ETSI TS 186 025-2 V2.2.1 (2011-06)

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IMS/PES Performance Benchmark; Part 2: Subsystem Configurations and Benchmarks

RTS/TISPAN-06062-NGN-R2

General Information

• Status: Published
• Publication Date: 08-Jun-2011
• Technical Committee: TISPAN 6 - TISPAN Testing
• Current Stage: 12 - Completion
• Due Date: 15-Jun-2011
• Completion Date: 09-Jun-2011

Standards Content (Sample)

Technical Specification
Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
IMS/PES Performance Benchmark;
Part 2: Subsystem Configurations and Benchmarks

2 ETSI TS 186 025-2 V2.2.1 (2011-06)

Reference
RTS/TISPAN-06062-NGN-R2
Keywords
IMS, ISDN, performance, PSTN
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2011.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 ETSI TS 186 025-2 V2.2.1 (2011-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 System Under Test (SUT) . 9
5 Use cases . 11
5.1 ISDN Use cases . 11
5.1.1 ISDN - ISDN Use case 1 . 11
5.1.1.1 ISDN - ISDN Scenario 1.1 Basic call with BC = speech - enblock sending . 11
5.1.1.2 ISDN - ISDN Scenario 1.2 Basic call with BC = speech - enblock sending . 11
5.1.1.3 ISDN - ISDN Scenario 1.3 Basic call - overlap sending with BC = speech . 11
5.1.1.4 ISDN - ISDN Scenario 1.4 Basic call with BC = 3,1 KHz audio - Fax with 33,6 kbit/s . 11
5.1.1.5 ISDN - ISDN Scenario 1.5 Basic call with BC = 3,1 KHz audio - Fax with 14,4 kbit/s . 11
5.1.1.6 ISDN - ISDN Scenario 1.6 Basic call with BC = 3,1 kHz with PI#3 . 11
5.1.1.7 ISDN - ISDN Scenario 1.7 Basic call with BC = 3,1 kHz with PI#3 . 11
5.1.1.8 ISDN - ISDN Scenario 1.8 Basic call with BC = 3,1 kHz - Modem V.32 bis (4,8 kbit/s, 9,6 kbit/s
14,4 kbit/s) . 11
5.1.1.9 ISDN - ISDN Scenario 1.9 Basic call with BC = 3,1 kHz - Modem V.34 (up to 33,6 kbit/s) . 12
5.1.1.10 ISDN - ISDN Scenario 1.10 Basic call with BC = UDI - enblock sending. 12
5.1.1.11 ISDN - ISDN Scenario 1.11 Basic call with BC = UDI - enblock sending. 12
5.1.1.12 ISDN - ISDN Scenario 1.12 - called user is user determined user busy . 12
5.1.1.13 ISDN - ISDN Scenario 1.13 - no answer from the called user . 12
5.1.2 ISDN- PSTN Use case 2 . 12
5.1.2.1 ISDN - PSTN Scenario 2.1 Basic call with BC = speech - enblock sending . 12
5.1.2.2 ISDN - PSTN Scenario 2.2 Basic call with BC = speech - enblock sending . 12
5.1.2.3 ISDN - PSTN Scenario 2.3 Basic call - overlap sending with BC = speech . 12
5.1.2.4 ISDN - PSTN Scenario 2.4 Basic call with BC = 3,1 KHz audio - Fax with 33,6 kbit/s . 12
5.1.2.5 ISDN - PSTN Scenario 2.5 Basic call with BC = 3,1 KHz audio - Fax with 14,4 kbit/s . 12
5.1.2.6 ISDN - PSTN Scenario 2.6 Basic call with BC = 3,1 kHz - Modem V.32 bis (4,8 kbit/s, 9,6 kbit/s
14,4 kbit/s) . 13
5.1.2.7 ISDN - PSTN Scenario 2.7 Basic call with BC = 3,1 kHz - Modem V.34 (up to 33,6 kbit/s) . 13
5.1.2.8 ISDN - PSTN Scenario 2.8 - called user is user determined user busy . 13
5.1.2.9 ISDN - PSTN Scenario 2.9 - no answer from the called user . 13
5.1.3 PSTN - ISDN Use Case 3 . 13
