Panasonic KX-TA624 Technical specifications

KX-TA624
Advanced Hybrid
Telephone System
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Introduction
Welcome to the Panasonic KXTA624, Advanced Hybrid Telephone System.
If you are familiar with our KXT products you will very quickly appreciate how
‘Advanced’ the KXTA system is from its predecessor the KXT7000 Series. The
‘Advanced’ features bring the specification up to date. In particular you should note
these new features when preparing to propose this model to customers:
Modular configuration
To match the customers requirements
To enable the product to be easily upgraded for additional capacity
Caller Id (optional)
To identify the calling party and improve call handling
Voice Mail Integration
To add efficiency to call handling, especially during peak/busy periods
Examine the Panasonic Voice Processing products, KXTVP100E & KXTVP200E
5 Party Conference Call
To improve communication and decision making
Call Logging Printer/PC interface
To enable greater analysis of telephone usage. To enable client billing. To provide
better management information.
Door Phone / Door Opener x 4
Improves security. Allows you to screen visitors.
Day/Lunch/Night Settings
The telephone system can be programmed to operate in three different ways to
provide a different service for normal working hours, lunch time coverage and out of
hours, night service, weekends, bank holidays etc.
For a full description of all the KXTA features and functionality please refer to the
remainder of this document.

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Index
Introduction.............................................................................................................................................2
Index.........................................................................................................................................................3
System Capacities....................................................................................................................................6
System Components................................................................................................................................7
KX-TA624E Central Control Unit .................................................................................... 7
KX-TA62474E Expansion Card ........................................................................................ 7
KX-TA62477E Expansion Card ........................................................................................ 7
KX-TA62491E DISA/OGM/Fax Detection Card .............................................................. 7
KX-TA62493E Caller ID Card.......................................................................................... 7
KX-TA62460E Doorphone / Door Opener Card .............................................................. 7
KX-T30865E Door-phones ............................................................................................... 8
Features ...................................................................................................................................................9
Absent Message..........................................................................................................9
Account Code.............................................................................................................9
Alternate Calling – Ring/Voice..................................................................................9
Voice Call.......................................................................................................................... 9
Tone Call........................................................................................................................... 9
Automatic Callback Busy...........................................................................................9
Automatic Exchange Line Access..............................................................................9
Automatic Route Selection (ARS) ...........................................................................10
Busy Extension Signalling .......................................................................................10
Call Barring ..............................................................................................................10
Call Forwarding........................................................................................................10
Call Park...................................................................................................................10
Call Pickup ...............................................................................................................11
Directed Call Pickup....................................................................................................... 11
Group Call Pickup .......................................................................................................... 11
Call Pickup Deny ............................................................................................................ 11
Call Splitting ............................................................................................................11
Call Transfer.............................................................................................................11
Call Waiting .............................................................................................................11
Conference ...............................................................................................................11
Data Line Security....................................................................................................12
Direct In Line (DIL).................................................................................................12
Direct Inward System Access (DISA) .....................................................................12
Do Not Disturb (DND).............................................................................................12
Door Opener.............................................................................................................12
Doorphone................................................................................................................12
DSS Console ............................................................................................................13
Exchange Line Ringing Selection ............................................................................13
Executive Busy Override .........................................................................................13
Extension Button Confirmation ...............................................................................13
Extension Group.......................................................................................................13
Group Call Pickup .......................................................................................................... 13
Paging Group.................................................................................................................. 13
DISA Ring Group............................................................................................................ 13
UCD Group..................................................................................................................... 13
Extension Hunting....................................................................................................14
Circular hunting.............................................................................................................. 14

