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1、 TIA DOCUMENT TIA/EIA-41-D Enhancements for Wireless Number Portability Phase II Addendum 1 TIA-756-A-1 (Addendum No. 1 to TIA-756-A) SEPTEMBER 2002 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Association represents the communications sector of Copyright Telecommunication
2、s Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTICE TIA Engineering Standards and Publications are designed to serve the
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6、ndard (ANS). TIA documents shall be reviewed on a five year cycle by the formulating Committee and a decision made on whether to reaffirm, revise, withdraw, or proceed to develop an American National Standard on this subject. Suggestions for revision should be directed to: Standards & Technology Dep
7、artment, Telecommunications Industry Association, 2500 Wilson Boulevard, Arlington, VA 22201 U.S.A. (From Project No. 3-4186-AD1, formulated under the cognizance of the TIA TR-45.2 Subcommittee on Wireless Intersystem Technology.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2002 Standards &
8、 Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) or s
9、earch online at http:/www.tiaonline.org/standards/search_n_order.cfm All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproducti
10、on or networking permitted without license from IHS -,-,- PLEASE! DONT VIOLATE THE LAW! This document is copyrighted by the TIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a license agreement. For inf
11、ormation, contact: Global Engineering Documents 15 Inverness Way East Englewood, CO 80112-5704 U.S.A. or call U.S.A. and Canada 1-800-854-7179, International (303) 397-7956 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User
12、=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY The document to which this Notice is affixed has been prepared by one or more Engineering Committees of the Telecommunications
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17、IRE INTO, THE SCOPE OR VALIDITY OF ANY CLAIMS OF IPR. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NON-INFR
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19、NY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BA
20、SED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY
21、 TIA WITHOUT SUCH LIMITATIONS. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- Wireless Number Po
22、rtabilityTIA-756-A-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 iContents C ONTENTS Revision Historyii Changes to Assumptions.1 Assumptions.1 Copyright Telecommunications I
23、ndustry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-756-A-1Wireless Number Portability Revision Historyii 1 2 3 4 5 6 7 8 9 10
24、11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 R EVISION H ISTORY RevisionDateRemarks 0March 1998Initial Publication (WNP Phase I) ADecember 1998(WNP Phase II) Addendum 1September 2002NP Queries fo
25、r Emergency Services Calls Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- Wireless Number Portab
26、ilityTIA-756-A-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Assumptions1Changes to Assumptions C HANGES TO A SSUMPTIONS This Addendum identifies the changes to the TIA/EIA/
27、IS-756-A Assumptions section that are needed to support Number Portability (NP) Query for emergency services calls that have portable called numbers. ASSUMPTIONS (See TIA/EIA/IS-756-A, page viii) The following items are basic understandings used during the development of this document: a.MobileDirec
28、toryNumbers MDNs are the only wireless service providers E.164 numbering resource that may be ported (e.g., Temporary Local Directory Numbers TLDNs, Remote Feature Control RFC ports, Roamer Ports are not ported). b.This Number Portability document considers only “circuit mode calls.” c.Automatic Cod
29、e Gapping (ACG) has not been addressed in this document. d.Short Message Service (SMS) has not been addressed in this document. e.Feature interaction support (e.g., Calling Name Presentation CNAP) has not been addressed in this document. f.WNP impacts on message accounting (e.g., TIA/EIA-124 ) recom
30、mendations have not been addressed in this document. g.WNP impacts to interface standards (e.g., TIA/EIA-93 ) have not been addressed supported in this document. h.Only limited location portability is supported consistent with ANSI.T1.660 . The designation of portable numbers 1 may vary between syst
31、ems. Establishing the geographical areas within which Number Portability (NP) must be supported is beyond the scope of this document. i.Number Portability DataBases (NPDBs) do not maintain records for numbers which are not ported. j.NP queries are performed by an MSC for all calls to numbers recogni
32、zed as portable numbers, except for calls to portable numbers that are assumed to be not ported (see “a” above). NP queries are not performed for calls to operator services including calls dialed as “0+” calls. NP queries are not performed for emergency services (e.g., 9-1-1) calls. k. TIA/EIA/IS-75
33、1 MobileStationIdentity (MSID) (i.e., InternationalMobileStationIdentity IMSI or MobileIdentificationNumber MIN) is not portable. l.Public Switched Telephone Network (PSTN) directory numbers may be portable. m.The HLR operations (i.e., messages) have not been modified to support WNP. No new paramete
34、rs, new parameter fields or new parameter values have been added to existing HLR operations and no support is provided for HLR initiated Number Portability queries. 1 See Section 3.1 (page 3) for defi nition of terms. Copyright Telecommunications Industry Association Provided by IHS under license wi
35、th EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-756-A-1Wireless Number Portability) Changes to Assumptions2Assumptions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
36、 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 n.An MSC which is Number Portability capable and has ISUP facilities supports ANSI.T1.660 on those facilities. o.Call looping should be avoided. However, no mechanism is provided by thi
37、s standard to accomplish that objective. p.Roamer ports allow calls only to MSs known to be present in that system. NP queries are not performed for Roamer Port calls unless the called MSs HLR redirects the call from the MS to a portable number. q.ANSI ISUP Release Cause value 26, Misrouted call to
38、ported number , is supported to identify mismatches between the NPDB and HLR. Refinements to the use of Cause value 26 are for further study. r.An MSC knows which DN ranges are portable, but an MSC does not necessarily know which individual MDNs have been ported. s.When the MSC is not able to obtain
39、 portability information from the NPDB, the MSC will default route the call. t.When a call is default routed to the donor MSC, and that MSC attempts to deliver the call, the MSC performs a NumberPortabilityRequest (NPREQ) query to do so. u.In a Number Portability environment the MobileIdentification
40、Number (MIN) and MobileDirectoryNumber (MDN) may be different. v.Only the MDN shall be used by the Serving MSC in call services to identify the subscriber externally (e.g., Emergency Services call back number, Automatic Number Identification). The Serving MSC shall not, in the absence of a successfu
41、l HLR response, make any assumption as to the equivalence of an MDN and a MIN. w.As this standard does not require the HLR to distinguish vacant numbers from numbers which have ported out, implementation specific HLR operations (e.g., signaling optimizations, forwarding number validation) may need t
42、o be modified so that service is not impacted. The required modifications are not addressed in this document. x.An NP capable MSC may support an ISUP trunk group option for signaling the ported number instead of the LRN as the called party number for outgoing calls sent on that trunk group. y.Transi
43、t call handling (e.g., tandem calls) has not been addressed in this document. z.“Aging” and “Number Pooling” of MDNs have not been addressed in this document, including their implications on the use of ANSI Cause value 26. Copyright Telecommunications Industry Association Provided by IHS under licen
44、se with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, Use
45、r=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:04:11 MDTNo reproduction or networking permitted without license from IHS -,-,-