ISO-13242-1997.pdf
《ISO-13242-1997.pdf》由会员分享,可在线阅读,更多相关《ISO-13242-1997.pdf(20页珍藏版)》请在三一文库上搜索。
1、INTERNATIONAL STANDARD ISO/IEC 13242 First edition 1997-06-l 5 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Route Restriction Class additional network feature Techn
2、ologies de /information - T or c one or more RAC values that are not entitled to use the facility. Some PISNs may treat RAC values as levels, whereby each RAC value other than the lowest numbered RAC value is entitled to use all facilities that the value below can use, plus some specific additional
3、facilities. Any PINX implementation shall be capable of providing ANF-RRC in this way and some PINX implementations may be capable of providing ANF-RRC only in this way (see annex A). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Techni
4、cal Standards 1/9972545001 Not for Resale, 04/19/2007 22:35:01 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 13242: 1997(E) OISO/IEC 6.2.2 Normal procedures 6.2.2.1 Activation/Deactivation/Registration/Interrogation ANF-RRC shall be permanently activated. No infor
5、mation needs to be registered within the PISN for this ANF, and therefore interrogation is not applicable. 6.2.2.2 Invocation and operation An RAC shall be associated with each call in accordance with the calls source. A call shall not use a facility that is controlled by ANF-RRC if, according to th
6、at facilitys FRC, the calls RAC value is not entitled to use that facility. NOTE - A call that cannot be progressed because its RAC value does not allow it to access facilities needed for routeing can be released in accordance with ISO/IEC 11574. Other possible actions in this situation are outside
7、the scope of this International Standard. 6.2.3 Exceptional procedures 6.2.3.1 ActivationfDeactivationlRegistrationhterrogation Not applicable. 6.2.3.2 Invocation and operation Not applicable. 6.3 Interaction with other Supplementary Services and ANFs Interactions with other supplementary services a
8、nd ANFs for which PISN Standards were available at the time of publication of this International Standard are specified below. 6.3.1 Calling Line Identification Presentation (SS-CLIP) No interaction. 6.3.2 Connected Line Identification Presentation (SS-COLP) No interaction. 6.3.3 Calling/connected L
9、ine Identification Restriction (SS-CLIR) No interaction. 6.3.4 Calling Name Identification Presentation (SS-CNIP) No interaction. 6.3.5 Connected Name Identification Presentation (SS-CONP) No interaction. 6.3.6 Calling/connected Name Identification Restriction (SS-CNIR) No interaction. 6.3.7 Complet
10、ion of Calls to Busy Subscriber (SS-CCBS) No interaction. 4 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 22:35:01 MDTNo reproduction or networking permitted without license fr
11、om IHS -,-,- OISO/IEC ISO/IEC 13242: 1997(E) 6.3.8 Completion of Calls on No Reply (SS-CCNR) No interaction. 6.3.9 Call Transfer (S&CT) No interaction. 6.3.10 Call Forwarding Unconditional (SS-CFU) ANF-RRC can be used in the forwarding of a call as follows. The diverted call may use either the RAC a
12、ssociated with the calling user or the RAC associated with the diverting user. 6.3.11 Call Forwarding Busy (SS-CFB) As for SS-CFU (6.3.10). 6.3.12 Call Forwarding No Reply (SS-CFNR) As for SS-CFU (6.3.10). 6.3.13 Call Deflection (SS-CD) As for SS-CFU (6.3.10). 6.3.14 Path Replacement (ANF-PR) An RAC
13、 shall be associated with the new connection in accordance with the calls source. The new connection shall not use a facility that is controlled by ANF-RRC if, according to that facilitys FRC, the calls RAC value is not entitled to use that facility. 6.3.15 Call Offer (SS-CO) No interaction. 6.3.16
14、Call Intrusion (SS-CI) No interaction. 6.3.17 Do Not Disturb (SS-DND) No interaction. 6.3.18 Do Not Disturb Override (SS-DNDO) No interaction. 6.4 Inter-working considerations An RAC shall be associated with each incoming call from another network. This can either be a value supplied by the other ne
15、twork that supports an equivalent feature or a value assigned to the gateway. The ability to establish an outgoing call to another network can be treated as a facility that is controlled by ANF-RRC. When establishing an outgoing call to another network, the PISN may supply the other network with the
16、 calls RAC value if the other network supports an equivalent feature. 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 22:35:01 MDTNo reproduction or networking permitted withou
17、t license from IHS -,-,- ISOLIEC 13242:1997(E) OISO/IEC 6.5 Overall SDL Figure 1 contains the dynamic description of ANF-RRC using the Specification and Description Language (SDL) defined in CCITT Rec. Z. 100 (1988). The SDL process represents the behaviour of the PISN in providing ANF-RRC. Input si
18、gnals from the left represent primitives from the entity which invokes ANF-RRC to the entity which receives and acts on the RAC. 7 ANF-RRC stage 2 specification 7.1 Functional model 7.1.1 Functional model description The functional model shall comprise the following functional entities: FE1 RRC Init
19、iate FE2 RRC Execute 6 Determine RAC for Cd I Able to route that can be used with this RAC I Unable to route that can be used with this RAC Allow call to proceed Abort call I I (-Ii-) Figure 1 - ANF-RRC, Overall SDL Copyright International Organization for Standardization Provided by IHS under licen
20、se with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 22:35:01 MDTNo reproduction or networking permitted without license from IHS -,-,- OISO/IEC ISO/IEC 13242: 1997(E) The following functional relationship shall exist between these Fes: ra between FE1 and FE2 and bet
21、ween consecutive FE2s Figure 2 shows these FEs and their relationship. ra Figure 2 - Functional model for ANF-RRC 7.1.2 Description of functional entities 7.1.2.1 RRC initiate, FE1 This FE recognizes that a call is being established for which ANF-RRC is applicable and assigns an RAC to the call. It
22、also checks that any facilities needed for the initial routeing of the call are entitled to be used by a call with that RAC. If the call is allowed to proceed, it passes that RAC to the first FE2, if applicable. 7.1.2.2 RFtC execute, FE2 At the time of call establishment, this FE receives an RAC fro
23、m FE1 or the preceding FE2. It checks that any facilities needed for further routeing of the call are entitled to be used by a call with that RAC. If the call is allowed to proceed, it passes the RAC to the subsequent FE2, if applicable. 7.1.3 Relationship of functional model to basic call functiona
24、l model FE1 shall be collocated with the Originating CC, an Incoming Gateway CC, or a Transit CC. FE2 shall be collocated with the Terminating CC or Outgoing Gateway CC. In addition, an FE2 shall be collocated with each intermediate Transit CC. Figure 3 shows an example of the relationship with the
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ISO 13242 1997
链接地址:https://www.31doc.com/p-3776656.html