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Terminate hunting ........................................................................................................... 14
Extension Lock.........................................................................................................14
External Feature Access ...........................................................................................14
Flexible Buttons .......................................................................................................14
Handsfree Answerback ............................................................................................14
Handsfree Operation ................................................................................................15
Hold..........................................................................................................................15
Exclusive Hold ................................................................................................................ 15
Intercept Routing......................................................................................................15
Language Selection ..................................................................................................15
Limited Call Duration ..............................................................................................15
Line Access Keys .....................................................................................................16
Trunk Group (G-CO) Key ............................................................................................... 16
Single Exchange Line (S-CO) Key .................................................................................. 16
Other Exchange Line (O-CO) Key.................................................................................. 16
Log-In/Log-Out........................................................................................................16
Message Waiting ......................................................................................................16
Music on Hold / Background Music (BGM) ...........................................................16
One-Touch Dialling..................................................................................................17
Operator / Manager Extension .................................................................................17
Operator Call ............................................................................................................17
Outgoing Message (OGM).......................................................................................17
Outside Calling.........................................................................................................18
Automatic Line Access .................................................................................................... 18
Trunk Group Access........................................................................................................ 18
Paging.......................................................................................................................18
All Extensions..................................................................................................................18
Group .............................................................................................................................. 18
External........................................................................................................................... 18
All Extensions & External............................................................................................... 18
Paralleled Telephone Connection.............................................................................18
Personal Speed Dialling ...........................................................................................18
Pickup Dialling.........................................................................................................19
Polarity Reverse Detection.......................................................................................19
Power Failure Transfer.............................................................................................19
Preferred Line Assignment — Incoming .................................................................19
No Line Preference (Manual Answer) ............................................................................ 19
Prime Line Preference .................................................................................................... 19
Ringing Line Preference ................................................................................................. 19
Preferred Line Assignment — Outgoing .................................................................20
Idle Line Preference........................................................................................................ 20
Prime Line Preference .................................................................................................... 20
No Line Preference ......................................................................................................... 20
Recall........................................................................................................................20
Recall Button on a Single Line Telephone...............................................................20
Redial .......................................................................................................................20
Last Number Redial ........................................................................................................ 20
Saved Number Redial...................................................................................................... 20
Ringing Pattern Selection.........................................................................................20
Room Monitor..........................................................................................................21
Secret Dialling..........................................................................................................21
Self-Extension Number Confirmation (KX-T7130 only) ........................................21

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Station Message Detail Recording (SMDR) ............................................................21
System Speed Dialling .............................................................................................21
Timed Reminder.......................................................................................................21
Timed Reminder, Remote (Wake-Up Call)...................................................................... 21
Time (Day/Night/Lunch) Service.............................................................................22
Uniform Call Distribution (UCD) ............................................................................22
Voice Mail Integration .............................................................................................22
Walking Class Of Service ........................................................................................22

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System Capacities
Minimum Maximum
Key-phones 8 16
Single Line Telephones 8 24
Exchange Lines 3 6
Door-phones 0 4
Door Openers 0 4
Paging Ports 1 1
External Music 1 1
Printer 1 1
System Variations
Lines Extensions Caller ID
Cards
DISA/OGM/
Fax Detect
Door Opener
for 4 Doors
Central Control Unit (CCU) 3 8 0 or 1 0 or 1 0 or 1
CCU & 8 Extension Card 3 16 0 or 1 0 or 1 0 or 1
CCU & 3 Line 8 Extension Card 6 16 0, 1 or 2 0 or 1 0 or 1
CCU & 3 Line 8 Extension Card and
8 Extension Card 6 24 0, 1 or 2 0 or 1 0 or 1

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System Components
KX-TA624E Central Control Unit
The central control unit is initially configured 3 exchange lines and 8 extension ports.
The following devices are built in:
1. Music input
2. Paging output
3. RS232C call logging port
4. Ring generator
5. DTMF receivers
6. All system control
KX-TA62474E Expansion Card
Expansion card for the connection of up to 3 exchange lines and 8 telephones. All
ports on this module will support the 7000 series and single line telephones.
Note: Only one of these cards may be fitted onto each KX-TA624E.
KX-TA62477E Expansion Card
Expansion card to allow connection of 8 single line telephones.
Note: Only one of these cards may be fitted onto each KX-TA624E.
KX-TA62491E DISA/OGM/Fax Detection Card
Interface card to provide Direct Inward System Access (DISA) with two user
recorded messages. The messages may be used with the DISA or UCD (Uniform Call
Distribution) features. If fax tone is detected the incoming fax call will be
automatically transferred to the nominated fax extension.
Each cabinet will allow one card to be installed.
KX-TA62493E Caller ID Card
Interface card to allow connection of 8 PSTN or equivalent lines.
Each 3 exchange lines will require one Caller ID Card. For example a basic system
will require one Caller ID card, when a KX-TA62474E expnasion card is fitted an
additional caller ID card will be requred.
KX-TA62460E Doorphone / Door Opener Card
Interface to allow connection of 4 Doorphones and 4 door release mechanisms.
Only one of these cards may be fitted onto each system.

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KX-T30865E Door-phones
Up to 4 door-phones may be connected to the KX-TA624 system provided it is fitted
with the KX-TA62460E card. The door-phones are proprietary, weather resistant
units. There are also four relays for controlling a remote door-lock for each
doorphone.

