# Internal numbering plan

The internal numbering plan stores all the internal call numbers, sorted by category. You can open, search for and process call numbers here.

## Rules for the internal numbering plan

- Numbers are always interpreted starting from the left..

- The various categories must be unequivocally separated through number allocation.. If, for example, the operator console has been allocated number 11, the numbers 11n cannot be allocated to any other categories. If, however, the operator console has been allocated the number 111, the numbers 112 to 119 can be allocated other categories.

- Numbers within a category do not necessarily have to constitute a coherent range; instead, they can be spread over the entire number range (e.g.: user 200, 404, 550, 551, ...). However, for the purposes of clarity, we recommend that you define coherent ranges.

- The number length is variable and may consist of 1 to 12 digits. Numbers with more than 12 digits will be truncated from the right.

## Numbering plan categories

The numbering plan is structured according to function categories. The allocation of categories to numbers and number ranges can be freely configured, provided a number of rules are observed. The defaults depend on the sales channel.

## Exchange access category

A call can be transmitted to the public network by selecting a prefix from one of the exchange access categories.

The cost type (Business, Private), cost centre (cost centre selection) or route (route selection) is determined according to the prefix selected.

Route selection prefixes are the internal call numbers of the routes.

Route selection can also be used for routing in the private leased-line network.

Table 1. Categories for the exchange access (with standard call numbers for Switzerland)
Category | Name
Name | Explanation | Call number | Number range | Explanation
Exchange access, business | Call charges are added up on the Business Telephony or Business Data Service cumulative counter. | 0 | <ext. call No.> | Prefix, truncated before dialling out into the network
Exchange access, private | Call charges are added up on the Private cumulative counter. | 10 | <ext. call No.> | Prefix, truncated before dialling out into the network
Cost-centre selection | The call charges are explicitly allocated to the selected cost centre. | 13 | <CC No.> <ext. call No.> | Prefix, truncated together with the CC No. before dialling out into the network
Route selection | Routes the outgoing call via the selected route | 170 to n | <ext. call No.> | Prefix, truncated before dialling out into the network

## Abbreviated dialling category

Abbreviated dialling numbers (public contracts, public phone book) facilitate the exchange traffic for frequently used call numbers. They can also be used to activate function codes more quickly.

An internal or external call number or a function code and a name can be stored under any abbreviated dialling number

When an external destination is dialled via an abbreviated dialling number the call number stored bypasses the digit barring and the exchange access authorisation.

When an external destination is dialled by name via an abbreviated dialling number, only the exchange access authorisation is bypassed.

If an external call number is stored, the exchange access prefix must also be entered at the same time. Prefix and number must be separated with a hyphen. The hyphen ensures that when the number is dialled via a line key, the exchange access prefix is truncated.

Only the front portion of a call number can be entered at any time. The rear portion must then be suffix-dialled manually. Example:The number 0-001212 and the name "NY" (for New York) are stored under the abbreviated dialling number 7500. Any user who wants to call Manhattan, New York, simply dials “NY” by name, then adds the local call number.

Table 2. Category abbreviated dialling (with standard numbers for Switzerland)
Category | Name
Name | Explanation | Call number | Explanation
Abbreviated dialling | Other, user-definable call numbers are stored under these call numbers | 7000 to 7999 |

## Emergency number category

A total of 10 emergency numbers can be created in the internal numbering plan. The emergency numbers are used to quickly dial a call number defined at a certain emergency destination. When an emergency number is dialled one of the 3 destination numbers is dialled based on the switch position of the assigned switch group.

All internal emergency numbers dial the emergency destination, defined at the node. (Exception: An emergency destination is assigned to a terminal, see also notes below).

50 emergency destinations can be defined. The default value is emergency destination 1.

notes:

- In a AIN the applicable node is dependant on the terminal type:

  For IP system phones and SIP phones it is the master node.

  For System DECT phones it is the node on which the phone is currently located.

  For analogue and digital phones it is the node to which the phone is connected.

- An emergency destination can also assigned to a terminal. If an emergency number at such a terminal is dialled, one of the destination numbers of this emergency destination is dialled, depending on the switch position of the assigned switch group. An emergency destination assigned to a terminal has always priority.
- When an external destination is dialled via the emergency number the digit barring and the exchange access authorisations are bypassed.
- If an external destination with exchange access prefix code is specified, it is important to ensure that a route is assigned to each user.
- Calling an emergency numbers defined in the internal numbering plan is completely different than calling a number from the public emergency number list (see also "Emergency service support").

