ETSI TS 183 036 V3.5.1 (2012-08)

Technical Specification
Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
ISDN/SIP interworking;
Protocol specification
2 ETSI TS 183 036 V3.5.1 (2012-08)

Reference
RTS/TISPAN-03221-NGN-R3
Keywords
IMS, interworking, ISDN, SIP
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ETSI
3 ETSI TS 183 036 V3.5.1 (2012-08)
Contents
Intellectual Property Rights . 7
Foreword . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 11
3 Definitions and abbreviations . 12
3.1 Definitions . 12
3.2 Abbreviations . 12
4 General . 13
5 Interworking for IMS simulation / emulation services . 14
5.1 Basic Call . 14
5.1.1 Actions at the Outgoing AGCF/VGW . 14
5.1.1.1 Sending of the Initial INVITE . 14
5.1.1.1.1 En-bloc sending according to EN 300 403-1, clause 5.1.1 . 15
5.1.1.1.2 Bearer capability mapping . 15
5.1.1.1.3 Mapping of Progress indicator/High Layer Compatibility/Low Layer Compatibility IE . 16
5.1.1.1.4 Request URI/To header field . 17
5.1.1.2 Receipt of a Provisional Response 18x . 20
5.1.1.2.1 180 Ringing response . 20
5.1.1.2.2 Receipt of the 183 (Session Progress) response . 23
5.1.1.3 Receipt of the 200 OK INVITE . 26
5.1.1.4 Receipt of (BYE or Final Response) . 28
5.1.1.5 Sending of (BYE or CANCEL) . 29
5.1.1.6 Use of Overlap Signalling (Optional) . 30
5.1.2 Actions at the Incoming AGCF/VGW . 30
5.1.2.1 Sending of the SETUP message . 30
5.1.2.2 Sending of the 18x from the destination VGW/AGCF . 34
5.1.2.3 Sending of the 200 OK INVITE . 36
5.1.2.4 Receipt of BYE/CANCEL . 38
5.1.2.5 Sending of BYE/4xx/5xx . 38
5.1.2.6 Sending of the DSS1 INFO (Optional) . 39
5.2 Supplementary services . 40
5.2.1 Communication Hold (HOLD) . 40
5.2.1.1 Actions at the Incoming AGCF/VGW . 40
5.2.1.1.1 Notification received from the network . 40
5.2.1.1.2 Invocation at coincident S and T reference point . 40
5.2.1.1.3 Notification received at T reference point . 41
5.2.1.2 Actions at the outgoing AGCF/VGW . 41
5.2.1.2.1 Notification received from the network . 41
5.2.1.2.2 Invocation at coincident S and T reference point . 41
5.2.1.2.3 Notification received at T reference point . 41
5.2.2 Connected Line Identification Presentation (COLP) / Connected Line Identification Restriction
(COLR) . 42
5.2.2.1 Actions at the incoming AGCF/VGW . 42
5.2.2.1.1 Connected Line Identification Presentation (COLP) . 42
5.2.2.1.2 Connected Line Identification Restriction (COLR) . 44
5.2.2.2 Actions at the outgoing AGCF/VGW . 45
5.2.2.2.1 Connected Line Identification Presentation (COLP) . 45
5.2.2.2.2 Connected line identification restriction (COLR) . 47
5.2.3 Calling line Identification Presentation (CLIP) / Calling line Identification Restriction (CLIR) . 48
5.2.3.1 Actions at the incoming AGCF/VGW . 48
5.2.3.2 Actions at the outgoing AGCF/VGW . 50
ETSI
4 ETSI TS 183 036 V3.5.1 (2012-08)
5.2.4 Conference calling (CONF) . 52
5.2.5 Communication Diversion Services (CDIV) . 52
5.2.5.1 Actions at the Outgoing AGCF/VGW . 52
5.2.5.1.1 Reception of a "call is diverting" notification . 52
5.2.5.1.2 Evaluation of History-Info header . 53
5.2.5.1.3 Procedures at the T reference point . 55
5.2.5.2 Actions at the incoming AGCF/VGW . 56
5.2.5.2.1 Interworking at the AGCF/VGW where a call is diverted within or beyond the private ISDN
(T reference point) . 56
5.2.5.2.2 Interworking at the coincident S and T reference point where a diverted call is presented . 57
5.2.5.2.3 Interworking at the AGCF/VGW where a diverted call is presented to a private ISDN (T
Reference point) . 59
5.2.5.2.4 Interworking at the AGCF/VGW where partial rerouting is requested from a private ISDN (T
Reference point) . 60
5.2.6 MCID . 61
5.2.6.1 Actions at the Outgoing AGCF/VGW . 61
5.2.6.2 Actions at the incoming AGCF/VGW . 61