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Features
Absent Message
Allows an extension user to set a message which will be displayed on the LCD of the calling
extension to show the reason for the called extension’s absence. One of 6 messages can be
displayed, the message may be set for any telephone (single line telephone or proprietary
telephone). Setting or cancelling messages can be done by individual extension users but only
callers using a proprietary telephone with an LCD can see the message.
Account Code
An account code is used to identify incoming and outgoing outside calls for accounting and
billing purposes. The account code is appended to the SMDR call record. For incoming
outside calls,an account code is optional. For outgoing outside calls,there are 4 account input
modes programmable Option, Forced, Verify–All and Verify–Call Barring Override.
Alternate Calling – Ring/Voice
This system offers a proprietary telephone user 2 types of intercom calling, Voice Call mode
and Tone (ring) Call mode.
Voice Call
Informs the called party of an incoming call by the calling party announcing
themselves.
Tone Call
Uses a ring tone.
A proprietary telephone user can select “Voice Call” or “Tone Call” in the Proprietary
Telephone Settings. If the user selects “Voice Call”, the calling party can talk to the user
immediately after the confirmation tone. The calling party can switch the pre-set mode at the
called extension, from “Voice Call” to “Tone Call”, by pressing “*” after dialling the
extension number.
Automatic Callback Busy
When the selected exchange line or dialled extension is busy, the system will automatically
notify an extension user with a callback ringing when the line becomes available.
Automatic Exchange Line Access
When an extension user dials 9 before a telephone number, an idle exchange line from the
dial 9 group of exchange lines is selected automatically.

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Automatic Route Selection (ARS)
The system automatically selects the least expensive of up to five routes based on time and
exchange line used. It is not necessary to dial the access code of the least expensive carrier.
Busy Extension Signalling
When an extension user calls a busy extension, the busy extension will hear a Call Waiting
tone to know that a call is waiting.
Call Barring
Call Barring is a system programmable feature that can prohibit certain extension users from
making unauthorised calls.
Calls made using Speed dialling will also be subject to call barring.
The level of barring when an extension is locked is also selectable through system
programming.
An extension user may override call barring temporarily to make a toll call from a Call barred
extension. The user can carry out this feature by entering one of the pre programmed account
codes before dialling the telephone number. The user can make a call with a lesser level of
barring applied to it.
Call Forwarding
Allows an extension user to transfer intercom calls automatically to another extension or to an
external destination. The following types of call forward are available:
All Calls, Busy or No Answer, To an Exchange Line or Follow Me.
Call Park
Allows an extension user to place a held call into a system parking area. Any extension user
can retrieve the parked call to perform other operations. Up to 10 calls can be parked at the
same time.

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Call Pickup
There are four types of call pickup:
Directed Call Pickup
Allows an extension user to answer a call ringing at any other extension.
Group Call Pickup
Allows an extension user to answer a call ringing at another extension, if the call is ringing
within the same extension group. If required extensions may pickup calls ringing in their
group just by going off-hook, even though their extension is not ringing.
Call Pickup Deny
Allows an extension user to prevent other extensions from picking up a call ringing at the
user’s extension with the Call Pickup feature.
Call Retrieving from a TAM (Telephone Answering Machine) - Allows an extension user to
answer an incoming call already answered by a TAM.
Call Splitting
Allows an extension user to talk to 2 different people. If a call is received while the user is
already busy on a call, the user can place the current call on hold and have a conversation
with the other party.
Call Transfer
Allows an extension user to transfer a call, an intercom or an outside call, to another
extension. Two types are available. Intercom calls may also be transferred to an external
telephone number using Screened call transfer.
Screened Call Transfer: Announces the call to another extension before completing the
transfer.
Unscreened Call Transfer: Immediately releases the call to another extension without an
announcement
Call Waiting
During a conversation, the Call Waiting tone informs extension users that there is a call
waiting. The user can answer the second call by disconnecting the first call or placing it on
hold.
Conference
During a 2-party conversation, an extension user can add up to three other people to make a 5-
party conference. The maximum number of members of a conference can be programmed in
system programming. The 5 party conference may be made up of a maximum of 2 external
callers and 5 internal extensions subject to a maximum of 5 participants.

