Directs incoming outside (CO) line calls to a preprogrammed destination based on the outside (CO) line carrying the call. Each outside (CO) line can have a different destination for each time service mode.

[Programming Example]

The table can be programmed for each outside (CO) line.

Outside (CO) Line No.

Distribution method and destination*

Day

Lunch

Night

DIL

101

DIL

102

DIL

102

DIL

103

DIL

103

DIL

103

(Cont.)

Normal

–

Normal

–

Normal

–

CO Line Mode—Day/Night/Lunch [414-416]

In this example:
If an outside (CO) line call is received on outside (CO) line 1:

a)	In day mode: Direct In Line (DIL) distribution is assigned. The call is routed to its DIL destination, extension 101.
b)	In lunch/night mode: DIL distribution is assigned. The call is routed to its DIL destination, extension 102.

•	To use this feature, "DIL" must be selected as the distribution method for the desired outside (CO) line port. When "Normal" is selected, an incoming outside (CO) line call is received at the extensions assigned in Flexible Ringing—Day/Night/Lunch [408-410].
•	This outside (CO) line can be used by multiple extension users to make calls, but can only be used by a single extension to receive calls.
•	If a DIL destination is an extension within an extension group that has enabled the Idle Extension Hunting feature and it is busy, the Idle Extension Hunting feature becomes active ( 1.2.1 Idle Extension Hunting).

Redirects incoming outside (CO) line calls via the Direct Inward System Access (DISA) or Uniform Call Distribution (UCD) feature to a preprogrammed destination when the original destination does not, or cannot, answer the call. There are 2 types of Intercept Routing, described below.

Type

Description

No Dial

After hearing a dial tone (short beep) or a DISA outgoing message (OGM), if the caller does not dial anything or enters an unrecognised input, the call is redirected to preprogrammed intercept destinations in the following priority:
DISA IRNA to BV—Day/Night/Lunch [438-440]

Flexible Ringing—Day/Night/Lunch [408-410]

Intercept Routing—No Answer (IRNA)

If a called party does not answer a call within a preprogrammed time period (

DISA Ring Time before Intercept [508], UCD Ring Time before Intercept [525]), the call is redirected to preprogrammed intercept destinations in the following priority:
DISA IRNA to BV—Day/Night/Lunch [438-440]

Flexible Ringing—Day/Night/Lunch [408-410]

There are 2 types of internal calls, described below.

Feature

Description

Details in

Intercom Call

A call from one extension to another.

• 1.5.1.1 Intercom Call

Doorphone Call

A call made from a doorphone to its preprogrammed destination for the current time service mode, assigned to the doorphone's port (

2.2.3 Time Service).

• 1.15.1 Doorphone Call

Extension telephones can indicate an incoming call in various ways, described below.

Indication Type

Feature

Description

Details in

Ring/No Ring

Outside (CO) Line Ringing Selection

Each extension can be programmed to ring or not ring when receiving an outside (CO) line call.

• 1.1.3.2 Outside (CO) Line Ringing Selection

Ring Tone

Ring Tone Pattern Selection

A telephone rings when receiving a call.
A different ring tone pattern can be assigned to each incoming call type.

• 1.1.3.3 Ring Tone Pattern Selection

Voice-calling

Alternate Receiving—Ring/Voice

Proprietary telephone (PT) users can choose how their telephones receive intercom calls, by selecting to hear ring tones or the caller's voice.

• 1.5.1.1 Intercom Call

LED (Light Emitting Diode)

LED Indication

The LED indicators on a PT can indicate the status of different lines using light patterns and colours.

• 1.18.3 LED Indication

Display (Caller Information)

Display Information

A user's PT can show a variety of information on the display, such as the outside (CO) line number, the caller's name and number, the extension number and name of the calling extension after the call is forwarded, etc.

• 1.18.4 Display Information

Tone During a Conversation

Call Waiting

When an extension user is in the middle of a call, the user can be alerted to a new call by a call waiting tone.

• 1.1.3.5 Call Waiting

An extension user can select whether the telephone will ring or not when receiving call(s) from assigned or all outside (CO) lines through personal programming.