5.1.3.1 PSTN - ISDN Scenario 3.1 Basic call, the call is released from the calling user . 13
5.1.3.2 PSTN - ISDN Scenario 3.2 Basic call, the call is released from the called user . 13
5.1.3.3 PSTN - ISDN Scenario 3.3 Basic call with BC = 3,1 KHz audio - Fax with 33,6 kbit/s . 13
5.1.3.4 PSTN - ISDN Scenario 3.4 Basic call with BC = 3,1 KHz audio - Fax with 14,4 kbit/s . 13
5.1.3.5 PSTN - ISDN Scenario 3.5 Basic call with BC = 3,1 KHz audio - Modem V.90 . 13
5.1.3.6 PSTN - ISDN Scenario 3.6 - called user is user determined user busy . 13
5.1.3.7 PSTN - ISDN Scenario 3.7 - no answer from the called user . 14
5.1.4 PSTN - PSTN Use case 4 . 14
5.1.4.1 PSTN - PSTN Scenario 4.1 Basic call, the call is released from the calling user . 14
5.1.4.2 PSTN - PSTN Scenario 4.2 Basic call, the call is released from the called user . 14
5.1.4.3 PSTN - PSTN Scenario 4.3 Basic call with Fax with 33,6 kBit/s (Super G3 Fax) . 14
5.1.4.4 PSTN - PSTN Scenario 4.4 Basic call with Fax with 14,4 kBit/s . 14
5.1.4.5 PSTN - PSTN Scenario 4.5 Basic call with BC = 3,1 KHz audio - Modem V.34 (up to 33,6
kbit/s) . 14
ETSI
4 ETSI TS 186 025-2 V2.2.1 (2011-06)
5.1.4.6 PSTN - PSTN Scenario 4.6 Basic call with BC = 3,1 KHz audio - Modem V.32 bis (4,8 kbit/s,
9,6 kbit/s 14,4 kbit/s) . 14
5.1.4.7 PSTN - PSTN Scenario 4.7 - called user is user busy . 14
5.1.4.8 PSTN - PSTN Scenario 4.8 - no answer from the called user . 14
5.2 Metrics and design objectives . 15
5.2.1 Delay probability - non-ISDN or mixed (ISDN - non-ISDN) environment . 15
5.2.2 Speech quality analysis . 18
5.3 Call Profiler Traffic Patterns . 19
5.3.1 Saw Tooth . 19
5.3.2 Blast . 19
5.3.3 Rolling Blast . 20
5.3.4 Ramp . 20
5.3.5 Steady Call Rate . 20
5.3.6 Poisson Distribution . 20
5.4 Load Concepts and Definitions . 21
5.4.1 Processor Load . 21
5.4.2 Reference Call and Workload Factors . 21
Annex A (informative): Calls flows . 23
Annex B (informative): Load profiles examples . 30
Annex C (informative): Load traffic calculation . 31
C.1 General . 31
C.2 Calculation base on originated/ terminated traffic . 31
C.3 ITU-T load definitions. 32
C.3.1 Reference loads . 32
C.3.1.1 Reference load on incoming interexchange circuits . 32
C.3.1.2 Reference load on subscriber lines (originating traffic) . 32
C.4 High load reserve . 33
C.5 Overload . 33
Annex D (informative): Test reports . 34
D.1 Example of a Call Detail report . 34
D.2 Example of a call summary report . 35
D.3 Example of a voice summary report . 35
D.4 Example of a voice quality detail report. 36
Annex E (informative): Bibliography . 37
Annex F (informative): Change history . 38
History . 39

ETSI
5 ETSI TS 186 025-2 V2.2.1 (2011-06)
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://webapp.etsi.org/IPR/home.asp).
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).
The present document is part 2 of a multi-part deliverable covering the IMS/NGN Performance Benchmark, as
identified below:
Part 1: "Core Concepts";
Part 2: "Subsystem Configurations and Benchmarks";
Part 3: "Traffic Sets and Traffic Profiles";
Part 4: "Reference Load network quality parameters".
