Numbering plan
51
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
3. 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. The default settings depend on the
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 operator console has been allocated number 11, the num-
bers 11n cannot be allocated to any other categories. If, however, the operator con-
sole 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 coher-
ent 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.
Tab. 12
Categories in the system's numbering plan with allocated numbers
Category
Number / Number Range
Name
Explanation
Number
1)
Number range
Explanation
Exchange access, Busi-
ness
Call charges are added up on
the
Voice calls, business
or
Data calls business
cumulative
counter.
0
<ext. call No.>
Prefix, truncated
before dialling out
into the network
Exchange access, Private
Call charges are added up on
the
Voice/Data calls, private
cumulative counter.
10
<ext. call No.>
Prefix, truncated
before dialling out
into the network
Transfer
The operator console is stored
under this number
11
–
Emergency number
This number is assigned an
emergency number destina-
tion under which three desti-
nation numbers are stored
(depending on the switch
group and switch position).
12
–
Up to 10 emer-
gency numbers
can be defined, all
of them assigned
the same emer-
gency number
destination.
