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.rs .\" Troff code generated by TPS Convert from ITU Original Files .\" Not Copyright ( c) 1991 .\" .\" Assumes tbl, eqn, MS macros, and lots of luck. .TA 1c 2c 3c 4c 5c 6c 7c 8c .ds CH .ds CF .EQ delim @@ .EN .nr LL 40.5P .nr ll 40.5P .nr HM 3P .nr FM 6P .nr PO 4P .nr PD 9p .po 4P .rs \v | 5i' .sp 1P .ce 1000 \v'3P' SECTION\ 3 .ce 0 .sp 1P .ce 1000 \fBINTERWORKING\ BETWEEN\ DIGITAL\ SUBSCRIBER\ SIGNALLING\fR .ce 0 .sp 1P .ce 1000 \fBSYSTEM\ No.\ 1\ AND\ SIGNALLING\ SYSTEM\ No.\ 7\fR .ce 0 .sp 1P .sp 2P .LP \fBRecommendation\ Q.699\fR .RT .sp 2P .ce 1000 \fBINTERWORKING\ BETWEEN\ THE\ DIGITAL\ SUBSCRIBER\ SIGNALLING\fR .EF '% Fascicle\ VI.6\ \(em\ Rec.\ Q.699'' .OF '''Fascicle\ VI.6\ \(em\ Rec.\ Q.699 %' .ce 0 .ce 1000 \fBSYSTEM\ LAYER\ 3\ PROTOCOL\ AND\ THE\ SIGNALLING\ SYSTEM\ No.\ 7\fR .ce 0 .sp 1P .ce 1000 \fBISDN\ USER\ PART\fR .ce 0 .sp 1P .LP \fB1\fR \fBGeneral\fR .sp 1P .RT .sp 1P .LP 1.1 \fIIntroduction\fR .sp 9p .RT .PP This Recommendation defines the interworking relationship between the layer\ 3 functions and protocol of Digital Subscriber Signalling System No.\ 1 (DSS\ 1) and the ISDN User Part functions and protocol of Signalling System No.\ 7. .PP The interworking between the above two signalling protocols typically may occur in an ISDN local exchange and is specified in the context of a typical call in a pure ISDN or mixed ISDN/non\(hyISDN environment. .RT .sp 1P .LP 1.2 \fIPurpose\fR .sp 9p .RT .PP The purpose of the Recommendation is: .RT .LP a) to define how the layer 3 protocol of DSS 1 and Signalling System No.\ 7 ISDN User Part protocol should be used in combination with call control functions, to support the basic bearer service; .LP b) to provide a logical bridge between the abstract signalling information flows, which are used in the description of ISDN services, and the corresponding messages and elements of procedure of the ISDN User\(hyNetwork Interface User Part protocols. .sp 1P .LP 1.3 \fIScope\fR .sp 9p .RT .PP This Recommendation is aimed at defining the interworking relationship between the call control protocol of the Digital Subscriber Signalling System No.\ 1 and the ISDN User Part of Signalling System No.\ 7. .PP The Recommendation defines in detail the relationship between signalling information conveyed via the Digital Subscriber Signalling System No.\ 1 protocol and similar signalling information conveyed via the ISDN User Part of Signalling System No.\ 7. The above relationship is described within the context of supporting the provision of basic bearer service for a call within an ISDN or mixed ISDN/non\(hyISDN environment. .bp .RT .sp 1P .LP 1.4 \fIRelationship to other Recommendations\fR .sp 9p .RT .PP This Recommendation forms part of a set of interlocking ISDN service and signalling Recommendations. Other members of this set include the following: .RT .LP \(em the operation of basic ISDN telephony teleservice and 64 kbitB/Fs bearer service, which is supported in part via the interworking of the ISDN signalling systems described herein, is defined in detail in Recommendation\ Q.71 (basic service stage\ 2 description); .LP \(em the signalling messages and elements of procedure of layer of the Digital Subscriber Signalling System No.\ 1 and the ISDN User Part of Signalling System No.\ 7 are defined in Recommendations\ Q.930/931 (I.450/451) and Recommendations\ Q.761\(hyQ.764 and Q.766, respectively. .sp 2P .LP \fB2\fR \fBMethodology\fR .sp 1P .RT .sp 1P .LP 2.1 \fIGeneral\fR .sp 9p .RT .PP This chapter describes the methodology used to model and define interworking between the ISDN User Part and layer\ 3 of Digital Subscriber Signalling System No.\ 1. The methodology is based on the layer service concepts prescribed by the Reference Model of Open System Interconnection (OSI) for CCITT Applications (Recommendation\ X.200) and uses the terms and conventions defined in Recommendation\ X.210 (OSI Layer Service Definition Conventions). .PP The methodology used is for description purposes only. It does not imply that this type of layering is essential in a real implementation. .PP The interworking model is described in \(sc\ 2.2. Subsequent sections identify and review the diagrams and tables utilized in describing the model, its functions and the signalling information transfers between the call control functional entities. .RT .sp 1P .LP 2.2 \fIInterworking model\fR .sp 9p .RT .PP The interworking model encompasses 3 functional entities, including call control, the incoming signalling system and the outgoing signalling system, where incoming or outgoing refers to the direction of call set\(hyup. The signalling system entities may represent either the ISDN User Part of the User Network Interface Protocol. .PP The call control entity acts as an intermediary between the ISDN access and network signalling protocols. It typically invokes local call processing decisions/actions as a result of receiving a primitive from one signalling system (e.g.