BusinessPhone Communication Platform 5.1
Facilities

## Abbreviated Number Dialling – Common Numbers

## Definition

Abbreviated number dialling means that the number of an internal or external caller is stored in the memory and called by pressing a key or by dialling the directory number.

## Use

External numbers of common interest for a majority of extensions are stored as common abbreviated numbers.

Abbreviated numbers are easy to remember and simplify the procedure for calls to subscribers with lengthy numbers.

As it is not possible to analyse common abbreviated numbers by the TCD-facility (see "Trunk Call Discrimination (TCD)", 487/155 34-ASB 150 02 Uen) extensions may call selected telephone numbers whose area codes are normally blocked for these extensions.

#### Incomplete abbreviated numbers

An abbreviated number can also be stored as “incomplete”, for example all digits can be stored except the extension number itself in a DID-number.

The caller can then her-/himself dial the complementing digits or another programmed abbreviated number.

#### Diversion to an abbreviated number

Diversion direct to an abbreviated number is allowed from a physical extension, but not from a fictive number.

See also the following documents:

- "Diversion Direct" (165/155 34-ASB 150 02 Uen).
- "Fictive Number" (201/155 34-ASB 150 02 Uen).

## Operation

#### Digital telephones

- Dial the relevant abbreviated number
- Line 1, Line 2 (not available on BASIC Telephone) or Inquiry is seized.
  Lamp flashes to confirm connection
- Stored number is transmitted.
  Trunk is selected on the basis of the programmed route access code. If pause for dial tone has been inserted, number transmission is halted until tone is detected.

A telephone with display shows the stored number.

#### Abbreviated number with suffix dialling

The user can complement all abbreviated numbers with more digits, which are dialled directly on the key set.

If several abbreviated numbers are to be dialled in succession, these need to be separated by depression of 2nd and + key.

#### Analogue telephones

- Lift handset
- Await dial tone
- Dial relevant abbreviated number.
  Stored number is transmitted

## Capacity

Up to 16 number series can be defined for common abbreviated numbers.

The number of abbreviated numbers is restricted solely by the available E2PROM capacity, but it is possible to program at least 1000 numbers.

Each abbreviated number can have a maximum of 23 digits including intermediate tones and trunk access number (Up to ASB 150 02 R9 each abbreviated number can have 17 digits).

## Limitations

Callers must have an abbreviated number dialling category that permits access to the relevant abbreviated number.

Common abbreviated numbers are checked by the traffic group matrix and are not subject to analysis by the TCD (Trunk Call Discrimination)-function.

Abbreviated numbers can be stored on name selection keys.

## Programming

### Abbreviated number series

These commands are only accessable via BMS:

5413 |  | Create directory number series for abbreviated numbers

5513 |  | Delete directory number series for abbreviated numbers

5620 |  | Alteration of directory number series for abbreviated numbers

5813 |  | Show abbreviated number series for abbreviated numbers

6510 |  | Administrative data for short numbers

### Abbreviated number table

2501 |  | Programming of abbreviated numbers

### Categorisation of abbreviated numbers

2502 |  | Categorisation

2503 |  | Categorisation

2504 |  | Categorisation

2505 |  | Categorisation

0105 |  | Abbreviated number category

2801 |  | Short no open for tenant

This command is only accessable via BMS:

1005 |  | Abbreviated number category for trunks

## Equipment

None.

Revision: G © Ericsson Enterprise 2003