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Data Line Security
Prevents an extension user from being interrupted by the Call Waiting and Executive
Busy Override features. This feature also prevents a ring tone or an alarm tone from
being sent when a call is kept holding longer than the allowed time. Data
communication devices, such as computers and facsimiles, connected to an extension
port can operate without interruptions.
Direct In Line (DIL)
Enables an incoming outside call to go directly to a specified extension. This exchange line
can be used by multiple extension users to make a call, but can only be used by one extension
to receive a call. DIL can have a different destinations in the day, night and/or lunch modes.
Direct Inward System Access (DISA)
Allows an outside caller to access specific system features as if the caller is an extension in
the system. When the call arrives at the telephone system the caller will hear internal dial tone
or optional greeting message. If the caller dials an extension or feature number the caller will
be connected to that extension or access the feature required.
Do Not Disturb (DND)
Allows an extension user to prevent other parties from disturbing them. The extension will
not receive intercom or outside calls.
Do Not Disturb may be overridden by an extension with the privaledge of Do Not Disturb
(DND) override.
Door Opener
Up to 4 Door Openers can be connected to the system. The door can be unlocked by a pre-
assigned extension users.
Doorphone
Up to 4 Doorphones (KX-T30865) can be installed. If a visitor presses the doorphone button,
pre-assigned extensions will ring the users can answer the call and talk to the visitor. Any
extension user can call a doorphone.

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DSS Console
The Direct Station Selection (DSS) Console provides direct access to extensions, a busy lamp
display, as well as 16 PF (Programmable Feature) buttons.
Up to 2 consoles can be installed per system.
If a feature like One-Touch Dialling is assigned to a DSS button or PF button, accessing the
feature can be done easily by pressing the corresponding button.
Exchange Line Ringing Selection
When an outside call is received at an extension, the user can select whether their extension
will ring or not.
Executive Busy Override
Allows an extension user enabled in program to interrupt an existing intercom or exchange
line call. A 3-party conference will be established.
Extension users may prevent (if permitted) other extension users from interrupting their
Conversation using Executive Busy Override Deny.
Extension Button Confirmation
Allows a display proprietary telephone user to confirm the values stored in the buttons on
their telephone , such as the REDIAL button or flexible line key, by pressing the
corresponding button while on-hook.
Extension Group
The system supports 8 extension groups. In an extension group, the following features can be
activated.
Group Call Pickup
Any member of an extension group can pick up a call directed to another member in the same
group.
Paging Group
Any member of an extension group can make a voice announcement to another group
member.
An extension group can also be a hunting group.
DISA Ring Group
All extensions in a DISA ring group assigned as an auto attendant destination will ring
simultaneously.
UCD Group
One extension group assigned as the UCD group can be the destination of incoming outside
calls via the UCD feature.

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Extension Hunting
If a called extension is busy, Extension Hunting redirects the incoming call to an idle
extension in an extension group in numerical order. Idle extensions are automatically hunted
according to programming. The following 2 hunting types are available.
Circular hunting
The extensions are hunted one time in numerical order. If all extensions are busy,
busy tone will be heard.
Terminate hunting
The extensions are hunted until the extension which has the
highest extension number in the group is reached. If all higher order numbers are busy, the
search will end and busy tone will be heard.
Extension Lock
Allows an extension user to lock their extension so that other users cannot make outside calls
until it is unlocked. Any 4-digit code can be used to lock and unlock an extension.
The operator and manager are given the privilege of controlling Electronic Extension Lockout
at any extension by using the DSS console. The operator and manager can see the status of
each extension, locked or unlocked, using the pre-assigned DSS button LED on the DSS
console. For example, this feature is useful for a small hotel or motel when guests are checked
out.
The operator and manager can cancel Electronic Extension Lockout of all extensions at one
time.
External Feature Access
Allows an extension user to access special features (e.g. Call Waiting) offered by the Local
Exchange or host PBX. This is done by placing the current call on hold and sending a recall
signal using either the RECALL button or the feature number. This feature is effective only
during an outside call.
Flexible Buttons
A proprietary telephone user can change the flexible buttons on the telephone and DSS
console to certain function buttons. For example, if the telephone has more line keys than
available exchange lines, the unused line keys may be changed to One-Touch Dialling
buttons, etc.
Handsfree Answerback
Allows a proprietary telephone with a speakerphone to answer an intercom call without lifting
the handset. This feature performed by pressing the AUTO ANSWER/MUTE button to
prepare the telephone to perform this operation. Intercom calls will cause the telephone to
emit a warning tone and then switch on the speaker phone.