\ incoming access). As a result of that processing, it may send a primitive to the same signalling system and/or another signalling system (e.g.\ outgoing network). Local call processing decisions/actions (e.g.\ routing and through connection) are independent of the type of signalling system used by call control entities to communicate with each other. .PP There are 4 types of primitives: .RT .LP a) Request: A primitive issued by a call control entity to invoke a signalling procedure and thereby transfer information to a peer entity. .LP b) Indication: A primitive issued by the signalling protocol to invoke a call control procedure or indicate that procedure has been invoked by the peer call control entity. .LP c) Response: A primitive issued by call control (if required), to indicate completion of a procedure previously invoked by an indication. .LP d) Confirm: A primitive issued by the signalling protocol to call control (if required) to indicate completion of a procedure previously invoked by a request from the same call control entity. .PP The descriptions of the incoming and outgoing signalling system functional entities are not part of this Recommendation but are provided in Recommendation\ Q.931 for Digital Subscriber Signalling System and in Recommendations\ Q.761\(hyQ.764 and\ Q.766 for the ISDN User Part. .bp .LP .rs .sp 15P .ad r \fBFigure 1/Q.699, p. 1\fR .sp 1P .RT .ad b .RT .sp 1P .LP 2.3 \fITime sequence diagrams\fR .sp 9p .RT .PP Time sequence or \*Qarrow\*U diagrams are provided to show the permitted temporal relationships between primitives and between primitives and signalling messages, and the time sequence of these relationships during the process of executing a call control procedure. The general format of an arrow diagram is shown in Figure\ 2/Q.699. .PP Due to the multiplicity of optional possibilities in both the ISDN User Part and the Digital Subscriber Signalling System protocols not all possible cases are shown in the arrow diagrams. The diagrams which are included represent a sample of typical situations. .PP Sequences of interactions are shown along vertical lines which represent increasing time in the downward direction. .PP Broken line arrows represent individual primitives and indicate their direction of propagation, i.e.\ to or from call control. .PP Solid line arrows represent signalling messages and indicate their direction of propagation, i.e.\ to or from the incoming or outgoing signalling system. .PP Wavy line arrows (\ \ ), if present, represent tones or announcements sent inband. .PP For call control the following symbols are used between vertical lines to indicate the relationship between the incoming and outgoing primitives (e.g.\ between B\ indication and B\ response) and possibly a call control action taken, where it is necessary to indicate clearly a particular function that is invoked by a received primitive. .PP Solid line (\ \ ): the incoming and outgoing primitives are unconditionally related, i.e.\ the incoming primitive always triggers the sending of the outgoing primitive independent of the service context in which the incoming primitive is received. .PP Broken line (\ \ ): the incoming and outgoing primitives are related only in the service context considered. In a different service context this relationship may not exist. .PP Squiggly line (\ \ ): the reception of the incoming primitive and the transmission of the outgoing primitive are unrelated. This is to indicate that although these primitives are shown as adjacent in the arrow diagram, the generation of the outgoing primitive is unrelated to the receipt of the incoming primitive. .bp .RT .LP .rs .sp 10P .ad r \fBFigure, p. 2\fR .sp 1P .RT .ad b .RT .PP Where it is necessary to indicate the signalling system function performed on transmission or reception of a signalling message, the following symbols are shown below the concerned message: .LP .rs .sp 5P .ad r \fBFigure, p. 3\fR .sp 1P .RT .ad b .RT .LP .rs .sp 26P .ad r \fBFigure 2/Q.699, p. 4\fR .sp 1P .RT .ad b .RT .LP .bp .sp 1P .LP 2.4 \fIMapping tables\fR .sp 9p .RT .PP Mapping tables are provided to define the relationship between User\(hyNetwork Interface Protocol messages and information elements on the one hand and ISDN User Part messages and parameters on the other hand. .PP One table is provided for each User\(hyNetwork Interface Protocol message that maps onto an ISDN User Part message. The same table also specifies the mapping of elements of information which are carried by the concerned messages. .PP Elements of information that are of local significance only, i.e.