5.2.7 Explicit Communication Transfer (ECT) . 61
5.2.7.1 Actions at the Outgoing AGCF/VGW . 61
5.2.7.1.1 Coincident S and T reference point . 61
5.2.7.1.2 T reference point. 62
5.2.7.2 Actions at the incoming AGCF/VGW . 62
5.2.7.2.1 Coincident S and T reference point . 62
5.2.7.2.2 T reference point. 64
5.2.8 Subaddressing (SUB) . 65
5.2.8.1 Actions at the Outgoing AGCF/VGW . 66
5.2.8.2 Actions at the incoming AGCF/VGW . 66
5.2.9 Closed User Group (CUG) . 66
5.2.9.1 Actions at the Outgoing AGCF/VGW . 66
5.2.9.2 Actions at the incoming AGCF/VGW . 67
5.2.10 User User Service (UUS) . 67
5.2.10.1 Actions at the Outgoing AGCF/VGW . 68
5.2.10.1.1 Service 1 (UUS1) implicit . 68
5.2.10.1.2 Service 1 (UUS1) explicit. 68
5.2.10.1.3 Service 2 . 69
5.2.10.1.4 Service 3 . 70
5.2.10.2 Actions at the incoming AGCF/VGW . 71
5.2.10.2.1 Service 1 (UUS1) implicit . 71
5.2.11 Call Waiting (CW) . 71
5.2.11.1 Actions at the Outgoing AGCF/VGW . 71
5.2.11.2 Actions at the incoming AGCF/VGW . 72
5.2.11.2.1 Procedure at coincident S and T reference point . 72
5.2.11.2.2 Notification received at T reference point . 72
5.2.12 Terminal Portability (TP) . 73
5.2.12.1 Actions at the outgoing AGCF/VGW . 73
5.2.12.1.1 Invocation at coincident S and T reference point . 73
5.2.12.1.2 Notification received at T reference point . 73
5.2.12.2 Actions at the incoming AGCF/VGW . 73
5.2.12.2.1 Invocation at coincident S and T reference point . 73
5.2.12.2.2 Notification received at T reference point . 74
5.2.13 Three-party (3PTY) . 74
5.2.13.1 Notification received from the network . 75
5.2.13.2 Invocation at coincident S and T reference point . 75
5.2.13.3 Notification received at T reference point . 78
5.2.13.4 Notification received at T reference point . 78
5.2.14 Completion of Call to Busy Subscriber (CCBS) . 79
5.2.14.1 Actions at the outgoing AGCF/VGW . 79
5.2.14.2 Actions at the incoming AGCF/VGW . 79
5.2.15 Completion of Calls on No Reply (CCNR) . 80
5.2.15.1 Actions at the outgoing AGCF/VGW . 80
5.2.15.2 Actions at the incoming AGCF/VGW . 80
5.2.16 Advice Of Charge AOC . 80
ETSI
5 ETSI TS 183 036 V3.5.1 (2012-08)
5.2.16.1 Actions at the outgoing AGCF/VGW . 81
5.2.17 Message Waiting Indication (MWI) . 82
5.3 DSS1 layer 2 failure . 83
5.3.1 DSS 1 data link reset and data link failure procedures in the outgoing AGCF/VGW . 83
5.3.2 DSS 1 data link reset and data link failure procedures in the incoming AGCF/VGW . 84
5.3.3 Release by the outgoing AGCF/VGW . 84
5.3.4 Release by the AGCF/VGW . 85
5.4 Service operation . 85
5.4.1 Call related service operation. 85
5.4.1.1 Malicious Call Identification (MCID) . 85
5.4.1.2 Explicit Communication Transfer (ECT) . 85
5.4.1.3 Closed User Group (CUG) . 86
5.4.1.4 Three Party Service (3PTY) . 86
5.4.1.5 Completion of Call to Busy Subscriber (CCBS) . 86
5.4.1.6 Completion of Calls on No Reply (CCNR) . 86
5.4.2 Call independent service configuration. 86
5.4.2.1 Communication Diversion Services (CDIV). 87
5.4.2.1.1 Communication Diversion activation . 87
5.4.2.1.2 Communication Diversion deactivation . 88
5.4.2.1.3 Communication Diversion interrogation . 89
5.4.2.1.4 Activation Status Notification Diversion . 90
5.4.2.2 Message Waiting Indication (MWI). 90
5.4.2.2.1 Activation of Message Waiting Indication (MWI) . 90
5.4.2.2.2 Deactivation of Message Waiting Indication (MWI) . 91
Annex A (normative): Keypad Procedures . 92
A.1 Generic procedure at the AGCF/VGW side . 92
A.2 Generic procedure at the AS side . 92
Annex B (normative): SDP mapping for ISDN 7 kHz service and Inter-working . 93
B.1 Originating Side . 93
B.2 Terminating side . 93
Annex C (normative): Timers . 95
Annex D (normative): Overlap Sending . 100
D.1 Multiple INVITE Overlap Dialling Procedures (Optional) . 100