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Handsfree Operation
Allows a proprietary telephone user to dial and talk to the other party without lifting the
handset.
Hold
Allows an extension user to place an intercom and/or outside call on hold. The held call can
be retrieved by the user who held it, or by any other extension (Call Hold Retrieve). With a
single line telephone (SLT), either one outside or intercom call can be held at one time
Exclusive Hold
Allows a proprietary telephone user to prevent other extension users from retrieving their held
call. Only the user who held the call can retrieve it.
Intercept Routing
Provides automatic redirection of incoming outside calls via the DISA or UCD feature. The
Intercept Routing feature works in the following 2 cases.
1) When nothing is dialled after a dial tone or OGM is sent to the caller. (The DISA feature
only)
2) When the call is not answered within a programmed time. This is called Intercept
Routing – No Answer (IRNA).
Language Selection
English, Spanish or Portuguese language can be displayed on the LCD display of a
proprietary telephone during operation and Proprietary Telephone Settings, but not used
during System Programming. The selected language can also be used for the SMDR printout.
Limited Call Duration
The system disconnects outside outgoing calls when a specific timer expires. The timer is in
effect when making an outside call, transferring an intercom call to an exchange line or
forwarding an intercom call to an exchange line. Limiting the time of the call can be assigned
through System Programming.

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Line Access Keys
The flexible line keys on a Proprietary Telephone may be set to any of the following three
functions:.
Trunk Group (G-CO) Key
Receiving or making outside calls is on an trunk group basis. The trunk group is assigned in
program [404]. Any incoming call from any exchange line in the trunk group arrives at the G-
CO key. To make an outside call,the user can access an idle exchange line in the group by
simply pressing the assigned G-CO key.
Single Exchange Line (S-CO) Key
Receiving or making outside calls is done using a specific exchange line. An incoming call
from the specific exchange line arrives at the S-CO key. To make an outside call,the user can
access the specific exchange line by simply pressing the assigned S-CO key.
Other Exchange Line (O-CO) Key
Exchange lines,which are not assigned to an S-CO or G-CO key,can be assigned to a flexible
line key as the O-CO key. An incoming call on an exchange lines arrives at the O-CO. To
make an outside call,the user simply presses the assigned O-CO key.
Log-In/Log-Out
Allows an extension user to Log-In (join) or Log-Out (leave) a hunting, DISA ring or UCD
group temporarily. Extensions in the log-out mode will not receive calls by Extension
Hunting, DISA or UCD but will receive other calls, not like the Do Not Disturb (DND)
feature. The Log-In/Log-Out button can be assigned to a flexible button in the Proprietary
Telephone Settings. The lighting patterns of the Log-In/Log-Out button on a proprietary
telephone and status are as follows.
Off: Log-In mode
Red: Log-Out mode
Message Waiting
Allows an extension user to notify an extension of a message waiting when the extension is
busy or does not answer the call. Only a proprietary telephone user with a MESSAGE button
can receive a message. If the LED on the MESSAGE button lights red there is a message
waiting. Pressing the lit MESSAGE button will reply to the message by calling the extension
which left the message. The messages which are stored in the mailbox of the Voice
Processing System can also be heard by following the Voice Mail prompts after pressing the
lit MESSAGE button.
Music on Hold / Background Music (BGM)
An external music source may be connected to the system to provide music to callers
on hold and background music through the speakers of proprietary telephones.

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One-Touch Dialling
Allows a proprietary telephone user one-touch access to a telephone number or system
feature.
This is done by storing an extension number, telephone number or a feature number (up to 24
digits) in a One-Touch Dialling button. One-Touch Dialling buttons can be assigned to
flexible buttons on a Proprietary Telephone.
Operator / Manager Extension
The system supports one operator. Any extension can be designated as an operator. Extension
port 01 is the system manager extension. The extension assigned as an operator or manager
has the ability to perform the following operations.
• Setting the Date and Time
• Cancelling the Electronic Extension Lockout
• Setting/Cancelling the Remote Extension Lock
• Setting/Cancelling/Confirming the Timed Reminder (Wake-up Call) Remotely
• Recording and Playing the Outgoing Message
• Changing the Day/Night/Lunch Mode
The manager extension can also perform System Programming and the following operation.
• Setting the Extension Password
Operator Call
Allows an extension user to call an operator within the system by dialling 0.
Outgoing Message (OGM)
Allows the extension assigned as an operator or manager to record up to 2 outgoing voice
messages (maximum 30 seconds each). This message is played when a caller accesses the
DISA or UCD feature. An optional OGM/FAX Detection Card is required to program the
OGM.