\ are not mapped onto elements of information in the other signalling system, are not shown. .RT .sp 2P .LP \fB3\fR \fBInterworking specification for successful call set\(hyup\fR \fBprocedures\fR .sp 1P .RT .sp 1P .LP 3.1 \fIArrow diagrams\fR .sp 9p .RT .PP This section contains the interworking arrow diagrams for the successful call set\(hyup procedures. .RT .sp 1P .LP 3.1.1 \fIEnbloc, non\(hyautomatic answering terminal, sending of address\fR \fIcomplete independent of access\fR .sp 9p .RT .PP Figure 3/Q.699 shows the sequence of messages for successful call set\(hyup where enbloc address signalling is used, the Address Complete Message (ACM) is sent by the network independent of access indications, and the called party is not an automatic answering terminal. .RT .sp 1P .LP 3.1.2 \fIEnbloc, automatic answering terminal, sending of address complete\fR \fIindependent of access\fR .sp 9p .RT .PP Figure\ 4/Q.699 shows the sequence of messages for successful call set\(hyup where enbloc address signalling is used, the address complete Message is sent independent of access indications, and the called party is an automatic answer terminal (fast connect scenario). .RT .sp 1P .LP 3.1.3 \fIEnbloc, non\(hyautomatic answering terminal\fR .sp 9p .RT .PP Figure 5/Q.699 shows the sequence of messages for successful call set\(hyup where enbloc address signalling is used, the Address Complete Message is delayed until receipt of alerting indication from the access, and the called party is not an automatic answering terminal. .RT .sp 1P .LP 3.1.4 \fIEnbloc, automatic answering terminal\fR .sp 9p .RT .PP Figure 6/Q.699 shows successful call set\(hyup with enbloc address signalling, and the address complete indication delayed until receipt of connect indication from an automatic answering terminal. In this case the address complete indication and connect indication are combined in the Connect message in the network. .RT .sp 1P .LP 3.1.5 \fIOverlap addressing, originating access only, non\(hyautomatic\fR \fIanswering terminal\fR .sp 9p .RT .PP Figure 7/Q.699 shows the sequence of messages when overlap addressing is used between the calling party and the originating local exchange, and enbloc addressing is used within the network. An independent ACM and non\(hyautomatic answering terminal is assumed in this case. Variations are possible as in Figures\ 3/Q.699\(hy6/Q.699. .RT .sp 1P .LP 3.1.6 \fIOverlap addressing, originating access and network, non\(hyautomatic\fR \fIanswering terminal\fR .sp 9p .RT .PP Figure 8/Q.699 shows the sequence of messages when overlap addressing is used at the originating access and within the network. In this case the ACM through the network informs the originating local exchange that enough address information has been received, and the exchange can therefore indicate CALL PROCeeding to the calling party. .RT .sp 1P .LP 3.1.7 \fIOverlap addressing, both accesses and network, address complete\fR \fIcannot be determined by number analysis\fR .sp 9p .RT .PP In Figure 9/Q.699, overlap addressing is used at both accesses and in the network. An example is a call made to an ISDN PABX, where determination of address complete may only be made as a result of an indication, e.g.\ alerting, from the called access. In this case, the ALERTing message from the called access allows the sending of an ACM in the network, which since it carries the \*Qsubscriber free\*U indication is mapped to ALERTing at the calling access. .bp .RT .sp 1P .LP 3.1.8 \fIOverlap addressing, originating access and network, address\fR \fIcomplete determined by number analysis\fR .sp 9p .RT .PP In Figure 10/Q.699, overlap addressing is used to reduce the post\(hydialing delay by allowing connection set\(hyup to be in parallel with the entering of digits by the calling party. In this case, proceeding indications can be independently derived from number analysis. The diagram assumes independent ACM sending, however alternative cases are possible as in Figures\ 3/Q.699\(hy6/Q.699. .RT .sp 1P .LP 3.1.9 \fIISDN to analogue subscriber\fR .sp 9p .RT .PP Figure 12/Q.699 shows the sequence of messages for a call from an ISDN subscriber to an analogue subscriber. The arrows between the local exchange and non\(hyISDN user indicate signals that may vary with the access protocol. .RT .sp 1P .LP 3.1.10 \fIAnalogue subscriber to ISDN\fR .sp 9p .RT .PP Figure 13/Q.699 shows the sequence of messages for a call from an analogue subscriber to an ISDN subscriber. Again, the arrows between non\(hyISDN user and local exchange indicate signals that may vary with the access protocol. Procedures for ACM and ANM may vary as in Figures\ 3/Q.699\(hy6/Q.699. Overlap addressing may also be used in this case. Interworking then follows the message flows shown in