Table 3. Category emergency call number (with standard numbers for Switzerland)
Category |  | Name |
Name | Explanation | Call number | Explanation
Emergency number | This call number is assigned to any of the emergency destinations under which three destination numbers are stored (depending on the switch group and switch position). | 12 | Up to 10 emergency numbers can be defined, all of them are assigned to any of the emergency destinations.

## User category

The call numbers within this category are assigned one or more terminals. The following terminal types are supported:

- IP system phones (hardphones and softphones)

- Digital system phones (DSI / DASL)

- Cordless DECT phones (system phones or GAP phones)

- Analogue terminals

- SIP system phones (Mitel SIP)

- SIP phones or SIP terminals by other manufacturers (standard SIP)

- BluStar phones (hardphones and softphones)

- Integrated mobile/external phones (with assigned internal call numbers for incoming and outgoing calls).

- Integrated mobile phones with user-friendly Mitel Mobile Client application (linked to the communication server via a MMC Controller).

- Virtual phones (behave like analogue internal phones, except that they do not occupy any port since no hardware is available).

- ISDN terminals on the BRI-S bus (phones, PC cards)

Table 4. Call number - Category user (with standard call numbers for Switzerland)
Name | Explanation | Call number
User | Call numbers of the internal users The users are assigned one or more terminals. | 20 to n1

## Other categories

The table below contains a short description of the other call number categories

Table 5. Further call number categories (with standard call numbers for Switzerland)
Category | Number / Number Range
Name | Explanation | Call number | Number range | Explanation
Operator phone | The PC operator console can be reached under this call number. | 11 | – |
Door intercom | Selects the door intercom | 851 | – | Door intercom
Control output | Freely configurable control outputs for switching external equipment | 853 to 856 | – |
User group | These call numbers can be used to dial user groups internally | 860 to n | – |
MMCC | Internal call number of the AMC Controller | 897 | – |
Remote maintenance access PPP | Selects the configuration interface via PPP | 898 | – |
Voice mail | Internal call number of the standard voice mail system. To activate a mailbox a call is rerouted to this call number. | 899 | – | Only one voice mail no. can be created.
Call Distribution Elements | Call distribution elements link direct dialling numbers with internal call numbers. A call distribution element can be assigned its own internal call number. | Not allocated | – | If your communication server has call distribution elements with a configured call number, they are displayed here.
PISN user | a) Internal users in a networked system. b) External users which are displayed as internal users and can be dialled as internal users. | Not allocated | – | You can open and manage PISN users in the PISN users view.
Own region prefix | Level 1 prefix for the region allocation of a PINX in the PISN | Not allocated | – | Prefix, truncated on detection
* substitute | Substitute digit for pulse dialling sets without *key | Not allocated | <Function code> |

## Creating call numbers

To add a new call number, click New. Enter the new call number, choose the category and store the new entry by clicking Apply.

Note the following points in this connection:

- In some categories, you can open a call number range instead of one number.

- If you add a call number under the user category, open a user at the same time. On the other hand, an internal call number is automatically added if you open a new user.

- You can also open abbreviated dialling numbers in the contacts (Contact / General).

- Emergency numbers and the *-substitute number are created directly in the numbering plan.

- You do not have to create the call numbers for the other call number types, unless you previously deleted them. They are either permanently available for each communication server or are automatically added with the necessary hardware expansion (e.g. door intercoms or control outputs).

- Call numbers cannot be added in standard mode for all categories.

## Changing a call number or number range

A call number or call number range can be changed directly in the entry fields. Click Apply to save the change.

## Editing call number properties

To edit a call number’s properties, click on the call number. Save your changes by clicking the Apply button.

## Deleting call numbers

When you delete a user's internal call number, only the call number is deleted, not the user himself. Switch to the user administration to reassign the user a call number or to delete the user.

Abbreviated dialling numbers are deleted in the phone book.

Emergency numbers and the *-substitute number are deleted directly in the numbering plan:

1. Click the Delete button.

   Control boxes are displayed on the left side.

2. Check the boxes of the emergency number you want to delete, and click the Delete button once again.

Parent topic: Incoming call routing
1 Depends on the number of terminal interfaces installed.
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