The System's Numbering Plan; Categories In The Numbering Plan - ASCOM Ascotel 2025 System Manual

ascom Ascotel 2025/2045/2065
2.2

The System's Numbering Plan

The system's internal numbering plan is the numbering plan used for a stand-
alone PBX or a PINX in a private network. The numbers entered in the numbering
plan are used both to dial up call destinations in the PBX and to execute control
functions. Call destinations and functions are grouped into categories.
The internal numbering plan:
• Assigns number ranges to the categories
• Allocates their numbers to call destinations and control functions, making
them obtainable and executable respectively
As far as the call destination numbers are concerned, the system's numbering
plan is a PNP-type numbering plan.
2.2.1

Categories in the Numbering Plan

The allocation of categories to numbers and number ranges can be freely config-
ured, provided a number of rules are observed. Initialization values vary from
country to country.
Rules for an Internal Numbering Plan
Numbers are always interpreted starting from the left.
The various categories must be unequivocally separated through number alloca-
tion. If, for example, the PC Operator has been allocated number 11, the numbers
11n cannot be allocated to any other categories. If, however, the PC Operator 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. subscribers
200, 404, 550, 551, ...). However, for the purposes of clarity, we recommend that
you define coherent ranges.
The number length is variable and can consist of 1 to 12 digits. Numbers with
more than 12 digits will be truncated from the right.
2.6 Numbering Plan HBT_20321104_02/B0_en