Figures\ 8/Q.699 and\ 10/Q.699. .RT .sp 1P .LP 3.1.11 \fIISDN\(hyPSTN interworking\fR .sp 9p .RT .PP Figure 14/Q.699 shows the interworking between ISDN and PSTN, in the case where the PSTN does not provide an out\(hyof\(hyband address complete indication. More detailed interworking between ISDN and PSTN is given in the Q.600\ Recommendations. .RT .sp 1P .LP 3.1.12 \fIPSTN\(hyISDN interworking\fR .sp 9p .RT .PP Figure 15/Q.699 shows interworking in a call originating in the PSTN, where the PSTN does not provide an out\(hyof\(hyband address complete indication. Overlap addressing may also be used in this case. Interworking then follows the message flows shown in Figures\ 8/Q.699 and\ 10/Q.699. .RT .sp 1P .LP 3.1.13 \fIISDN\(hyPSTN interworking, PSTN support out\(hyof\(hyband address\fR \fIcomplete indication\fR .sp 9p .RT .PP Figure 16/Q.699 shows interworking where the PSTN provides an out\(hyof\(hyband address complete indication. As noted, the primitive and ACM indicators may differ depending on whether or not the PSTN provides call progress indications. More detailed interworking between ISDN and PSTN is given in the Q.600\ Recommendations. .RT .sp 1P .LP 3.1.14 \fIPSTN\(hyISDN interworking, PSTN supports out\(hyof\(hyband address\fR \fIcomplete indication\fR .sp 9p .RT .PP Figure 17/Q.699 shows interworking for a call originating in the PSTN, where the PSTN provides out\(hyof\(hyband address complete indications. .RT .sp 1P .LP 3.1.15 \fIUser\(hygenerated PROGress message, sending of address complete\fR \fIindependent of access\fR .sp 9p .RT .PP Figure 18/Q.699 shows the case where the PROGress message in Q.931 is used to indicate interworking outside of the public network. In order to support user\(hygenerated in\(hyband information, the terminating exchange may optionally through\(hyconnect in the backwards direction on receipt of the PROGress message (see Annex\ O of Recommendation\ Q.931). .RT .sp 1P .LP 3.1.16 \fIUser\(hygenerated PROGress message\fR .sp 9p .RT .PP Figure 19/Q.699 shows the corresponding case when the address complete indication is delayed until an indication is received from the access, and the PROGress message maps to an Address Complete Message. .RT .sp 1P .LP 3.1.17 \fIOverlap addressing, both accesses and within network,\fR \fItransfer of address complete indication via call proceeding\fR .sp 9p .RT .PP Figure 11/Q.699 shows the case where the indication that complete address information has been received is transferred by the terminating access in the proceeding primitive. .bp .RT .sp 1P .LP 3.1.18 \fINotes relative to Figures 3/Q.699 to 19/Q.699\fR .sp 9p .RT .PP The following notes apply to all interworking diagrams in this section: .RT .LP \(em If continuity check occurs in the network, the SET\(hyUP request primitive in the terminating local exchange is not passed until continuity is verified. .LP \(em Through\(hyconnection for specific cases may vary from the examples shown, e.g.\ for different PSTN signalling systems. More detailed information can be found in Recommendation\ Q.764, \(sc\(sc\ 2.1.1.1 and\ 2.1.2.1. .PP The remaining notes apply where referenced in particular figures: .PP \fINote\ 1\fR \ \(em\ This message may be sent by the user to achieve symmetrical working or to avoid timer expiry on response to SET\(hyUP (see Recommendation\ Q.931 \(sc\ 5.2.5.1). .PP \fINote\ 2\fR \ \(em\ This message may be sent by the user to achieve symmetrical working (see Recommendation\ Q.931 \(sc\ 5.1.8). .PP \fINote\ 3\fR \ \(em\ Called line status = no indication; ISDN access indicator = ISDN access. .PP \fINote\ 4\fR \ \(em\ Called line status = subscriber free; ISDN access indicator = ISDN access. .PP \fINote\ 5\fR \ \(em\ The number of INFORMATION messages and primitives shown is for example only. In practice the number may be zero or more; of zero, the Set\(hyup request and Proc request primitives may be originated on expiry of timer T302 (see \(sc\ 5.1.5.2 of Recommendation\ Q.931). .PP \fINote\ 6\fR \ \(em\ Progress indicator = 2 \(em destination address is non\(hyISDN. .PP \fINote\ 7\fR \ \(em\ Called line status = subscriber free; ISDN User Part indicator = ISDN User Part used all\(hythe\(hyway; ISDN access indicator = non\(hyISDN Access. .PP \fINote\ 8\fR \ \(em\ ISDN User Part indicator = ISDN User Part used all\(hythe\(hyway; ISDN access indicator = non\(hyISDN Access. .PP \fINote\ 9\fR \ \(em\ Conditional on type of access. .PP \fINote\ 10\fR \ \(em\ Progress indicator = 3 \(em origination address is non\(hyISDN. .PP \fINote\ 11\fR \ \(em\ Completion of transmission path timing is described in \(sc\ 2.1.9.1 of Recommendation\ Q.764. .PP \fINote\ 12\fR \ \(em\ Called line status = no indication; ISDN User Part indicator = ISDN User Part not used all\(hythe\(hyway; ISDN access indicator = non\(hyISDN access. .PP \fINote\ 13\fR \ \(em\ ISDN User Part indicator = ISDN User Part not used all\(hythe\(hyway; ISDN access indicator = non\(hyISDN access. .PP \fINote\ 14\fR \ \(em\ Primitive is either Progress or Alerting, depending on the PSTN indication. If the PSTN indicates Alerting (subscriber free), then an ALERTing message replaces the PROGress message at the originating Q.931\ interface. .PP \fINote\ 15\fR \ \(em\ Called line status depends on PSTN indication; ISDN User Part indicator = ISDN User Part not used all\(hythe\(hyway; ISDN access indicator = non\(hyISDN access. .PP \fINote\ 16\fR \ \(em\ Progress indicator = 1 \(em Call is not end\(hyto\(hyend ISDN, further information available inband. .PP \fINote\ 17\fR \ \(em\ Called line status = no indication; Access transport parameter contains Progress information element. .PP \fINote\ 18\fR \ \(em\ The set\(hyup message may in some cases contain sufficient information. If user equipment can determine immediately that address information is complete, both SET\(hyUP ACK and the sequence of INFO messages are omitted. Alternatively, the SET\(hyUP ACK may be sent, followed by CALL PROC, which maps to ACM. .bp .RT .LP .rs .sp 47P .ad r \fBFigure 3/Q.699, p. 5\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 4/Q.699, p. 6\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 5/Q.699, p. 7\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 6/Q.699, p. 8\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 7/Q.699, p. 9\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 8/Q.699, p. 10\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 9/Q.699, p. 11\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 10/Q.699, p. 12\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 11/Q.699, p. 13\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 12/Q.699, p. 14\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 13/Q.699, p. 15\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 14/Q.699, p. 16\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 15/Q.699, p. 17\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 16/Q.699, p. 18\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 17/Q.699, p. 19\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 18/Q.699, p. 20\fR .sp 1P .RT .ad b .RT .LP .bp .LP .rs .sp 47P .ad r \fBFigure 19/Q.699, p. 21\fR .sp 1P .RT .ad b .RT .LP .bp .sp 1P .LP 3.2 \fIMapping of Parameters\fR .sp 9p .RT .PP This section contains the mapping tables of successful call set\(hyup messages and associated parameters and information elements. .RT .LP \-v'1P' .ce \fBH.T. [T1.699]\fR .ce TABLE\ 1/Q.699 .ce \fBMapping of set\(hyup procedure parameters for ISDN call\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message SETUP IAM SETUP _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) , ^ | ^ | l | ^ . Contents Bearer capability User service information Bearer capability Trans. med. reqts (Note 1) _ .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . No mapping Forward call indicator No mapping .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Progress indicator Access transport (Note 2) Progress indicator .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . { Calling party number (Note 6) } { Calling party number (Note 3) } Calling party number .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Calling party subaddress Access transport Calling party subaddress .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Called party number (Note 4) Called party number Called party number .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Setup complete ST digit (Note\ 5) No mapping .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Called party subaddress Access transport Called party subaddress .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Transit network sel. Transit network sel. No mapping .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . Low layer compatibility Access transport Low layer compatibility .T& lw(180p) . .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) . High layer compatibility Access transport High layer compatibility .TE .LP \fINote 1\fR \ \(em\ The User Service Information parameter carries the customer's bearer service request unchanged through the network, and is mapped at the terminating exchange. Transmission Medium Requirements maps from the service request to a network connection type. It is not mapped at the terminating exchange in an ISDN call. For calls between networks (e.g. international gateways), the contents of the Bearer Capability information element carried within the User Service Information parameter may be changed, e.g. where A\(hylaw to mu\(hylaw conversion applies. .LP \fINote 2\fR \ \(em\ The access Transport parameter carries information elements