BusinessPhone Communication Platform 7.0
Facilities

## ISDN SS Explicit Call Transfer (ECT)

## Definition

The supplementary service ECT enables the S-Interface user to make an internal call transfer.

## Use

The S-Interface user can initiate a call transfer (ECT) during a inquiry call. A new internal connection is hereby established between the primary hold call and the secondary inquiry call and the S-Interface user is released from the call connections.

Call transfer can be done via:

- explict call transfer (ISDN ECT SS)
- hook-on (proprietary service, command 1959)
- keypad facility *4# (stimulus service)

## Operation

See User Guide of the ISDN terminal.

## Capacity/Limitations

The supplementary service ECT is stand-alone provided, i.e. the feature is not supported to remote users in public or private ISDN. However if the ’remote user’ is another S-interface user then information signalling (new connected party after transfer) will be provided.

## Programming

1965 |  | Call transfer via hook-on from TE’s

See also User Guide of the ISDN terminal.

## Equipment

BTU-B_ or MFU.

Revision: M © Ericsson Enterprise 2005