C.6 Handling of MAP to ISUP mapping (informative)

03.663GPPStage 2Support of GSM Mobile Number Portability (MNP)TS

Different configurations can be possible within a portability domain depending on the versions of MAP and ISUP protocols being used. The following clauses describe possible interworking scenarios.

C.6.1 Mapping direction: ISUP to MAP

The GMSC always constructs the Send Routeing Info message using the MSISDN. If the incoming IAM corresponds to a ported number the GMSC shall retrieve the MSISDN from the corresponding parameter in the IAM.

C.6.2 Mapping direction: MAP to ISUP

In MAP SRIack messages from NPLR, MAP versions 1 and 2 only support concatenate addressing for MNP. If MSISDN parameter is present in the SRIack, this means that separate addressing is used in MAP; this is only possible if MAP version 3 is used. MAP version 3 can also support concatenate addressing. In all cases, when a Routeing Number is returned, it is included in the MSRN parameter of the SRIack.

Regardless of how MAP is established, the possible mappings of the parameters in ISUP IAM message is one of these 4 options (see also [7]):

  1. CdPN parameter includes only the MSISDN
  2. CdPN parameter includes both RN and MSISDN concatenated
  3. CdPN parameter includes the MSISDN and NRN parameter includes the Routeing Number
  4. CdPN parameter includes the Routeing Number and CDN parameter includes the MSISDN

In all cases, the method to transport the routing number in the IAM depends on the interfaces agreed by the operators in the portability domain.

Annex D (informative):
Status of Technical Specification GSM 03.66

This annex lists all changes made to the present document since its initial approval by the ETSI committee, SMG.

SMG#

Tdoc

CN2

Tdoc

VERS

CR

Phase

CAT

SUBJECT

New

Version

s29

P99-458

N2-99282

7.0.0

A001r1

R98

F

Alignment between 03.66 Part one and Normative Annex C Description of call related functionality

7.1.0

s29

P99-458

N2-99283

7.0.0

A002r1

R98

C

Editorial clarifications and alignments

7.1.0

s29

P99-458

N2-99284

7.0.0

A003r1

R98

F

Routeing conventions in a Portability Cluster

7.1.0

s29

P99-458

N2-992671

7.0.0

A004r1

R98

F

Adding of MNP indicator to the SRI ack

7.1.0

s29

P99-458

N2-99672

7.0.0

A005

R98

F

Corrections on MNP

7.1.0

CN#05

NP-99302

N2-99948

7.1.0

A006r1

R98

F

Harmonisation of terminology

7.2.0

CN#05

NP-99302

N2-99870

7.1.0

A007

R98

F

Proposed changes to B.4.2 Delivery of SMS to a Non-ported Number – Direct Routeing – MNP-SRF acts as Higher-level Relay

7.2.0

CN#05

NP-99302

N2-99D08

7.1.0

A009r1

R98

F

Clarification of NPLR functionality in not known to be ported case

7.2.0

s30

Version approved by SMG#30

7.2.0

CN#07

NP-000072

N2B000432

7.2.0

A014r2

R98

D

Result of Public Enquiry 9953

7.3.0

7.3.0

Update to Version 7.3.1 for Publication

7.3.1