transparently from one User/Network interface to the other User/Network interface. .LP \fINote 3\fR \ \(em\ The calling party number is recommended to be carried in the IAM, however it may optionally be delayed until a subsequent end\(hyto\(hyend request in the network. Number and subaddress should be carried in the same message. .LP \fINote 4\fR \ \(em\ The Keypad Facility information element may be used to carry called party number information in the user\(hyto\(hynetwork direction (described in \(sc\ 5.1 of Recommendation Q.921) rather than the Called Party Number information element. This is then mapped to the Called Party Number parameter within the network. .LP \fINote 5\fR \ \(em\ The ST digit is an address signal carried within the Called Party Number parameter. .LP \fINote 6\fR \ \(em\ The calling party number may be provided solely to indicate calling line identity restriction. .nr PS 9 .RT .ad r \fBTableau 1/Q.699 [T1.699], p. 22\fR .sp 1P .RT .ad b .RT .LP .bp .ce \fBH.T. [T2.699]\fR .ce TABLE\ 2/Q.699 .ce \fBMapping of set\(hyup parameters for PSTN\(hyISDN call\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Not Applicable Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message IAM SETUP _ .T& lw(48p) | lw(60p) | lw(60p) | lw(60p) , ^ | l | l | l. { Transmission medium requirements } Bearer capability { Forward call indicators (interworking) } Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 2/Q.699 [T2.699], p. 23\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T3.699]\fR .ce TABLE\ 3/Q.699 .ce \fBMapping of subsequent address information for overlap sending\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message INFO SAM INFO _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) . Contents { Called party number of Keypad (Note) } Subsequent number Called party number (Note) .TE .LP \fINote\fR \ \(em\ Sending complete may be included at both User/Network interfaces in the INFORMATION message. .nr PS 9 .RT .ad r \fBTableau 3/Q.699 [T3.699], p. 24\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T4.699]\fR .ce TABLE\ 4/Q.699 .ce \fBMapping of interworking with PSTN inband\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message PROGress (Note) ACM Not applicable _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) . Contents Progress indicator { Backward call indicator (interworking) } .TE .LP \fINote\fR \ \(em\ The ACM may also map to the CALL PROCEEDING message if this has not already been sent. .nr PS 9 .RT .ad r \fBTableau 4/Q.699 [T4.699], p. 25\fR .sp 1P .RT .ad b .RT .LP .sp 2 .bp .ce \fBH.T. [T5.699]\fR .ce TABLE\ 5/Q.699 .ce \fBMapping of alerting, independent ACM\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message ALERTing CPG ALERTing _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) , ^ | l | l | l. Contents alerting (implicit) Event information (alerting) alerting (implicit) Progress indicator Access transport Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 5/Q.699 [T5.699], p. 26\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T6.699]\fR .ce TABLE\ 6/Q.699 .ce \fBMapping of alerting\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message ALERTing ACM ALERTing _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) , ^ | l | l | l. Contents alerting (implicit) { Backward call indicators (subscriber free) } alerting (implicit) Progress indicator Access transport Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 6/Q.699 [T6.699], p. 27\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T7.699]\fR .ce TABLE\ 7/Q.699 .ce \fBMapping of answer indication, non\(hyautomatic answering terminal\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message CONNect ANM CONNect _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) . Contents Progress indicator Access transport Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 7/Q.699 [T7.699], p. 28\fR .sp 1P .RT .ad b .RT .LP .sp 2 .bp .ce \fBH.T. [T8.699]\fR .ce TABLE\ 8/Q.699 .ce \fBMapping of answer indication, automatic answering terminal\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message CONNect CON CONNect _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) . Contents Progress indicator Access Transport Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 8/Q.699 [T8.699], p. 29\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T9.699]\fR .ce TABLE\ 8a/Q.699 .ce \fBMapping of progress indication\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message PROGress CPG PROGress _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) , ^ | l | l | l. Contents Progress (implicit) { Backward call indicators (no indication) } Progress (implicit) Progress indicator Access transport Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 8A/Q.699 [T9.699], p. 