BusinessPhone Communication Platform 4.0
Facilities

## ISDN SS Direct Dialling In (DDI)

## Definition

The supplementary service DDI enables a user to call directly via a public ISDN a user in a private ISDN by using the public ISDN numbering plan.

For more information see Direct In-Dialling (162/155 34-ASB 150 02 Uen).

## Use

ASB 150 02 handles DDI calls from a public ISDN in the same way as those from an analogue network.

See Direct In-Dialling (162/155 34-ASB 150 02 Uen).

## Operation

See Direct In-Dialling (162/155 34-ASB 150 02 Uen).

## Capacity

See ISDN Basic Access, ISDN Primary Rate Access.

## Limitations

See Direct In-Dialling (162/155 34-ASB 150 02 Uen).

## Programming

1009 |  | Reroute on answering position barred ?

1010 |  | Reroute on answering position blocked?

1011 |  | Reroute on answering position vacant?

1012 |  | Reroute on answering position busy?

1016 |  | Reroute on no answer ?

1017 |  | Reroute on incomplete number ?

1023 |  | Trunk line type

1309 |  | PTS-signal from parent exchange = dial tone

1801 |  | Common number at automatic outgoing/incoming traffic

1802 |  | Pre-digits at automatic incoming traffic

1411 |  | Time supervision for first digit at automatic incoming traffic

1412 |  | Time supervision between digits at automatic incoming traffic

1413 |  | Time supervision of anser at automatic incoming traffic

1925 |  | Digits to remove when number plan is E.164

1926 |  | Digits to remove when number plan is E.164

1927 |  | Digits to remove when number plan is E.164

1928 |  | Digits to remove when number plan is E.164

1929 |  | Digits to remove when number plan is E.164

1930 |  | Digits to remove when number plan is E.164

1931 |  | Digits to remove when number plan is E.164

1932 |  | Digits to remove when number plan is E.164

1933 |  | Digits to remove when number plan is E.164

1934 |  | Digits to remove when number plan is E.164

1935 |  | Digits to remove when number plan is E.164

## Equipment

BTU-D with ISDN prom set or BTU-B_ or MFU.

Revision: H © Ericsson Enterprise 2003