D.1.1 Actions at the originating VGW/AGCF . 100
D.1.1.1 Terminating overlap signalling at originating VGW/AGCF. 100
D.1.1.2 Sending of INVITE without determining the end of address signalling . 100
D.1.1.3 Special handling of 404 Not Found and 484 Address Incomplete responses after sending of INVITE
without determining the end of address signalling . 101
D.1.2 Actions at the terminating VGW/AGCF . 108
D.2 In-Dialog Method (Optional) . 108
D.2.1 Actions at the originating VGW/AGCF . 108
D.2.1.1 Terminating overlap signalling at originating VGW/AGCF. 108
D.2.1.2 Sending of INVITE without determining the end of address signalling . 109
D.2.2 Actions at the terminating VGW/AGCF . 116
Annex E (normative): Direct Dialling in . 117
E.1 Multiple INVITEs Method (Optional) . 117
E.1.1 Actions at the incoming AGCF/VGW. 117
E.1.1.1 Receipt of Subsequent INVITE messages . 117
E.2 In-Dialog Method (Optional) . 118
E.2.1 Actions at the incoming AGCF/VGW. 118
E.2.1.1 Receipt of Subsequent INVITE messages . 118
ETSI
6 ETSI TS 183 036 V3.5.1 (2012-08)
Annex F (informative): Handling and interworking of DSS1 messages and Information
Elements . 121
Annex G (informative): Message flows . 123
G.1 Three party . 123
G.2 Explicit Communication Transfer (ECT) . 129
Annex H (informative): Use of progress indicators . 131
Annex I (informative): Bibliography . 135
Annex J (informative): Change History . 136
History . 137

ETSI
7 ETSI TS 183 036 V3.5.1 (2012-08)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
ETSI
8 ETSI TS 183 036 V3.5.1 (2012-08)
1 Scope
The present document specifies the stage three Protocol Description of the signalling interworking between ISDN DSS1
protocol and SIP based on the concatenation of ES 283 027 [1], ES 283 003 [5] with EN 300 899-1 [2]. The
concatenation method describes only the SIP/ISDN parameter mapping without ISUP procedures. In addition direct
inter-working not supported by this concatenation of these existing inter-working documents will be described.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] ETSI ES 283 027: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Endorsement of the SIP-ISUP Interworking between the IP
Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks
[3GPP TS 29.163 (Release 7), modified]".
[2] ETSI EN 300 899-1 (V1.1.2): "Integrated Services Digital Network (ISDN);Signalling System
No.7; Interworking between ISDN User Part (ISUP) version 2 and Digital Subscriber Signalling
System No. One (DSS1); Part 1: Protocol specification [ITU-T Recommendation Q.699,
modified]".
[3] Void.
[4] ETSI ES 282 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Functional architecture".
[5] ETSI ES 283 003 (V2.5.1): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); IP Multimedia Call Control Protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 [3GPP TS 24.229
[Release 7], modified]".
[6] ETSI TS 183 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Originating Identification
Presentation (OIP) and Originating Identification Restriction (OIR); Protocol specification".
[7] ETSI TS 183 008: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services Terminating Identification
Presentation (TIP) and Terminating Identification Restriction (TIR); Protocol specification".
[8] ETSI TS 183 004: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN) PSTN/ISDN simulation services: Communication
Diversion (CDIV); Protocol specification".
[9] ETSI TS 183 005: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services: Conference (CONF); Protocol
specification".
ETSI
9 ETSI TS 183 036 V3.5.1 (2012-08)
[10] ETSI TS 183 010: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Signalling Control Protocol; Communication HOLD
(HOLD) PSTN/ISDN simulation services; Protocol specification".
