1、 AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS-1000666.a.2000(R2014) Supplement to ATIS-1000666, Interactions Between the Operator Services Network Capability (OSNC) and Release to Pivot (RTP) As a leading technology and solutions development organization, ATIS brings together the top globa
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17、se. ATIS-1000666.a.2000(R2014), Supplement to ATIS-100066 Interactions Between the Operator Services Network Capability (OSNC) and Release to Pivot (RTP) Is an American National Standard developed by the Signaling, Architecture and Control (SAC) Subcommittee under the ATIS Packet Technologies and Sy
18、stems Committee (PTSC). Published by Alliance for Telecommunications Industry Solutions 1200 G Street, NW, Suite 500 Washington, DC 20005 Copyright 2014 by Alliance for Telecommunications Industry Solutions All rights reserved. No part of this publication may be reproduced in any form, in an electro
19、nic retrieval system or otherwise, without the prior written permission of the publisher. For information contact ATIS at 202.628.6380. ATIS is online at . ATIS-1000666.a.2000 (formerly T1.666a-2000) American National Standard for Telecommunications - Supplement to T1.666-1999, Interactions Between
20、the Operator Services Network Capability (OSNC) and Release to Pivot (RTP) Secretariat Alliance for Telecommunications Industry Solutions Approved November 15, 2000 American National Standards Institute, Inc. ii Table of Contents 1 Introduction. 1 2 Normative References 1 3 Abbreviations and Definit
21、ions.1 4 Originating Connection Functions 2 4.1 Normal Procedures . 2 4.2 Functional Entity Model. 2 4.3 Description of Functional Entity AC1 2 4.4 Description of Functional Entity AC2 3 5 Information Flow Model 3 6 Protocol and Procedures 4 6.1 Formats and Codes 4 6.1.1 Parameters for IAM 4 6.1.2 P
22、arameters for Release. 6 6.1.3 Protocol for Notification Message 7 6.2 Procedures 7 6.2.1 OSS Routing Identifier . 8 6.2.2 Returned Information . 8 6.2.3 Monitor Event Request 8 6.2.4 Notification Request. 8 6.2.5 Point Code . 8 6.2.6 Subsystem Number . 9 6.2.7 Accounting Information 9 Table of Figu
23、res Figure 1 - Operator Services Network Capability Functions . 2 Figure 2 - OSNC Forward Information parameter. 4 Figure 3 - Returned Information 5 Figure 4 - Collected Information 5 Figure 5 - OSNC Backward Information parameter 6 AMERICAN NATIONAL STANDARD ATIS-1000666.a.2000American National Sta
24、ndard for Telecommunications - Supplement to T1.666-1999, Interactions Between the Operator Services Network Capability (OSNC) and Release to Pivot (RTP) Annex T (normative) 1 Introduction This Annex describes the additional functions that the Operator Services Network Capability (OSNC) - described
25、in T1.666-1999 - will need to perform when invoking the Release to Pivot (RTP) network capability - described in T1.661-1997. These functions are activated on a per-switch basis and are only activated when the Release to Pivot network capability is also active. In particular, the originating end off
26、ice and the operator services switch may activate these functions independently, though RTP will not be invoked for a given call unless both switches have these functions active. This Annex applies to an OSNC Originating Connection or to a Type 2 Transfer Connection. No additional changes to the sco
27、pe, purpose and application of the Operator Services Network Capability are required. 2 Normative References The following documents contain provisions that, through reference in this text, constitute provisions of this American National Standard. These are in addition to the documents listed in cla
28、use 2 of other sections of this document. T1.114-2000, Signaling System Number 7 (SS7) - Transaction Capabilities Application Part (TCAP). T1.401-1993, Interface Between Carriers and Customer Installations - Analog Voicegrade Switched Access Lines Using Loop-Start and Ground-Start Signaling. T1.661-
29、2000, SS7 - Release to Pivot (RTP). 3 Abbreviations and Definitions IAM Initial Address Message ISDN Integrated Services Digital Network ISUP ISDN User Part ATIS-1000666.a.2000 2 OSNC Operator Services Network Capability OSS Operator Services System PIN Personal Identification Number RTP Release to
30、Pivot ST Start Signal TCAP Transaction Capabilities Application Part 4 Originating Connection Functions 4.1 Normal Procedures During establishment of the originating connection, the network may add an offer of RTP functionality to the call setup request that results from an operator services request
31、. The operator service may then invoke RTP when a new destination is determined for the call. Additional information may be exchanged to facilitate: returning the call to the RTP-invoking exchange, notification to the RTP-invoking exchange of the disposition of the call, and proper accounting1. 4.2
32、Functional Entity Model AC 2AC 2AC 1OC 2TC 1invoking serviceFE 1 FE 2 FE 3 FE 4 FE 5OC 1optional optionalUSERFE 6optionalTC 2FE 7Figure 1 - Operator Services Network Capability Functions 4.3 Description of Functional Entity AC1 AC1 provides operator-services specific functionality in support of the
