BusinessPhone Communication Platform 5.1
Facilities

## Directory Numbers

## Definition

A directory number is a number that is assigned:

- A line position, that is an extension or a trunk
- A facility group number, ACD-number etc.

Directory numbers can have 1, 2, 3 or 4-digits. Directory numbers can be freely selected as long as they are not incompatible.

## Use

All persons assigned a directory number can be called from extensions in the system.

All directory numbers can be assigned a name.

Calls to internal directory numbers via the public network or private network have the possibility to be translated into DDI numbers by the individual number translation table.

For further information please refer to the document Individual Number Translation on page 1.

See facility description Telephone Directory (481/155 34-ASB 150 02 Uen).

## Operation

See respective facility description (xxx/155 34-ASB 150 02 Uen).

## Capacity

Each facility or hardware unit can be assigned one directory number only.

## Limitations

Directory numbers must not be incompatible, for example, directory numbers 200 and 2000 cannot exist at the same time.

## Programming

On initiation of the system extensions and trunks are assigned directory numbers automatically.

Extensions are assigned numbers from 200 and upwards.

Trunks are assigned numbers from 700 and upwards. All trunks are placed in one route and are assigned directory number 0.

If the system has an OPERATOR, directory number 9 will be assigned as internal call number to the OPERATOR queue.

See respective facility description (xxx/155 34-ASB 150 02 Uen).

Assigned directory numbers can be changed.

### To change directory numbers of extensions

5601 |  | Directory number

Using this command it is possible to allot the required number to an extension's line position.

If this line position already has a directory number it will be overwritten. Command 5902 will read the directory number of a certain line position.

However, references to previous numbers will remain. The references are to be deleted or replaced by the new number.

5602 |  | Alter an extension number

With this command it is possible to change an extension's directory number.

If one wishes to change the number to a new number, that is in conflict with the old number, this cannot be executed directly. In such a case first replace the number with a random free number and then replace this number with the desired number.

5603 |  | Change of line position for extension

Is used when two extensions are to change position and retain their directory numbers as well as all programmed categories and functions. The display shows “SWAP EXTENSION NO 5603”.

Press Enter and enter the extension numbers of the extensions that should be exchanged.

5604 |  | Change of number series for extension

Alter the number series for an extension number. This command is to be used only if you wish to alter the entire existing number series on system start. Use the command in an existing system.

Please enter the lowest extension number of the new number series. The system will then calculate the difference to the existing lowest extension number and, based on this result, will change all the telephone numbers of the number series.

For other directory number changes see the following functions:

- ACD-group
- Background music
- Trunk line
- Fictive number
- PBX-hunting
- Music-on-hold
- Voice message
- Answer group
- Operator
- Route
- Paging
- Common short numbers

### Display number series

Using this group of commands you can read out which directory numbers that are used in the system.

#### 5801-5813: Reading of numbering series

This is a group of commands by which it is possible to read which directory numbers are used in the system.

All commands in the group are presented and administered in the same way.

5801 |  | Show total survey

5802 |  | Show extension

5803 |  | Show trunk

5804 |  | Show route

5805 |  | Show PBX-group

5806 |  | Show background music

5807 |  | Show ACD-group

5808 |  | Show pick-up group

5809 |  | Show voice answer

5810 |  | Show FN series

5811 |  | Show operator

5812 |  | Show paging

5813 |  | Show abbreviated number series for abbreviated numbers

#### Menu keys

backward |  | Step to previous page

forward |  | Step to next page

pf_3 |  | Erases a displayed error message

return |  | returns to previous display image

If the directory numbers are in numerical order the interval with the lowest and highest numbers separated by a hyphen will be shown.

Example: 2000-2020

If the directory numbers are dispersed these are shown separated by a comma.

Example: 2234,2241

5901 |  | Directory number-facility

5902 |  | Line position-directory number

#### Telephone type/trunk type table for commands 5901 and 5902

00 |  | = No telephone

01 |  | = ECONOMY (DBC 751)

02 |  | = STANDARD (DBC 752)

03 |  | = EXECUTIVE (DBC 753)

06 |  | = LINE BOX

07 |  | = STANDARD (DBC 755)

08 |  | = OPERATOR’s Console (DBC754)

12 |  | = GUEST PHONE (DBC 751H)

15 |  | = Analogue telephone

20 |  | = BASIC (DBC 199)

21 |  | = ECONOMY (DBC 601)

22 |  | = STANDARD (DBC 631)

23 |  | = EXECUTIVE (DBC 662)

24 |  | = OPERATOR’s Console (DBC 663)

25 |  | = STANDARD (DBC 202, DBC 212)

26 |  | = EXECUTIVE (DBC 203)

27 |  | = EXECUTIVE and 1 KEY PANEL

30 |  | = EXECUTIVE and 2 KEY PANELS

35 |  | = ECONOMYplus (DBC 201,DBC 211)

36 |  | = EXECUTIVE (DBC 213)

37 |  | = OPERATOR’s Console (DBC 214)

38 |  | = BASIC (DBC 210)

65 |  | = Trunk

67 |  | = DID-trunk

#### Menu keys

backward |  | Step to previous page

forward |  | Step to next page

pf_3 |  | Erases a shown error message

return |  | returns to previous display image

## Equipment

None

Revision: F © Ericsson Enterprise 2003