The private numbering plan is a customized plan for business group customers. A business group could be assigned with many numbering plans and all subscribers belonging to that business group could be covered by different Private numbering plan of that business group. A PNP (Private Numbering Plan) is used in a private network by subscribers belonging to either a Tenant, Business, or VPN group. A single Lotus Sametime Unified Telephony supports up to 999 PNPs.
PNP Number Types
The PNP defines 3 types of numbers:
Local Number: The local number (or subscriber number) must always be dialed in its entirety. The first few digits in the local number typically indicate smaller geographical areas or individual telephone exchanges. In mobile networks they may indicate a network provider in case the area code does not. Callers from a number with a given area/country code usually do not need to (but optionally may) include the particular area/country code in the number dialed, which enables shorter "dial strings" to be used. Devices that dial phone numbers automatically can include the full number with area and access codes, since there is no additional annoyance related to dialing extra digits..Figure 1. Private Numbering Plan
RN (Regional Number): The regional number is a particular form of a PNP Number which is unambiguous in the region concerned.
A Region is the entire domain or a sub-domain of a PNP but does not necessarily correspond to a geographical area of a PISN.
Complete Number: A number which is unambiguous in the entire PNP, i.e. which corresponds to the highest regional level employed in that PISN (Private Integrated Service Network).
Structure of Numbers
Depending upon the customer's wishes, 3 levels of private numbering plans are possible:
L0 private numbering plan: no L1 or L2 level numbers exist in this type of numbering plan. Normalized numbers are L0 numbers
L1 private numbering plan: no L2 level numbers exist in this type of numbering plan. Normalized numbers are L1 numbers.
L2 private numbering plan: Normalized numbers are L2 numbers
A private numbering plan administrator must define an L1 code for each L2 private numbering plan number. This means that for an L2 private numbering plan, all numbers within the private numbering plan must have an L2 code and an L1 code defined. Equally so, for an L1 private numbering plan, all numbers within the private numbering plan must have an L1 code defined.
A PNP consists of digits that are grouped to identify specific elements used for identification, routing and charging capabilities to identify countries, national destinations, and subscribers. In a PNP, these elements identify the locations and stations. Additional PNPs are useful for different locations within one BG (Business Group).
BGs create their own individual PNPs based on the information provided in global translation and routing.
The PNP is a customized plan for the BG customers. A BG could be assigned with many NPs (Numbering Plans), and all subscribers belonging to that BG could be covered by different PNPs of that BG.
An individual subscriber belongs to a BG and uses the group's NP by default.
If a group is not assigned to a specific NP, the default NP in the system is used. If the default NP is used, the subscriber must use the default PAC (Prefix Access Code), destinations and E.164 NP.
PNP Configuration data
The PNP (i.e. the NP for a specific BG) provides the following configuration data categories:
Parent topic: Numbering Plan