ETSI
6 ETSI TS 186 025-2 V2.2.1 (2011-06)
1 Scope
The present document is for an initial release of a PSTN/ISDN Emulation Sub-system (PES) performance benchmark.
The same tests can be used also for legacy PSTN/ISDN networks or for inter-working tests between PSTN/ISDN
emulation subsystem and legacy PSTN and ISDN. The metrics measured and reported are for performance of this
subsystem under a communications application load.
The present document is the second part of the multi-part deliverable which consists of four parts.
TS 186 025-1 [1] contains the overall benchmark descriptions, architectures, processes, and information models that are
common to all specific benchmarking scenarios.
The present document contains the specific benchmarking use-cases and scenarios, along with scenario specific
metrics and design objectives. It also defines the SUT configuration parameters. This part also contains any
required extensions to the overall descriptions present in the present document, if necessary for the specific
scenario.
TS 186 025-3 [i.1] defines an initial benchmark test through the specification of a traffic set, traffic-time profile and
benchmark test procedure.
TS 186 025-4 [i.2] defines Reference Load network quality parameters for the use cases defined in the present
document.
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 TS 186 025-1: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS/PES Performance Benchmark; Part 1: Core Concepts".
[2] ITU-T Recommendation Q.543: "Digital exchange performance design objective".
[3] ETSI TS 183 036: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); ISDN/SIP interworking; Protocol specification".
[4] ETSI TS 124 229: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; IP multimedia call control protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP TS 24.229)".
[5] ETSI TS 183 043: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS-based PSTN/ISDN Emulation; Stage 3 specification".
ETSI
7 ETSI TS 186 025-2 V2.2.1 (2011-06)
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] ETSI TS 186 025-3: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS/PES Performance Benchmark Part 3 : Traffic Sets and
Traffic Profiles".
[i.2] ETSI TS 186 025-4: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN); IMS/PES Performance Benchmark; Part 4: Reference Load
network quality parameters".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
background load: workload applied to an SUT during a benchmark test, for the purpose of consuming SUT resources
during a benchmark test and changing the traffic intensity at which the capacity of the SUT is reached
benchmark report: document generated at the conclusion of a test procedure containing the metrics measured during
the execution of the test and/or computed from the data collected in the benchmark log
benchmark test: procedure by which a test system interacts with a System Under Test to measure its behaviour and
produce a benchmark report
configuration: specification of a subset of IMS/PES architectural elements and metrics for which collection of
benchmark tests can be defined
design objective: probabilistic model of delay and failure requirements for SUT, associated with a use-case, specified
by threshold values and probabilities for delay and scenario failure.
idle load: load that is not dependent on the traffic or other external activities
maximum capacity: maximum processor load that a processor can handle without rejecting new calls
metric: performance measurement of SUT reported in a benchmark report
parameter: attribute of a SUT, test system, system load, or traffic set whose value is set externally and prior to a
benchmark test, and whose value affects the behaviour of the benchmark test
processor load: part of time the processor executes work, normally expressed in percent
NOTE: The processor load consists of Idle load, Traffic load and Usage load.
Reference Call (RC): basic ISUP to ISUP call connected through two MGW in the same MGC domain
test parameters: parameters whose values determine the behaviour of a benchmark test
test procedure: specification of the steps to be performed by a benchmark test
test scenario: specific path through a use-case, whose implementation by a test system creates a system load
test system: collection of hardware and software which presents a system load to a system under test and collects data
on the system under test's performance, from which metrics can be computed
traffic load: load that results from handling traffic events that are directly related to calls; this load varies with the
traffic intensity
traffic-time profile: evolution of the average scenario over a time interval
ETSI
8 ETSI TS 186 025-2 V2.2.1 (2011-06)
traffic set: mixture of traffic scenarios
usage load: load that is reserved for the administrations operation and maintenance activities during busy hour
workload: number of reference calls per second (RC/s)
NOTE: It is calculated by multiplying calls per second by its corresponding WLF.