30\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T10.699]\fR .ce TABLE\ 8b/Q.699 .ce \fBMapping of progress indication\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(60p) | cw(60p) | cw(60p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(60p) | cw(60p) | cw(60p) . Message PROGress ACM PROGress _ .T& cw(48p) | lw(60p) | lw(60p) | lw(60p) , ^ | l | l | l. Contents Progress (implicit) { Backward call indicators (no indication) } Progress (implicit) Progress indicator Access transport Progress indicator _ .TE .nr PS 9 .RT .ad r \fBTableau 8B/Q.699 [T10.699], p. 31\fR .sp 1P .RT .ad b .RT .LP .sp 2 .bp .sp 1P .LP 3.3 \fIMapping of the parameter fields\fR .sp 9p .RT .PP This section contains the mapping tables of parameter subfields and values for the Progress Indicator of Recommendation\ Q.931 and the associated fields in ISUP. .PP The following notes apply to all mapping tables in this attachment: .RT .LP \(em The mapping of the Backward Call Indicator in the Answer Mesage only applies when this indicator is included in the Answer Message. .LP \(em For simplicity, these diagrams assume the case where the ACM is not sent independently, and a non\(hyautomatic answering terminal is the called party. Other configurations are possible as shown in the arrow diagrams, but do not affect parameter mapping rules. .sp 1P .LP 3.3.1 \fIScenario 1\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 32\fR .sp 1P .RT .ad b .RT .LP .sp 2 .ce \fBH.T. [T11.699]\fR .ce TABLE\ 9/Q.699 .ce \fBParameter fields mapping for Q.931\(hyISUP\(hyQ.931\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message SETUP IAM SETUP _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Forward call ind. Bit D = 0, no interworking encountered \fBBit\fR F = 1, ISUP used all the way \fBBit\fR I = 1, originating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message ALERTing ACM ALERTing _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message CONNect ANM CONNect _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .TE .nr PS 9 .RT .ad r \fBTableau 9/Q.699 [T11.699], p. 33\fR .sp 1P .RT .ad b .RT .LP .bp .sp 1P .LP 3.3.2 \fIScenario 2\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 34\fR .sp 1P .RT .ad b .RT .LP .sp 5 .ce \fBH.T. [T12.699]\fR .ce TABLE\ 10/Q.699 .ce \fBParameter fields mapping for Q.931\(hyISUP\(hyPSTN\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message SETUP IAM N/A _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Forward call ind. Bit D = 0, no interworking encountered \fBBit\fR F = 1, ISUP used all the way \fBBit\fR I = 1, originating access ISDN } no mapping applied _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message PROGress ACM N/A _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress ind. progress description =\ ##\ 1, call is not end\(hyto\(hyend ISDN } { Backward call ind. Bit I = 1, interworking encountered \fBBit\fR K = 0, ISUP not used all the way \fBBit\fR M = 0, terminating access ISDN } no mapping applied _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message CONNect ANM N/A _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress ind. progress description =\ ##\ 1, call is not end\(hyto\(hyend ISDN } { Backward call ind. Bit I = 1, interworking encountered \fBBit\fR K = 0, ISUP not used all the way \fBBit\fR M = 0, terminating access ISDN } no mapping applied _ .TE .nr PS 9 .RT .ad r \fBTableau 10/Q.699 [T12.699], p. 35\fR .sp 1P .RT .ad b .RT .LP .sp 5 .bp .sp 1P .LP 3.3.3 \fIScenario 3\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 36\fR .sp 1P .RT .ad b .RT .LP .sp 5 .ce \fBH.T. [T13.699]\fR .ce TABLE\ 11/Q.699 .ce \fBParameter fields mapping for PSTN\(hyISUP\(hyQ.931\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message N/A IAM SETUP _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no mapping applied { Forward call ind. Bit D = 1, interworking encountered \fBBit\fR F = 0, ISUP not used all the way \fBBit\fR I = 0, originating access non\(hyISDN } { Progress ind. progress description =\ ##\ 1, call is not end\(hyto\(hyend ISDN } _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message N/A ACM ALERTing _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no mapping applied { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message N/A ANM CONNect _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no mapping applied { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no mapping applied _ .TE .nr PS 9 .RT .ad r \fBTableau 11/Q.699 [T13.699], p. 37\fR .sp 1P .RT .ad b .RT .LP .sp 5 .bp .sp 1P .LP 3.3.4 \fIScenario 4\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 38\fR .sp 1P .RT .ad b .RT .LP .sp 5 .ce \fBH.T. [T14.699]\fR .ce TABLE\ 12/Q.699 .ce \fBParameter fields mapping for ISUP\(hyQ.931\(hyANALOGUE\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message