BusinessPhone Communication Platform 4.0
Facilities

## Supervision

## Definition

By programming an extension's directory number on a key, it is possible to activate the traffic function SUPERVISION and to undertake the following functions:

- Call the extension
- See the extension's telephone situation
- Answer calls to the extension

## Use

By programming an extension’s directory number on a key, the supervision feature allows the following options:

- As answer key for common call pick-up function
- Within a work group, in order to answer calls to other extensions in the group
- In secretary functions for mutual monitoring (supervision) of various directory numbers of executives and secretaries

## Operation

### System Telephones

#### Lamp characters

Extinguished |  | Monitored party is free on both Line 1 and Line 2 |
Rapid flash |  | Call is presented to Line 1 or Line 2 for monitored party |
Steady glow |  | Monitored extension is busy on Line 1 or Line 2 |

#### Own call to monitored party

1. Press supervision key.

- One of traffic functions Line 1, Line 2 or Inquiry is seized and its lamp flashes to confirm connection.
- Ring control tone is heard.

A telephone with display shows, e.g.:

    “JOHNSON ANDREW    203 FREE”.

If the supervision key is pressed for an extension that is busy on both lines, busy tone will be heard.

#### Pick up of calls

Lamp for monitored party flashes rapidly.

1. Press supervision key.

- Picked up call is presented on one of free traffic functions Line 1, Line 2 or Inquiry.
- Lamp for selected key flashes as, confirmation of connection.
- Supervision key's lamp extinguishes unless monitored extension has several unanswered calls.

The top row shows by whom the telephone was picked up.

The second row shows the conversation partner.

## Capacity

The number of individual supervision functions is limited only by the number of available programmable keys with lamps.

BASIC |  | DBC 210 |  | = 3 |
ECONOMYplus |  | DBC 211 |  | = 4 |
STANDARD |  | DBC 212 |  | = 4 |
EXECUTIVE |  | DBC 213 |  | = 14 |
OPERATOR |  | DBC 214 |  | = 3 |
KEY PANEL |  |  |  | = 17 |
Old telephones:
BASIC |  | DBC 199 |  | = 0 |
ECONOMY |  | DBC 601 |  | = 0 |
ECONOMY |  | DBC 751 |  | = 0 |
STANDARD |  | DBC 631 |  | = 10 |
STANDARD |  | DBC 755 |  | = 10 |
EXECUTIVE |  | DBC 662 |  | = 30 |
EXECUTIVE |  | DBC 753 |  | = 30 |
OPERATOR |  | DBC 663 |  | = 20 |
OPERATOR |  | DBC 754 |  | = 20 |

## Limitations

Extensions equipped with Analogue telephones cannot use this facility.

For both call and answer, at least one of the traffic functions Line 1, Line 2* or Inquiry must be free.

Calls that are signalled on the supervision key include all calls to the monitored extension's directory number, that is on both Line 1 and Line 2*.

A monitored extension is indicated as busy if either Line 1, Line 2* or Inquiry is seized. This does not prevent calls from being initiated to the monitored extension's Line 2*, if this is free.

The Supervision function on the DBC 210 is only available using an ELU-D3/MFU board or higher.

The supervision of a PBX group with serial distribution will not be supported, however it will be supported with parallel distribution.

(* not available on the BASIC Telephone)

## Programming

0301 |  | Key function

The selected key on the system telephones must be programmed for supervision.

Enter function = 13

0302 |  | Number/ID

0303 |  | Ringing alternative

### Individual programming

Extensions equipped with System Telephones can program supervision themselves.

See also document Facility Description- General (155 34-ASB 150 02 Uen).

## Equipment

System Telephone.

Revision: E © Ericsson Enterprise 2003