workload factor: traffic load for different types of calls in relation to the traffic load of the reference call (ISUP call)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A-BGF Access Border Gateway Function
AGCF Access Gateway Control Function
AGF Access Gateway Function
AS Application Server
BC Bearer Capability
BHCA Busy Hour Call Attempts
BRI Basic Rate Interface
CAPS Call Attempts Per Second
CLIP Calling Line Identification Presentation
CW Communication Waiting
DO Design Objective
FM Feature Manager
i-BGF Interconnect Border Gateway Function
IMS IP Multimedia Subsystem
ISDN Integrated Services Digital Network
ISUP ISDN User Part
MGC Media GateWay Controler
MGC Media Gateway Controller
MGCP Media Gateway Control Protocol
MGF Media Gateway Function
MGW Media GateWay
MHT Mean Holding Time
NGN Next Generation Networks
P-CSCF Proxy-Call Session Control Function
PES PSTN/ISDN Emulation Sub-system
PESQ Perceptual Evaluation of Speech Quality
PRI Primary Rate Interface
PSTN Public Switched Telecommunications Network
RACS Resource Admission Control Subsystem
RC Reference Call
RG Residential Gateway
RTP Real Time Protocol
S-CSCF Serving Call Session Control Function
SIP Session Initial Protocol
SUT System Under Test
UA User Equipment
UDI Unrestricted Digital Information
VGW Voice Gateway
WLF WorkLoad Factor
ETSI
9 ETSI TS 186 025-2 V2.2.1 (2011-06)
4 System Under Test (SUT)
The IMS/PES performance benchmark covers benchmark tests for the PSTN/ISDN Emulation Sub-system (PES), The
same tests can be used also for legacy PSTN/ISDN networks or for inter-working tests between PSTN/ISDN emulation
subsystem and legacy PSTN and ISDN. The following functional entities appear to be necessary from the perspective of
specifying information flows and ensuring the interoperability of services:
• Access Gateway Analogue line function;
• Access Gateway BRI function;
• Access Gateway PRI function;
• Residential Gateway Analogue line function;
• Residential Gateway BRI function;
• Trunk Gateway function;
• Access Call Server function;
• Transit Call Server function;
• Packet Handler Gateway function;
• Media Gateway Controller function;
• Media Server Control Function;
• Customer Location function;
• IN Access Subsystem;
• SIP Server Access Function;
• Trunk Signalling Gateway.
The Functional Architecture is shown in figure 1 in such a way that it can be seen that multiple implementation
architectures are possible. There are some fundamental points that should not be missed however. The first of these is
that we have gateways that convert legacy interfaces such as national analogue PSTN Z reference points and ISDN S or
T reference points into NGN interfaces. These are usually thought of as being H.248 interfaces but that is not the only
interface that can be used. Depending on the service set MGCP or interfaces carrying suitable information in SIP can be
used. The key point is that the information flow can carry the stimulus information traditionally needed in national
PSTNs to carry both line and register signalling from customers as well as specialised service signalling.
ETSI
PPPrrresesesenenenccceee
SeSeSerrrvvveeerrr
SeSeSeSerrrrvvvviiiicccceeee C C C C
Service 3
SeSeSerrrvvviiiccceee 3 3 3
SeSeSeSerrvrvrvviiiicccceeee B B B B SeSeSeSerrrrvvvviiiicccceeee 2 2 2 2
SeSeSeSerrrrvvvviiiicccceeee 1 1 1 1
SeSeSeServrvrvrviiiicccceeee A A A A
10 ETSI TS 186 025-2 V2.2.1 (2011-06)
NONONONOTTTTEEEE::::
LiLiLiLinnnneeeessss i i i innnnssssiiiide tde tde tde thhhhe ge ge ge grrrreeeeyyyy a a a arrrrea aea aea aea arrrre pe pe pe puuuurrrreeeellllyyyy i i i illlllllluuuussssttttrrrratatatatiiiivvvve. e. e. e.
