BusinessPhone Communication Platform 7.0
Facilities

## Refer Back

## Definition

The possibility to switch back and forth between two or more call partners for an unlimited number of times.

## Use

Enables an extension user to maintain contact with several call partners by switching simply from one to the other.

The call partners can be both internal and/or external.

## Operation

### System Telephones

Refer back is preceded by inquiry.

Refer back cannot be initiated until the inquiree (person to whom inquiry is made) answers.

The relevant lamps on the telephone of the extension who undertakes parking flash slowly for those keys on which calls are parked.

Refer back is executed by pressing the key for the desired call partner.

The parked party is connected and the previously connected party will automatically be parked individually.

The user can now choose to recaccess any of the parties that are parked on her/his telephone.

### Non system instruments

Refer back is preceded by inquiry.

Refer back is not possible until the inquiree answers.

To go back to the parked party:

Press R-button (IP telephones use the Line key instead. Digit “1” for rotary dial telephones and mobile extensions) and 2.

If it is desired to disconnect the inquiree, the inquirer presses the R-button and 1.

If only the R-button is pressed, reconnection of the parked party will take place automatically after three seconds.

In the event of uncompleted inquiry from an analog rotary dial telephone, the user must replace the handset and the extension will be rerung by the parked party.

If digit 2 is dialled or if timeout takes place the refer-back procedure can be repeated an unlimited number of times provided the parked party does not go on hook.

## Capacity

The number of ongoing calls on System Telephones is limited only by the number of traffic function keys.

Analogue telephones can only switch between two call partners.

## Limitations

For refer back to be possible, an internal call must have been answered and the called party must remain on the line.

For external calls where no answer indication is obtained for outgoing calls “end of selection”, that is digit transmission, must have been completed.

## Programming

None.

## Equipment

None.

Revision: G © Ericsson Enterprise 2005