3 Definitions and abbreviations
23.0663GPPRelease 17Stage 2Support of Mobile Number Portability (MNP)Technical realizationTS
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply.
donor network: subscription network from which a number is ported in the porting process. This may or may not be the number range holder network
interrogating network entity: entity that submits a non-call related signalling message to interrogate the HLR
interrogating network: network in which the interrogating network entity resides
mobile number portability: ability for a mobile subscriber to change mobile network subscription within the same country whilst retaining his/her original MSISDN(s). Additional regulatory constraints apply in North America.
mobile number portability information: an information set relevant to Mobile Number Portability for a mobile subscriber. It may contain one or more of Routeing Number, generic IMSI MSISDN,and Number Portability Status.
network operator: GSM PLMN operator
non-call related signalling message: all signalling messages where the MSISDN is used to route the message on SCCP level except MAP SRI without OR parameter set (i.e. SRI_SMS, SRI for SOR, Send_IMSI, CCBS_Request etc)
North American GSM Number portability: the ability for a subscriber to change subscription between North American GSM networks and other subscription networks within a regulated geographical area within North America.
number portability database: operational database (used in real time at call set-up) which provides portability information
number portability location register: internal MAP application terminating function (MATF) in the MNP-SRF network entity with an (unspecified) interface with a NPDB
number portability status: information indicating the status of number portability for a mobile subscriber. It may be one of: own number ported out, own number not ported out, foreign number ported in, foreign number ported to a foreign network, foreign number not known to be ported
number range holder network: network to which the number range containing the ported number has been allocated
originating network: network where the calling party is located
portability domain: set of GSM PLMNs in a country between which MSISDNs may be ported or a set of North American GSM Mobile networks and other subscription networks within a regulated geographical area within North America
portability network: a PLMN or ,in North America, a PSTN or an ISDN network
portable number: E.164 number that can be ported between networks in one nation
ported number: portable number that has undergone the porting process
ported subscriber: subscriber of a ported number
porting process: description of the transfer of a number between network operators
recipient network: network that receives the number in the porting process. This network becomes the subscription network when the porting process is complete
routeing number: routeing number is the data stored against the ported number or the non-ported number in the Number Portability Database. The routeing number points to Subscription Network or Recipient Network
service key: service Key can identify to the entity holding the Number Portability Database that the service logic for Mobile Number Portability should apply. The Service Key value for Mobile Number Portability is administered in the MSC, and is passed transparently to the entity holding the Number Portability Database
service provider: entity that offers service subscriptions to individual subscribers and contracts with a network operator to implement services for a specific MSISDN. A service provider may contract with more than one network operator
service provider portability: transfer of numbers between two unique Service Providers
subscription network: network with which the customer’s Service Provider has a contract to implement the customer’s services for a specific MSISDN
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 the present document, the following abbreviations apply:
CCBS Call Completion on Busy Subscriber
CCF Call Completion Function
CdPA Called Party Address
CgPA Calling Party Address
CNAP Calling Name Presentation
CNDB Calling Name Database
CRMNP Call Related Mobile Number Portability
FCI Forward Call Indicator
GAP Generic Address Parameter
GMSC Gateway MSC
GMSCB The GMSC in HPLMNB
GTT Global Title Translation
HLR Home Location Register
HPLMNB The subscription network of the B subscriber
IAM Initial Address Message
IDP Initial Detection Point
IE Information Element
INE Interrogating Network Entity
IF Information Flow
IPLMN Interrogating PLMN
MATF MAP application Terminating Function
MNP Mobile Number Portability
MNP-SRF Signalling Relay Function for support of MNP
MSA Mobile Station of the A subscriber
MSB Mobile Station of the B subscriber
MSC Mobile-services Switching Centre
MSISDN Mobile Station International ISDN Number
MSRN Mobile Station Roaming Number
NANP North American Numbering Plan
NAGNP North American GSM Number Portability
NPDB Number Portability Database
NPLMN The number range holder network of the B subscriber
NPLR Number Portability Location Register
OQoD Originating call Query on Digit Analysis
PLMN Public Land Mobile Network
QoHR Query on HLR Release
RN Routeing Number
SMS Short Message Service
SOR Support of Optimal Routeing
SRI Send Routeing Information
STP Signalling Transfer Point
TQoD Terminating call Query on Digit Analysis
TT Translation Type
VMSC The Visited MSC
VMSCB The VMSC of the B subscriber
Further GSM related abbreviations are given in 3GPP TS 21.905: "3G Vocabulary".