ASASASAS
IIIInnnnforforforformmmmaaaattttiiiioooonnnn fl fl fl floooowwwwssss  mmmmaaaayyyy
hhhh MaMaMaMasssstttteeeerrrr
Be tBe tBe tBe thhhhoooouuuugh gh gh gh tttthhhhe e e e DDDDiiiissssttttrrrriiiibbbbuuuutotototorrrr
CCCCuuuussssttttomomomomerererer
OOOOrrrr d d d diiiirrrreeeecccctttt as as as as  anananan  iiiimmmmpppplllleeeemmmmenenenenttttaaaattttiiiionononon o o o oppppttttiiiioooonnnn
DaDaDaDattttaaaa
jjjj
CCCCuuuussssttttomomomomerererer
kkk LoLoLoLoccccaaaattttiiiionononon
iiiiii
iiii
m
LoLoLoLoccccaaaallll
TrTrTrTruuuunnnnkkkk
DaDaDaDattttaaaa
DiDiDiDiststststrrrriiiibbbbuuuuttttoooorrrr
RoRoRoRouuuuttttiiiinnnngggg
PPPPSSSSTTTTN/N/N/N/IIIISSSSDNDNDNDN
TTTToooopolpolpolpolooooggggyyyy
OtOtOtOthhhheeeerrrr
fff
EmEmEmEmuuuullllaaaattttiiiioooonnnn
HiHiHiHiddddiiiingngngng
NGNGNGNGNNNN’’’’ssss
f
SSSSuuuubbbbsyssyssyssystttteeeemmmm
GaFFFuncuncunctewtttiiioooannny
ff
AGAGAGAGCCCCFFFF
SGSGSGSGCCCCFFFF
eeee
bbbb
S/S/S/S/TTTT
cccc
ININININ
PSPSPSPSTTTTNNNN////IIIISSSSDDDDNNNN
AGAGAGAGCCCCFFFF TGTGTGTGCFCFCFCF
SeSeSeSerrrrvvvviiiicccceeeessss
AGAGAGAGFFFF
PSPSPSPSTTTTNNNN
gggg
GqGqGqGq’’’’
////
RARARARACCCCSSSS ISISISISDDDDNNNN
d
ZZZZ
aaaa
AGAGAGAGFFFF MGMGMGMGFFFF
TrTrTrTraaaannnnssssppppoooorrrrtttt
OtOtOtOthhhheeeerrrr
A-A-A-A-BGBGBGBGFFFF I-I-I-I-BBBBGGGGFFFF
RGRGRGRG
NGNGNGNGNNNN’’’’ssss
Figure 1: Overview of Functional Entities
AS AS
S-CSCF S-CSCF
P-CSCF
SIP
SIP FM
MGC
FM
MGC
UA
UA
AGCF
VGW
RTP
MGF MGF
Figure 2: AGCF/VGW session processing model
ETSI
11 ETSI TS 186 025-2 V2.2.1 (2011-06)
5 Use cases
This clause defines a set of basic use cases which can be provided simultaneously. Described are ISDN - ISDN,
ISDN - PSTN and PSTN-PSTN use cases. They can be handled by the PSTN/ISDN emulation subsystem, by the legacy
PSTN/ISDN or as inter-working between PSTN/ISDN emulation subsystem and legacy PSTN and ISDN. Described are
user equipment actions.
5.1 ISDN Use cases
5.1.1 ISDN - ISDN Use case 1
5.1.1.1 ISDN - ISDN Scenario 1.1 Basic call with BC = speech - enblock sending
This use case represents the case when the call establishment using en-bloc sending is performed correctly. The call is
released from the calling user.
5.1.1.2 ISDN - ISDN Scenario 1.2 Basic call with BC = speech - enblock sending
This scenario represents the case when the call establishment using en-bloc sending is performed correctly. The call is
released from the called user.
5.1.1.3 ISDN - ISDN Scenario 1.3 Basic call - overlap sending with BC = speech
This scenario represents the case when the call establishment using overlap sending is performed correctly. The call is
released from the calling user.
5.1.1.4 ISDN - ISDN Scenario 1.4 Basic call with BC = 3,1 KHz audio - Fax with
33,6 kbit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are not activated. The call is released from the calling user.
5.1.1.5 ISDN - ISDN Scenario 1.5 Basic call with BC = 3,1 KHz audio - Fax with
14,4 kbit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are not activated. The call is released from the calling user.
5.1.1.6 ISDN - ISDN Scenario 1.6 Basic call with BC = 3,1 kHz with PI#3
This scenario represents the case when in the active call state (N10) the 3,1 kHz transfer is performed correctly. The call
is released from the calling user.
