BusinessPhone Communication Platform 5.1
Facilities

## Automatic Redial

## Definition

This feature enables the user to initate the automatic redialing of the last dialled external number.

Dialling is repeated for up to 5 automatic redial requests which is controlled by programmable function keys.

(For further information please refer to the document “Last external number redial” (320/155 34-ASB 150 02 Uen).

## Use

“Automatic Redial” improves the feature “Last external number redial”: Automatic redial sequences of external number dialled last, which are unanswered or busy, can be requested by the user.

(The feature “Last external number redial” will work independent of “Automatic Redial” and remains unchanged).

The actual status of automatic redial calls is controlled by programmable function keys and is indicated by assigned key LEDs.

The status is assigned by BMS.

This function makes it possible to store the redial attempts in a programmable time grid table.

## Operation

### Automatic Redial function

If the user has programmed the specified function keys on the telephone (extension/operator) and “Automatic Redial” is already activated, the stored numbers will be repeatedly dialed by the system.

A new redial attempt can be started if:

- A busy tone indication is received
- A timeout during ringing state is generated

In general the command 0193 Automatic Redial allowed? defines whether a extenstion is allowed to use automatic redial of external number.

Note

Operators will always be allowed to use the function automatic redial. Analog and cordless instruments, which do not support function keys, will be able to use the feature “Automatic Redial” via an interface to a CTI (Computer Telephony Integration) application.

The multiple function keys of “Automatic Redial” indicate different states by means of LEDs on the telephone.

- Steady light - “Automatic Redial” is stored and active
- Rapid flashing - “Automatic Redial” is currently active (e.g. trunk seized)
- Slow flashing - “Automatic Redial” is in pause
- Off - No “Automatic Redial” is stored

If required, one function key may be programmed to pause all ongoing sessions. (This function key is optional and is only programmed if the function is required).

- Steady light - all “Automatic Redial” sessions are paused
- Off - normal “Automatic Redial” is active

Here is an example how “Automatic Redial” works:

To invoke “Automatic Redial” the user has to press the relevant programmable keys to store numbers. If more numbers are needed to store, more function keys have to be programmed.

In case of an already active request, no new “Automatic Redial” will be accepted on the specified function key. The “Automatic Redial” - function will be indicated by a confirmation tone.

A rapidly flashing LED indicates that automatic redial is active and the telephone (extension/operator) will be set on busy for other calls.

On the display extension a text string - ”Automatic redial request” - shows that the previous outgoing external call will be established.

If the trunk access is successful and connection to the external destination is established at the time of receiving

- free indication or
- connection indication,

the request will be indicated to the user by a call back ringing signal on his instrument and a display text string - ”AUTO REDIAL CALL” will be shown.

If the external party answers the call, he/she will hear a voice announcement - “This is an automatic generated call. Please wait while your call is being connected.”

The initiating extension will be connected to the already active external outgoing call. In case of missing VMU-HD, the user will hear a ringing tone instead.

In case that the recall was not successful the function key LED will change to steady lighting and the call will be rescheduled and prepared for another try.

## Capacity

For automatically initiated calls the same rules apply as for a normal call. The function works in the same way as if “Last Nummer Redial” had been initiated manually.

## Limitations

“Automatic Redial” will not be possible with following conditions:

- Blocked
- Vacant
- Incomplete
- Congestion
- Link error
- Net fault
- Incompatible destination
- Facility rejected
- Destination out of order

Futhermore, if one of the above states is received during an “Automatic Redial” session, the session will be canceled.

Note

There has to be a limitation on how many user can use the feature at the same time. This limitation has to be set between 20 and 40 extensions.

On an analog trunk without a B-answer, the function - automatic redial - will be restricted.

## Programming

The following commands have to be programmed to use the function “Automatic Redial”.

0193 |  | Auto Redial allowed?

This command specifies whether the extension has access to the AR feature. The operator (DBC 214) is always authorised to access this feature.

2271 |  | Number of Automatic Redial requests?

2272 |  | Trunks available for Automatic Redial

2273 |  | Automatic Redial Trunk Access Retries

2274 |  | Automatic Redial Answer Supervision Time

2275 |  | Automatic Redial Table

### Statistical Information

It is possible to read out the following information for statistical reasons (e.g. system optimising or fault finding) from BMS:

- Currently stored “Automatic Redial” processes (system wide) in real-time with the possibility to clear them all.
- Current amount of users who have stored “Automatic Redial” numbers

## Equipment

The feature is only accessible from system instruments.

### FECU

To use the feature “Automatic Redial”, a minimum FECU (KDUBS13013/1 - V5.1 - R13 onwards)) has to be connected to the CPU-D4, see Facility Description – General (155 34-ASB 150 02 Uen), chapter “Functionality of ASB 150 02 With/Without Connected FECU”.

Revision: B © Ericsson Enterprise 2003