
of calling extension displays at called 
extension
Action Result
1.   Lift the handset or press the ON/OFF key. Intercom dial tone
2.   Enter the Message Wait Callback code (default = *6) or 
press the MSG key if using a large-display phone.
OR...
Press the Flexible Function (FF) Key assigned as a Message 
Callback Key.•   Telephone automatically dials exten-
sion that sent the message waiting indi-
cation
•   Message lamp goes off when your call 
is answered
Action Result
1.   Lift the handset or press the ON/OFF key. Intercom dial tone
2.   Enter the Callback Request Cancel code (default = *5) or 
press the MSG key if using a large-display phone.MSG Cleared displays
3.   Replace the handset or press the ON/OFF key.Message lamp goes off 
						

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Chapter 5. Key Telephone Features Section 700 - Operation
• FF1-2: Dial Plan
• FF3: Extension COS
Considerations
• The System has priority message waiting for 3rd-party Voice Mail. See “Voice Mail” on page 3-
60. 
Mute Function
Description
Mute Function allows you to block outgoing audio to the other party while on a call.
With 44-Series phones, audio can be blocked through both the microphone and the handset. (For 
handset mute, an FF key must first be assigned as a MUTE key.)
Operation
To block outgoing audio using the Handset Mute (44-Series phones only):
To block outgoing audio using the Microphone Mute:
Hardware Requirements
•N/A
Related Programming
• FF4: Key Assignment
Considerations
The fixed MUTE key works both for handset mute and microphone mute. But only 44-Series phones 
have the fixed MUTE key, so others must assign an FF key as a MUTE key.Action Result
1.   During a handset call, press the MUTE key. Outgoing audio is blocked through 
phone’s handset
2.   To turn Mute off, press the MUTE key again.
Action Result
1.   During a handset call, press the MUTE FF key Outgoing audio is blocked through 
phone’s microphone
2.   To turn Mute off, press the MUTE FF key again. 
						

							Section 700 - Operation Chapter 5. Key Telephone Features
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Offhook Monitor 
Description
Offhook Monitor lets you put a call on speaker while the handset is offhook. You can still 
communicate with the other party via the handset, but you will also be able to hear the other party on 
the phone’s speaker. The other party can only hear what is transmitted through your handset however, 
because audio is not transmitted through your microphone.
Operation
To put a call on speaker using the Offhook Monitor:
Hardware Requirements
•N/A
Related Programming
• FF1-0-01: Offhook Monitor
Considerations
• Offhook Monitor is available on 44-Series phones only.
• Offhook Monitor can be disabled system-wide.
Offhook Signaling
Description
Offhook Signaling sends a tone to a busy extension to indicate that another CO call has arrived or a 
call is camped-on.Action Result
1.   During a handset call, press the ON/OFF key. •   Other party is audible through speaker 
and handset
•   Phone’s microphone is mute 
2.   To take a caller off speaker (disable Offhook Monitor) but 
continue the call via the handset, press the ON/OFF key. 
						

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Chapter 5. Key Telephone Features Section 700 - Operation
Operation
After receiving an offhook signal during a call:
Note:For details about handling multiple calls, see “Call Hold” on page 5-19.
Hardware Requirements
•N/A
Related Programming
• FF3: CO Off-Hook Signal.
Considerations
• The CO call type may be multiple ring, direct, BLF Ring, or camp-on.
• The System does not send the offhook signal under the following conditions:
•   During a conference call
•   During an OHVA or Busy override
•   Data Privacy is enabled
•   the receiving telephone is a 3rd party voice mail.
Offhook Voice Announce
Description
You can interrupt a busy extension when making an Intercom Call, and then use the Off-Hook Voice 
Announce (OHVA) feature to make an announcement that only the called party can hear. You can 
also transfer a held call to a busy extension after making the announcement using this feature. The 
called party may optionally reply to (answer) an OHVA call.
Beginning with CPC Version 2.0, the busy party can reply to an offhook announcement with a text 
message that displays on the announcing phone. Any one of the following messages can be selected. 
Messages 6 to 9 and 0 have no default message text. All the messages can be changed through system 
programming. (see “Set Text Message Replies” on page 4-37 for more information on setting Text 
Message Replies).
Beginning with Version 3.5, the calling party can activate the OHVA feature even when the second 
and/or third DN key is available. Depending on how this feature has been programmed, the calling 
party hears one of three different tones. Ring-Back Tone or Special Tone is heard when a call is 
placed to a “non-Voice Mail assigned” extension. When a call is placed to a “Voice Mail assigned” 
number, Ring-Back Tone or Busy Tone may be heard.Action Result
1.   Press the HOLD key. First call on hold
2.   Press the flashing FF key for the CO line of the incoming 
call.