5.1.1.7 ISDN - ISDN Scenario 1.7 Basic call with BC = 3,1 kHz with PI#3
This scenario represents the case when in the active call state (N10) the 3,1 kHz transfer is performed correctly The call
is released from the called user.
5.1.1.8 ISDN - ISDN Scenario 1.8 Basic call with BC = 3,1 kHz - Modem V.32 bis
(4,8 kbit/s, 9,6 kbit/s 14,4 kbit/s)
This scenario represents the case when in the active call state (N10) the 3,1 kHz transfer is performed correctly The call
is released from the calling user.
ETSI
12 ETSI TS 186 025-2 V2.2.1 (2011-06)
5.1.1.9 ISDN - ISDN Scenario 1.9 Basic call with BC = 3,1 kHz - Modem V.34 (up to
33,6 kbit/s)
This scenario represents the case when in the active call state (N10) the 3,1 kHz transfer is performed correctly The call
is released from the calling user.
5.1.1.10 ISDN - ISDN Scenario 1.10 Basic call with BC = UDI - enblock sending
This scenario represents the case when the call establishment using en-bloc sending is performed correctly. The call is
released from the calling user.
5.1.1.11 ISDN - ISDN Scenario 1.11 Basic call with BC = UDI - enblock sending
This scenario represents the case when the call establishment using en-bloc sending is performed correctly. The call is
released from the called user.
5.1.1.12 ISDN - ISDN Scenario 1.12 - called user is user determined user busy
This scenario represents the case, when the called user is user determined user busy the network initiate call clearing to
the calling user with cause value # 17.
5.1.1.13 ISDN - ISDN Scenario 1.13 - no answer from the called user
This scenario represents the case when there is no answer from the called user ("no user responding"), the network
initiate call clearing to the calling user with the cause value # 18.
5.1.2 ISDN- PSTN Use case 2
5.1.2.1 ISDN - PSTN Scenario 2.1 Basic call with BC = speech - enblock sending
This scenario represents the case when the call establishment using en-bloc sending is performed correctly. The call is
released from the calling user.
5.1.2.2 ISDN - PSTN Scenario 2.2 Basic call with BC = speech - enblock sending
This scenario represents the case when the call establishment using en-bloc sending is performed correctly. The call is
released from the called user.
5.1.2.3 ISDN - PSTN Scenario 2.3 Basic call - overlap sending with BC = speech
This scenario represents the case when the call establishment using overlap sending. The call is released from the
calling user. The call is released from the calling user.
5.1.2.4 ISDN - PSTN Scenario 2.4 Basic call with BC = 3,1 KHz audio - Fax with
33,6 kbit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are not activated. The call is released from the called user.
5.1.2.5 ISDN - PSTN Scenario 2.5 Basic call with BC = 3,1 KHz audio - Fax with
14,4 kbit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are not activated. The call is released from the called user.
ETSI
13 ETSI TS 186 025-2 V2.2.1 (2011-06)
5.1.2.6 ISDN - PSTN Scenario 2.6 Basic call with BC = 3,1 kHz - Modem V.32 bis
(4,8 kbit/s, 9,6 kbit/s 14,4 kbit/s)
This scenario represents the case when in the active call state (N10) the 3,1 kHz transfer is performed correctly The call
is released from the calling user.
5.1.2.7 ISDN - PSTN Scenario 2.7 Basic call with BC = 3,1 kHz - Modem V.34 (up
to 33,6 kbit/s)
This scenario represents the case when in the active call state (N10) the 3,1 kHz transfer is performed correctly The call
is released from the calling user.
5.1.2.8 ISDN - PSTN Scenario 2.8 - called user is user determined user busy
This scenario represents the case, when the called user is user determined user busy. the network initiates call clearing
to the calling user with cause value # 17.
5.1.2.9 ISDN - PSTN Scenario 2.9 - no answer from the called user
This scenario represents the case when there is no answer from the called user ("no user responding"), the network
initiates call clearing to the calling user with the cause value # 18.
5.1.3 PSTN - ISDN Use Case 3
5.1.3.1 PSTN - ISDN Scenario 3.1 Basic call, the call is released from the calling
user
This scenario represents the case when the call establishment is performed correctly. The call is released from the
calling user.
