3 Definitions and abbreviations

22.0663GPPService descriptionStage 1Support of Mobile Number Portability (MNP)TS

3.1 Definitions

For the purposes of this specification the following definitions apply:

number range owner network: The network to which the number range containing the ported number has been allocated.

directory number: any E.164 dialable number assigned to a wireline or a wireless subscriber. A DN can be a 10-digit number in the context of the North American Numbering Plan (without a country code) or up to 15 digits for an international number(country code included).

donor network: The subscription network from which a number is ported in the porting process. This may or may not be the number range owner network.

mobile number portability: The ability for a mobile subscriber to change digital mobile subscription network within the same country retaining their original DN(s). Additional regulatory constraints apply in North America.

network operator: A PLMN operator.

North American GSM number portability: the ability for a subscriber to change subscription between North American GSM networks and other subscription networks within an FCC regulated geographical area within North America

originating network: the network where the calling party is located.

ported number: Is a MSISDN that has undergone the porting process.

ported subscriber: The subscriber of a ported number.

porting process: A description of the transfer of a number between network operators.

recipient network: The network which receives the number in the porting process. This network becomes the subscription network when the porting process is complete.

service provider: An entity which offers service subscriptions to individual subscribers and contracts with a network operator to implement services for a specific DN. A service provider may contract with more than one network operator.

service provider portability: The transfer of numbers between two unique Service Providers.

subscription network: The network with which the customer’s Service Provider has a contract to implement the customer’s services for a specific DN.

NOTE: The term "recipient network" is used during the porting process. The recipient network becomes the "subscription network" after the completion of the porting process.

3.2 Abbreviations

For the purposes of this specification the following abbreviations apply:

DN Directory Number

IMPI IP multimedia CN subsystem Private Identity

MMI Man Machine Interface

MNP Mobile Number Portability

MSISDN Mobile Station ISDN number

NAGNP North American GSM Number Portability

PLMN Public Land Mobile Network

SIM Subscriber Identity Module

USIM Universal Subscriber Identity Module

Further related abbreviations are given in TR 21.905 [1].