SETUP IAM N/A _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Forward call ind. Bit D = 0, no interworking encountered \fBBit\fR F = 1, ISUP used all the way \fBBit\fR I = 1, originating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message ALERTing ACM N/A _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress ind. progress description =\ ##\ 2, destination address is non\(hyISDN } { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access non\(hyISDN } no mapping applied _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message CONNect ANM N/A _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress ind. progress description =\ ##\ 2, destination address is non\(hyISDN } { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access non\(hyISDN } no mapping applied _ .TE .nr PS 9 .RT .ad r \fBTableau 12/Q.699 [T14.699], p. 39\fR .sp 1P .RT .ad b .RT .LP .sp 5 .bp .sp 1P .LP 3.3.5 \fIScenario 5\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 40\fR .sp 1P .RT .ad b .RT .LP .sp 5 .ce \fBH.T. [T15.699]\fR .ce TABLE\ 13/Q.699 .ce \fBParameter fields mapping for ANALOGUE\(hyISUP\(hyQ.931\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message N/A IAM SETUP _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no mapping applied { Forward call ind. Bit D = 0, no interworking encountered \fBBit\fR F = 1, ISUP used all the way \fBBit\fR I = 0, originating access non\(hyISDN } { Progress ind. progress description =\ ##\ 3, originating address is non\(hyISDN } _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message N/A ACM ALERTing _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no mapping applied { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message N/A ANM CONNect _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no mapping applied { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .TE .nr PS 9 .RT .ad r \fBTableau 13/Q.699 [T15.699], p. 41\fR .sp 1P .RT .ad b .RT .LP .sp 5 .bp .sp 1P .LP 3.3.6 \fIScenario 6\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 42\fR .sp 1P .RT .ad b .RT .LP .sp 5 .ce \fBH.T. [T16.699]\fR .ce TABLE\ 14/Q.699 .ce \fBParameter fields mapping for ANALOGUE\(hyQ.931\(hyISUP\(hyQ.931\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message SETUP IAM SETUP _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress ind. progress description =\ ##\ 3, originating address in non\(hyISDN location\ =\ private network } { Forward call ind. Bit D = 0, no interworking encountered \fBBit\fR F = 1, ISUP used all the way \fBBit\fR I = 1, originating access ISDN Access transport carries Progress ind. } { Progress ind. as received from the ATP } _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message ALERTing ACM ALERTing _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message CONNect ANM CONNect _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN } no Progress ind. _ .TE .nr PS 9 .RT .ad r \fBTableau 14/Q.699 [T16.699], p. 43\fR .sp 1P .RT .ad b .RT .LP .sp 5 .bp .sp 1P .LP 3.3.7 \fIScenario 7\fR .sp 9p .RT .LP .rs .sp 3P .ad r \fBFigure, p. 44\fR .sp 1P .RT .ad b .RT .LP .sp 4 .ce \fBH.T. [T17.699]\fR .ce TABLE\ 15/Q.699 .ce \fBParameter fields mapping for Q.931\(hyISUP\(hyQ.931\(hyANALOGUE\fR .ps 9 .vs 11 .nr VS 11 .nr PS 9 .TS center box; lw(48p) | cw(48p) | cw(84p) | cw(48p) . Originating User/Network Network Terminating User/Network _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message SETUP IAM SETUP _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content no Progress ind. { Forward call ind. Bit D = 0, no interworking encountered \fBBit\fR F = 1, ISUP used all the way \fBBit\fR I = 1, originating access ISDN } no Progress ind. _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message ALERTing ACM ALERTing _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress ind. as received in the ATP } { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN ATP carries Progress indicator } { Progress ind. progress description =\ ##\ 2, destination address in non\(hyISDN location = private network } _ .T& cw(48p) | cw(48p) | cw(84p) | cw(48p) . Message CONNect ANM CONNect _ .T& cw(48p) | lw(48p) | lw(84p) | lw(48p) . Content { Progress. ind. as received in the ATP } { Backward call ind. Bit I = 0, no interworking encountered \fBBit\fR K = 1, ISUP used all the way \fBBit\fR M = 1, terminating access ISDN ATP carries Progress indicator } { Progress ind. (Note) progress description =\ ##\ 2, destination address in non\(hyISDN location = private network } .TE .LP \fINote\fR \ \(em\ The Progress indicator is not necessarily repeated in the CONNECT message if it has already appeared in the ALERTING message. .nr PS 9 .RT .ad r \fBTableau 15/Q.699 [T17.699], p. 45\fR .sp 1P .RT .ad b .RT .LP .sp 4 .bp