5.1.3.2 PSTN - ISDN Scenario 3.2 Basic call, the call is released from the called user
This scenario represents the case when the call establishment is performed correctly. The call is released from the called
user.
5.1.3.3 PSTN - ISDN Scenario 3.3 Basic call with BC = 3,1 KHz audio - Fax with
33,6 kbit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are not activated.
5.1.3.4 PSTN - ISDN Scenario 3.4 Basic call with BC = 3,1 KHz audio - Fax with
14,4 kbit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are deactivated.
5.1.3.5 PSTN - ISDN Scenario 3.5 Basic call with BC = 3,1 KHz audio - Modem V.90
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are not activated.
5.1.3.6 PSTN - ISDN Scenario 3.6 - called user is user determined user busy
This scenario represents the case, when the called user is user determined user busy the network initiate call clearing to
the calling user.
ETSI
14 ETSI TS 186 025-2 V2.2.1 (2011-06)
5.1.3.7 PSTN - ISDN Scenario 3.7 - no answer from the called user
This scenario represents the case when there is no answer from the called user ("no user responding"), the network
initiate call clearing to the calling user.
5.1.4 PSTN - PSTN Use case 4
5.1.4.1 PSTN - PSTN Scenario 4.1 Basic call, the call is released from the calling
user
This scenario represents the case when the call establishment is performed correctly. The call is released from the
calling user.
5.1.4.2 PSTN - PSTN Scenario 4.2 Basic call, the call is released from the called user
This scenario represents the case when the call establishment is performed correctly. The call is released from the called
user.
5.1.4.3 PSTN - PSTN Scenario 4.3 Basic call with Fax with 33,6 kBit/s (Super G3
Fax)
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are deactivated.
5.1.4.4 PSTN - PSTN Scenario 4.4 Basic call with Fax with 14,4 kBit/s
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly. The echo cancellers in the GW are activated.
5.1.4.5 PSTN - PSTN Scenario 4.5 Basic call with BC = 3,1 KHz audio - Modem
V.34 (up to 33,6 kbit/s)
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are deactivated.
5.1.4.6 PSTN - PSTN Scenario 4.6 Basic call with BC = 3,1 KHz audio - Modem
V.32 bis (4,8 kbit/s, 9,6 kbit/s 14,4 kbit/s)
This scenario represents the case when in the active call state (N10) the Fax transfer on the media and B-channels is
performed correctly and the echo cancellers in the GW are activated.
5.1.4.7 PSTN - PSTN Scenario 4.7 - called user is user busy
This scenario represents the case, when the called user is user determined user busy the network initiate call clearing to
the calling user.
5.1.4.8 PSTN - PSTN Scenario 4.8 - no answer from the called user
This scenario represents the case when there is no answer from the called user ("no user responding"), the network
initiate call clearing to the calling user.
ETSI
15 ETSI TS 186 025-2 V2.2.1 (2011-06)
5.2 Metrics and design objectives
5.2.1 Delay probability - non-ISDN or mixed (ISDN - non-ISDN)
environment
This clause defines delay parameters related to non-ISDN environment and mixed (ISDN - non-ISDN) environment.
The values will be defined in TS 186 025-4 [i.2].
Table 1: Delay parameters related to non-ISDN environment
and mixed (ISDN - non-ISDN) environment
Meaning of timers Parameter Q.543 IMS, PES equivalent
Detailed description
Local exchange call request delay - originating outgoing and internal traffic connections
ANALOGUE Clause 2.3.2.1 [2] PES [5]
SUBSCRIBER LINES For ANALOGUE SUBSCRIBER LINES
local exchange call For ANALOGUE SUBSCRIBER LINES, connected to the AGCF or VGW
request delay - call request delay is defined as the Call request delay is defined as the interval
originating outgoing interval from the instant when the off- from the instant when the off-hook
and internal traffic hook condition is recognizable at the condition is recognizable at the subscriber
connections subscriber line interface of the exchange line interface of the AGCF/VGW until the
until the exchange begins to apply dial AGCF/VGW begins to apply dial tone to
tone to the line. The call request delay the line.
interval is assumed to correspond to the
period at the beginning of a call attempt
during which the exchange is unable to
receive any call address information from
the subscriber.