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Outside Calling
Allows an extension user to make a call to an external party by using one of the following line
access methods.
Automatic Line Access
By dialling 9 an extension user will select an idle exchange line automatically from the dial 9
group. For a proprietary telephone, a Line Access Key assignment (S-CO,G-CO,O-CO) in the
Proprietary Telephone Settings is required. If Idle Line Preference is set on the telephone in
the Proprietary Telephone Settings, the user can access an idle line only by going off-hook.
Individual Line Access
Allows a proprietary telephone user to select the desired exchange line by pressing the line
key assigned as an S-CO key.
Trunk Group Access
Allows an extension user to select an idle line within a designated trunk group. To specify a
trunk group, dial the feature number “8” and the desired trunk group number (1 through 6). A
proprietary telephone user can also specify a trunk group by pressing a G-CO key.
Paging
Allows an extension user to make a voice announcement to several people at the same time.
The message is announced over the built-in speakers of proprietary telephones and/or the
external pager. The paged person can answer the page from any extension within the system.
The following types are available.
All Extensions
Makes a voice announcement to all extensions over the built-in speakers of proprietary
telephones.
Group
Makes a voice announcement to the designated extension group over the built-in speakers of
proprietary telephones.
External
Makes a voice announcement over the external pager.
All Extensions & External
Makes a voice announcement to all extensions over the built-in speakers of proprietary
telephones and the external pager.
Paralleled Telephone Connection
Any proprietary telephone can be connected in parallel with a single line device, such as a
single line telephone, cordless telephone, modem or facsimile.
Personal Speed Dialling
Allows an extension user to store up to 10 speed dialling numbers (0 through 9) with a
maximum of 24 digits per number. An extension number, telephone number or feature
number can be stored. For example, storing extension numbers for each room in a house can
be useful. (1 = Living Room, 2 = Kitchen, etc.) To make a call, dial # and the number.

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Pickup Dialling
Allows a single line telephone user to make an outgoing call by going off-hook, if the user has
stored the telephone number (up to 32 digits) beforehand. This feature is also known as “Pick
Up Dial” or “Hot Line”.
Polarity Reverse Detection
The circuit in the system can detect the reversal of exchange line polarity from the Local
Exchange when making an outside call. This detects answer (the called party goes off-hook)
and end (the called party goes on-hook) of an outgoing outside call. The conversation time
can be verified on the SMDR printout using this feature. When an outside call is received, the
circuit can also detect the polarity reverse signal before ringing helping to prevent call
collision.
Power Failure Transfer
During power failure, specific extension telephones are automatically connected to specific
exchange lines. This allows limited operation between the following extensions and
exchange lines.
Exchange line 1: extension port 01
Exchange line 4: extension port 09
Preferred Line Assignment — Incoming
A proprietary telephone user can select the method to answer incoming outside calls from the
following 3 line preferences. System Programming and Proprietary Telephone Settings are
required.
No Line Preference (Manual Answer)
When an incoming call is received, the extension user must go off-hook and then press the
flashing line key.
Prime Line Preference
When more than one incoming calls are received at the same time, the user can receive the
call on the preferred exchange line by only going off-hook.
Ringing Line Preference
When an incoming call is received, the user can receive the call ringing at their telephone by
going off-hook.

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Preferred Line Assignment — Outgoing
A proprietary telephone user can select a desired outgoing line preference to make outside
calls from the following 3 line preferences. System Programming and Proprietary Telephone
Settings are required.
Idle Line Preference
When the user goes off-hook, they are connected to an idle line. An idle line is automatically
selected.
Prime Line Preference
When the user goes off-hook, they are connected to thier pre-assigned line. Assign one prime
line beforehand.
No Line Preference
No line is selected when the user goes off-hook. They must select a line to make a call.
Recall
The RECALL button is used to allow a proprietary telephone user to access BT “Star
Services” or features of a host PBX. It may also be used to disconnect the current call and
originate another call without hanging up.
Recall Button on a Single Line Telephone
Pressing the Recall button is used to allow a single line telephone user to hold a call for
transferring or holding.
Redial
Last Number Redial
Every extension automatically saves the last telephone number dialled so that the extension
user can make a call to the same party later using a simple operation.
Saved Number Redial
Allows a proprietary telephone user to save the current external telephone number in the
SAVE button during a conversation, so that the extension user can redial the same party later
using a simple operation. The saved number can be redialled until another number is stored. A
flexible button can be assigned as the SAVE button in the Proprietary Telephone Settings.
Ringing Pattern Selection
A ringing pattern can be selected depending on the type of call such as an outside call,
intercom call and doorphone call. There are 4 ringing patterns available