•	System programming determines which extension(s) will ring for incoming outside (CO) line calls in each time service mode ( Flexible Ringing—Day/Night/Lunch [408-410]).
•	If an outside (CO) line call reaches a user's extension, but the extension is set to not ring, the CO button will flash. The outside (CO) line call can be answered by pressing the flashing CO button.

A different ring tone pattern can be assigned to each incoming call type, such as intercom calls (

Extension Ring Tone Pattern [115]), calls from each doorphone (

Doorphone Ring Tone Pattern [706]), and calls from each outside (CO) line (

CO Line Ring Tone Pattern [423]).
Available ring tone patterns are as follows:

[Ring Tone Patterns]

•

The ring tone pattern for incoming calls (intercom calls and outside (CO) line calls) to a single line telephone (SLT) can be fixed to "Single" or "Double" for each extension through system programming (

SLT Fixed Bell Pattern [629]). The length of the ring tone pattern depends on the preprogrammed length of the bell-on signal (

SLT Ring Bell-on Time [143]), combined with the ratio between the bell signals of the SLT (

SLT Ring/Silence Ratio [142]). Depending on the type of SLT being used, the SLT may not ring properly, if the ring tone pattern of the SLT is set differently from that used by the telephone company.

Distinctive Ring Detection (DRD) is only available in New Zealand.

The PBX can detect the following 4 ring tone patterns sent from the telephone company for each outside (CO) line. When the PBX detects one of the ring tone patterns, the call will be transferred to the preprogrammed destination(s) automatically according to system programming. In addition, the extension ring tone pattern for the detected call can be assigned through system programming as shown below.

[Ring Tone Patterns Sent from the Telephone Company]

Pattern

Destination assigned in

Ring Tone Pattern assigned in

Flexible Ringing—Day/Night/Lunch [408-410], or sent to the Direct Inward System Access (DISA) line or Uniform Call Distribution (UCD) group

CO Line Ring Tone Pattern [423]

DRD Ring Pattern 2 Extension Assignment—Day/Night/Lunch [427-429] (New Zealand only)

DRD Pattern 2 and 3 Ring Tone [433-434] (New Zealand only)

DRD Ring Pattern 3 Extension Assignment—Day/Night/Lunch [430-432] (New Zealand only)

DRD Pattern 2 and 3 Ring Tone [433-434] (New Zealand only)

FAX Connection [503]

CO Line Ring Tone Pattern [423]

A busy extension user can be alerted to a new call by Call Waiting. The busy extension user can then answer the second call either by disconnecting the current call or placing it on hold.
If Call Waiting is enabled, a call waiting tone will be sent to the user under the following conditions:

a)	When an outside (CO) line call or a doorphone call is received, or
b)	When another extension executes the Busy Station Signalling (BSS) feature.

If disabled, a reorder tone will be sent to the extension that executed the BSS feature.

Call Waiting from the Telephone Company
Besides the Call Waiting feature provided by the PBX, you can also subscribe to your telephone company's Call Waiting service and receive call waiting tones through the telephone company's lines. This feature is available when an extension is in a conversation with an outside party, and a call is received from another outside party on the same outside (CO) line. The external call waiting tone will alert an extension user of the incoming outside (CO) line call that is waiting. The user can answer the second call by disconnecting the current call or placing it on hold. If a call waiting tone is heard but the corresponding CO button does not flash, this tone is an external call waiting tone from the telephone company. For details, consult your telephone company.

•	Data Line Security When an extension user activates Data Line Security, Call Waiting is turned off ( 1.10.5 Data Line Security).
•	Call Waiting Tone A proprietary telephone (PT) user can select the preferred call waiting tone through personal programming (Call Waiting Tone Type Selection).
•	Caller ID Information When an extension receives a call waiting tone, the caller's information will flash on the display for 5 seconds at 15-second intervals.

•	1.2.2 Uniform Call Distribution (UCD)
•	1.15.6 Direct Inward System Access (DISA)
•	1.15.7 Built-in Voice Message (BV)

•	1.1.3.2 Outside (CO) Line Ringing Selection
•	4.2.1 Tones/Ring Tones

•	1.2.4 When the Dialled Party is Busy or There is No Answer
•	1.4.4 Answering Call Waiting
•	1.7.3 Receiving Call Waiting
•	3.1.2 Changing Personal Settings Using Programming Mode