[11] ETSI EN 300 052-1: "Integrated Services Digital Network (ISDN); Multiple Subscriber Number
(MSN) supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[12] ETSI EN 300 055-1: "Integrated Services Digital Network (ISDN); Terminal Portability (TP)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[13] ETSI EN 300 058-1: "Integrated Services Digital Network (ISDN); Call Waiting (CW)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[14] ETSI EN 300 061-1: "Integrated Services Digital Network (ISDN); Subaddressing (SUB)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[15] ETSI EN 300 064-1: "Integrated Services Digital Network (ISDN); Direct Dialling In (DDI)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[16] ETSI EN 300 092-1: "Integrated Services Digital Network (ISDN); Calling Line Identification
Presentation (CLIP) supplementary service; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
[17] ETSI EN 300 093-1: "Integrated Services Digital Network (ISDN); Calling Line Identification
Restriction (CLIR) supplementary service; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
[18] ETSI EN 300 097-1: "Integrated Services Digital Network (ISDN); Connected Line Identification
Presentation (COLP) supplementary service; Digital Subscriber Signalling System No. One
(DSS1) protocol; Part 1: Protocol specification".
[19] ETSI EN 300 098-1: "Integrated Services Digital Network (ISDN); Connected Line Identification
Restriction (COLR) supplementary service; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
[20] ETSI EN 300 130-1: "Integrated Services Digital Network (ISDN); Malicious Call
Identification (MCID) supplementary service; Digital Subscriber Signalling System
No. One (DSS1) protocol; Part 1: Protocol specification".
[21] ETSI EN 300 138-1: "Integrated Services Digital Network (ISDN); Closed User Group (CUG)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[22] ETSI EN 300 141-1: "Integrated Services Digital Network (ISDN); Call Hold (HOLD)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[23] ETSI EN 300 185-1: "Integrated Services Digital Network (ISDN); Conference call, add-on
(CONF) supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[24] ETSI EN 300 188-1: "Integrated Services Digital Network (ISDN); Three-Party (3PTY)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[25] ETSI EN 300 196-1: "Integrated Services Digital Network (ISDN); Generic functional protocol for
the support of supplementary services; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
ETSI
10 ETSI TS 183 036 V3.5.1 (2012-08)
[26] ETSI TS 183 006: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN) PSTN/ISDN simulation services Message Waiting Indication".
[27] ETSI EN 300 485 (V1.2.3): "Integrated Services Digital Network (ISDN); Definition and usage of
cause and location in Digital Subscriber Signalling System No. One (DSS1) and Signalling System
No.7 ISDN User Part (ISUP) [ITU-T Recommendation Q.850 (1998), modified]".
[28] ETSI TS 183 054: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Protocol specification Closed
User Group (CUG)".
[29] ETSI EN 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. One (DSS1) protocol; Signalling network layer for circuit-mode basic call control;
Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
[30] Void.
[31] ETSI TS 183 047: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN IMS Supplementary Services; Advice Of
Charge (AOC)".
[32] ETSI TS 183 028: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Common Basic Communication procedures; Protocol
specification".
[33] Void.
[34] ETSI EN 300 207-1: "Integrated Services Digital Network (ISDN); Diversion supplementary
services; Digital Subscriber Signalling System No. One (DSS1); Part 1: Protocol specification".
[35] ETSI EN 300 369-1: "Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[36] ETSI TS 183 029: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services: Explicit Communication
Transfer (ECT); Protocol specification".
[37] ETSI EN 300 182-1: "Integrated Services Digital Network (ISDN); Advice of Charge (AOC)
supplementary service; Digital Subscriber Signalling System No. One (DSS1) protocol;
Part 1: Protocol specification".
[38] ETSI EN 300 286-1: "Integrated Services Digital Network (ISDN); User-to-User
Signalling (UUS) supplementary service; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
[39] ETSI EN 300 359-1: "Integrated Services Digital Network (ISDN); Completion of Calls to Busy
Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
[40] ETSI EN 301 065-1: "Integrated Services Digital Network (ISDN); Completion of Calls on No
Reply (CCNR) supplementary service; Digital Subscriber Signalling System No. One (DSS1)
protocol; Part 1: Protocol specification".
[41] Void.
[42] ETSI TS 183 043: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS-based PSTN/ISDN Emulation Stage 3 specification".
[43] ETSI EN 301 798 (V1.1.1): "Services and Protocols for Advanced Networks (SPAN); Anonymous
Call Rejection (ACR) Supplementary Service; Service description".
[44] IETF RFC 4575 (2006): "A Session Initiation Protocol (SIP) Event Package for Conference State".
[45] IETF RFC 4244: "An Extension to the Session Initiation Protocol (SIP) for Request History
Information".