ISDN SUBSCRIBER Clause 2.3.2.2 [2] ISDN [3]
LINES Local exchange call request delay - Call Call request delay is defined as the interval
local exchange call request delay is defined as the interval from the instant at which the SETUP
request delay - from the instant at which the SETUP message has been received from the
Overlap sending message has been received from the subscriber signalling system until the
subscriber signalling system until the SETUP ACKNOWLEDGE message is
SETUP ACKNOWLEDGE message is passed back to the subscriber signalling
passed back to the subscriber signalling system.
system. IMS [4]
Call request delay is defined as the interval
from the instant at which the INVITE
message has been received from the SIP
subscriber until the 100 Trying from the
SBC/P-CSCF is passed back to the
subscriber.
ISDN SUBSCRIBER Clause 2.3.2.3 [2] ISDN [3]
LINES For DIGITAL SUBSCRIBER LINES using For ISDN using en-bloc sending, call
local exchange call en-bloc sending, call request delay is request delay is defined as the interval
request delay- defined as the interval from the instant at from the instant at which the SETUP
Enblock sending which the SETUP message is received message is received from the subscriber
from the subscriber signalling system signalling system until the CALL
until the call proceeding message is PROCCEDING message is passed back to
passed back to the subscriber signalling the subscriber signalling system.
system.
ETSI
16 ETSI TS 186 025-2 V2.2.1 (2011-06)
Meaning of timers Parameter Q.543 IMS, PES equivalent
Detailed description
Alerting sending delay for terminating traffic (the users are in different locations, controlled by different
S-CSCF/P-CSCF)
ANALOGUE Clause 2.3.6.1.1 [2] PES [5]
SUBSCRIBER LINES
For calls terminating on ANALOGUE For calls terminating on ANALOGUE
Alerting sending SUBSCRIBER LINES, alerting sending SUBSCRIBER LINES, alerting sending
Delay for terminating delay is defined as the interval from the delay is defined as the interval from the
traffic instant when the last digit is available for instant when the last digit is available for
processing in the exchange until the processing in the AGCF until the ringing
ringing tone is sent backwards toward the tone is sent toward the calling user.
calling user.
ISDN Clause 2.3.6.1.2 [2] ISDN [3]
SUBSCRIBER LINES For calls termining on DIGITAL For calls termining on ISDN, the alerting
Alerting sending SUBSCRIBER LINES, the alerting sending delay is defined as the interval
Delay for terminating sending delay is defined as the interval from the instant that an ALERTING
traffic from the instant that an ALERTING message is received from the digital
message is received from the digital subscriber line signalling to the instant at
subscriber line signalling system to the which an AGCF/VGW sends the 180
instant at which an ADDRESS Ringing backward toward the calling user.
COMPLETE message is passed to the
interexchange signalling system or IMS [5]
ringing tone is sent backward toward the Call request delay is defined as the interval
calling user. from the instant at which the 180 Ringing is
received from the terminating subscriber
until the 180 Ringing is passed back to the
originating subscriber.
Alerting sending delay for internal traffic (the user are in same locations, controlled by same
AGCF/VGW or P-CSCF)
Clause 2.3.6.2.1 [2] PES [5]
ANALOGUE For calls terminating on ANALOGUE
SUBSCRIBER LINES For calls terminating on ANALOGUE SUBSCRIBER LINES, alerting sending
Alerting sending SUBSCRIBER LINES, alerting sending delay is defined as the interval from the
Delay for internal delay is defined as the interval from the instant that the signalling information is
traffic instant that the signalling information is available for processing in the AGCF/
available for processing in the exchange VGW until Ringing tone is sent towards the
until ringing tone is applied to an calling subscriber.
ANALOGUE calling subscriber.
Clause 2.3.6.2.2 [2] ISDN [3]
For calls terminating on ISDN, alerting
ISDN SUBSCRIBER For internal calls terminating on DIGITAL sending delay is defined as the interval
LINES SUBSCRIBER LINES originating from from the instant that an ALERTING
Alerting sending DIGITAL SUBSCRIBER LINES, ale
...