33、invocation of RTP. During initial call establishment, AC1 is able to: 1Note that the internetwork exchange of accounting information may require agreements that are outside the scope of this standard. ATIS-1000666.a.2000 3 use RTP functionality to assure an offer of RTP is sent forward with “Redirec
34、tion Possible Any Time During the Call.” specify “OSNC” as a Reason why RTP may be invoked. indicate forward the specific OSNC-related functions that are allowed on the call. On invocation of RTP at AC1 by AC2, AC1 is able to: monitor the pivoted call to provide notification to AC2 of the dispositio
35、n of the call. store information from AC2 to be returned to AC2 in the event the call is returned to AC2. monitor the call for the “#” or “*” indication that the call should be returned to AC2 and optionally collect user digits to be forwarded with the call setup. The “#”and “*” indications are spec
36、ified in T1.401-1993, using the frequency pairs 1477/941 Hz and 1209/941 Hz, respectively. use the RTP “return to invoking exchange” function to return the call to AC2, optionally using routing information supplied by AC2. 4.4 Description of Functional Entity AC2 AC2 provides operator-services speci
37、fic functionality in support of the invocation of RTP. On receipt of a call offering RTP with a reason of “OSNC,” AC2 is able to: alert the invoking service of available OSNC-related functions allowed on the call. respond to a request from the invoking service to invoke RTP to deliver the call to a
38、new destination, including information required to support the desired OSNC-related functions. receive notification of disposition of the call after the call has been released to AC1. deliver to the invoking service a call received by FE3 with an indication the call is being returned to AC2 followin
39、g detection of a requested “#” or “*” signal from the user. The “#” and “*” indications are specified in T1.401-1993. 5 Information Flow Model During initial call setup, OC1 is enhanced by the functions of AC1 to invoke RTP. RTP functionality is used to indicate that RTP may be invoked “Any Time Dur
40、ing the Call” and to indicate “OSNC” as a reason for invoking RTP. Other services and network capabilities may add additional RTP reasons. AC1 functionality is used to pass additional information with the CALL REQest, as detailed in the protocol and procedures. When the call is released by AC2, RTP
41、functionality is used to indicate that the reason RTP is being invoked is OSNC. AC2 may pass additional information with the Call Disconnect, as detailed in the protocol and procedures. AC1 is an extension of, and resides in the same node as, OC1 functionality. AC2 is an extension of, and resides in
42、 the same node as, either OC2 or TC2. ATIS-1000666.a.2000 4 6 Protocol and Procedures 6.1 Formats and Codes 6.1.1 Parameters for IAM The format of the OSNC Forward Information parameter shall be a constructor as shown in Figure 2. 8 7 6 5 4 3 2 1 Information Type Tag Length Value M Information Type
43、Tag Length Value Figure 2 - OSNC Forward Information parameter The Tags in the OSNC Forward Information parameter are encoded as follows: 0000 0001 Version Control 0000 0010 Returned Information 0000 0011 Collected Information 0000 0100 to spare 0010 0000 0010 0001 Reserved for answer/no answer noti
44、fication version 0010 0010 Reserved for termination notification version 0010 0011 Reserved for notification version 0010 0100 Reserved for accounting information in Release version 0010 0101 Reserved for carrier in Release version 0010 0110 Reserved for monitor event version 0010 0111 to spare 1111
45、 1111 The following codes shall be used in the Version Control field: bit 1: Answer/No Answer support 0 not supported 1 supported bit 2: Termination notification 0 not supported 1 supported ATIS-1000666.a.2000 5 bit 3: Accounting information in Release 0 not supported 1 supported bit 4: Carrier info
46、rmation in Release 0 not supported 1 supported bit 5: Monitor Event 0 not supported 1 supported bit 6: Reserved for extension of Answer/No Answer bit 7-8: Reserved The Returned Information shall be a constructor with the following form: 8 7 6 5 4 3 2 1 First octet of returned information M Last octe
47、t of returned information Figure 3 - Returned Information The Collected Information shall have the following format 8 7 6 5 4 3 2 1 odd/even encoding scheme spare first digit “#” or “*” third digit second digit M filler (if needed) nth address signal Figure 4 - Collected Information The address sign
48、als shall be encoded as follows: 0000 digit 0 0001 digit 1 0010 digit 2 0011 digit 3 0100 digit 4 0101 digit 5 0110 digit 6 ATIS-1000666.a.2000 6 0111 digit 7 1000 digit 8 1001 digit 9 1010 spare (no interpretation) 1011 code 11 1100 code 12 1101 * 1110 # 1111 ST (Reserved) (no interpretation) 6.1.2
49、 Parameters for Release The format of the OSNC Backward Information parameter shall be a constructor as shown in Figure 5. 8 7 6 5 4 3 2 1 Information Type Tag Length Value M Information Type Tag Length Value Figure 5 - OSNC Backward Information parameter The Tags in the OSNC Backward Information parameter are encoded as follows: 0000 0001 OSS Routing Identifier 0000 0010 Returned Information 0000 0011 Monitor Event Accepted 0000 0100 Call Reference Notification Request 0000 0101 Answer/No Answer Notification Accepted 0000 0110 Termination Notification