ETSI
11 ETSI TS 183 036 V3.5.1 (2012-08)
[46] ETSI TS 183 016: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Malicious Communication
Identification (MCID); Protocol Specification".
[47] IETF RFC 3966: "The tel URI for Telephone Numbers".
[48] IETF RFC 4825: "The Extensible Markup Language (XML) Configuration Access
Protocol (XCAP)".
[49] ETSI TS 183 023: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Extensible Markup
Language (XML) Configuration Access Protocol (XCAP) over the Ut interface for Manipulating
NGN PSTN/ISDN Simulation Services".
[50] IETF RFC 4916: "Connected Identity in the Session Initiation Protocol (SIP)".
[51] IETF RFC 4040: "RTP Payload Format for a 64 kbit/s Transparent Call".
[52] IETF RFC 3264: "An Offer/Answer Model with Session Description Protocol (SDP)".
[53] IETF RFC 3261: "SIP: Session Initiation Protocol".
[54] ITU-T Recommendation Q.931: "ISDN user-network interface layer 3 specification for basic call
control".
[55] ITU-T Recommendation Q.939: "Typical DSS 1 service indicator codings for ISDN
telecommunications services".
[56] ITU-T Recommendation T.38: "Procedures for real-time Group 3 facsimile communication over
IP networks".
[57] ETSI EN 300 745-1 (V1.2.4): "Integrated Services Digital Network (ISDN); Message Waiting
Indication (MWI) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[58] ETSI TS 183 015: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN) NGN Signalling Control Protocol Communication
Waiting (CW) PSTN/ISDN simulation services".
[59] ETSI TS 124 642: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Completion of Communications to Busy Subscriber
(CCBS) and Completion of Communications by No Reply (CCNR) using IP Multimedia (IM)
Core Network (CN) subsystem; Protocol Specification (3GPP TS 24.642 Release 8)".
[60] ITU-T Recommendation G.711: "Pulse code modulation (PCM) of voice frequencies".
[61] ITU-T Recommendation Q.850: "Usage of cause and location in the Digital Subscriber Signalling
System No. 1 and the Signalling System No. 7 ISDN User Part".
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] draft-johnston- sipping-cc-uui-02: "Transporting User to User Information for Call Centers using
SIP".
[i.2] ITU-T Recommendation Q.763: "Signalling System No. 7 - ISDN User Part formats and codes".
[i.3] ITU-T Recommendation H.221: "Frame structure for a 64 to 1920 kbit/s channel in audiovisual
teleservices".
[i.4] ITU-T Recommendation G.725: "System aspects for the use of the 7 kHz audio codec within
64 kbit/s".
ETSI
12 ETSI TS 183 036 V3.5.1 (2012-08)
[i.5] ITU-T Recommendation G.722: "7 kHz audio-coding within 64 kbit/s".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
en bloc receiving: procedure, used in call establishment of an incoming call, to enable the network to send called party
number digits to the user in a single message
NOTE: See EN 300 403-1 [29].
en bloc sending: procedure, used in call establishment of an outgoing call, to enable the user to send called party
number digits to the network in a single message
NOTE: See EN 300 403-1 [29].
incoming AGCF/VGW: physical entity, which can be combined with a SIP UNI or NNI, terminates incoming calls
using SIP protocol and originates outgoing calls using the DSS1 protocol
outgoing AGCF/VGW: physical entity, which can be combined with an ISDN access device, terminates incoming
calls using DSS1 and originates outgoing calls using the SIP protocol
overlap receiving: procedure, used in call establishment of an incoming call, to enable the network to send called party
number digits to the user in successive messages, as and when they are made available from the remote network
NOTE: See EN 300 403-1 [29].
overlap sending: procedure, used in call establishment of an outgoing call, to enable the user to send called party
number digits to the network in successive messages, as and when they are made available by the user
NOTE: See EN 300 403-1 [29].
SIP Phone 3,1 KHz: native SIP endpoint that supports the G.711 [60] codec. Such an endpoint may inter-work with an
ISDN user in the IMS/PSTN for the 3,1 KHz bearer service due to both endpoints commonly supporting the G.711 [60]
codec
SIP Phone 7 KHz: native SIP endpoint that supports the G.722 codec. However, such an endpoint may not inter-work
with an |ISDN user in the IMS/PSTN for the 7 KHz bearer service as the VGW/AGCF/MGCF advertises the
CLEARMODE codec (which enables a H.221 [i.3] structure to be carried transparently - as described in G.725 [i.4])
rather than the G.722 [i.5] codec
NOTE: It is assumed that the CLEARMODE codec is not
...