ISO/IEC TR 18053:2000
(Main)Information technology — Telecommunications and information exchange between systems — Glossary of definitions and terminology for Computer Supported Telecommunications Applications (CSTA) Phase III
Information technology — Telecommunications and information exchange between systems — Glossary of definitions and terminology for Computer Supported Telecommunications Applications (CSTA) Phase III
This Technical Report contains definitions of technical terms and acronyms used throughout the suite of publications comprising CSTA Phase III.
Technologies de l'information — Télécommunications et échange d'information entre systèmes — Glossaire de definition et terminologie pour applications en télécommunications supportées par ordinateur (CSTA) en phase III
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TECHNICAL ISO/IEC
REPORT TR
18053
First edition
2000-07-15
Information technology —
Telecommunications and information
exchange between systems — Glossary of
definitions and terminology for Computer
Supported Telecommunications
Applications (CSTA) Phase III
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Glossaire de définition et terminologie pour
applications en télécommunications supportées par ordinateur (CSTA) en
phase III
Reference number
ISO/IEC TR 18053:2000(E)
©
ISO/IEC 2000
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ISO/IEC TR 18053:2000(E)
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ISO/IEC TR 18053:2000(E)
Contents
Foreword x
Introduction xi
1 Scope 1
2 Normative references 1
3 Definitions and Acronyms 1
3.1 Account Code 1
3.2 ACD 1
3.3 ACD Group 1
3.4 ACD Group Device 1
3.5 Acknowledgement 1
3.6 Acknowledgement Model 1
3.7 ACSE 1
3.8 Active Call 1
3.9 Active Participation 1
3.10 Addressibility 1
3.11 Addressable Appearance 1
3.12 Addressable Device 2
3.13 Agent 2
3.14 Agent Group Association 2
3.15 Agent Identifier 2
3.16 Agent Logging State 2
3.17 Agent Password 2
3.18 Agent State 2
3.19 Agent State Model 2
3.20 Alerting 2
3.21 Alerting Call 2
3.22 Alerting Connection State 2
3.23 Allocation Condition 2
3.24 Analogue 2
3.25 Analogue Line 2
3.26 ANI 2
3.27 API 2
3.28 Appearance 2
3.29 Appearance Type 3
3.30 Application Association 3
3.31 Application Context 3
3.32 Application Domain 3
3.33 Application Entity 3
3.34 Application Entity Type 3
3.35 Application Service Element 3
3.36 Application Working Domain 3
3.37 ASE 3
3.38 ASN 3
3.39 Association Control Service Element 3
3.40 Asynchronous 3
3.41 ATM 3
3.42 Atomic Acknowledgement Model 3
3.43 Auditory Apparatus 3
3.44 Auditory Apparatus Identifier 3
3.45 Auditory Apparatus Type 4
3.46 Authorisation Code 4
3.47 Auto-Answer 4
3.48 Auto Work Mode 4
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ISO/IEC TR 18053:2000(E)
3.49 Automatic Call Distributor4
3.50 Automatic Number Identification 4
3.51 B Channel 4
3.52 Bandwidth 4
3.53 Bearer Mode 4
3.54 Bearer Services 4
3.55 Bit Rate 4
3.56 BRI 4
3.57 Bridging 4
3.58 BRI-ISDN 4
3.59 Button 5
3.60 Button Associated Number 5
3.61 Button Association 5
3.62 Button Function 5
3.63 Button Identifier 5
3.64 Button Label 5
3.65 Call 5
3.66 Call Appearance 5
3.67 Call Associated Event 5
3.68 Call Associated Feature 5
3.69 Call Control Event 5
3.70 Call Control Information Element 5
3.71 Call Detail Record 5
3.72 Call Event Report 5
3.73 Call Identifier 5
3.74 Call Linkage 5
3.75 Call Qualification Data 5
3.76 Call Related Information 6
3.77 Call State 6
3.78 Call Thread 6
3.79 Callback 6
3.80 CallBack Call 6
3.81 Called Line Identity 6
3.82 CallID Only Connection ID 6
3.83 Calling Line Identification 6
3.84 Call-Type Monitor 6
3.85 Capabilities Exchange 6
3.86 CCIE 6
3.87 CDR 6
3.88 Central Office (CO) Line 6
3.89 Central Office (CO) Switch 6
3.90 Channel 6
3.91 Character Set 7
3.92 Classifier 7
3.93 CODEC 7
3.94 Complete Connection ID 7
3.95 Compound Call State 7
3.96 Computing Domain 7
3.97 Computing Function 7
3.98 Computing Sub-Domain 7
3.99 Conference Call 7
3.100 Connected State 7
3.101 Connection 7
3.102 Connection Identifier 7
3.103 Connection Mode 7
3.104 Connection Rate 7
3.105 Connection State 7
3.106 Connection State Transition 7
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ISO/IEC TR 18053:2000(E)
3.107 Connection State Transition Graph 8
3.108 Consultation Call 8
3.109 Correlator Data 8
3.110 CSTA 8
3.111 CSTA Application 8
3.112 CSTA Client 8
3.113 CSTA Device 8
3.114 CSTA Domain 8
3.115 CSTA Object 8
3.116 CTI 8
3.117 D Channel 8
3.118 Data Call 8
3.119 Data Connection 8
3.120 Data Path 8
3.121 Data Path State 8
3.122 Data Rate 8
3.123 DD 8
3.124 Default Value 8
3.125 Defined Parameter Type 9
3.126 Delay Tolerance 9
3.127 Device 9
3.128 Device Capabilities 9
3.129 Device Category 9
3.130 Device Configuration 9
3.131 Device Element 9
3.132 Device Element Combination 9
3.133 Device Feature 9
3.134 Device Identifier 9
3.135 Device Identifier Format 9
3.136 Device Identifier Status 9
3.137 Device Media Characteristics 9
3.138 Device Only Connection ID 9
3.139 Device State 9
3.140 Device Type 10
3.141 Device-Type Monitor 10
3.142 Dialled Number Identification Service 10
3.143 Digital Line 10
3.144 Directory Number 10
3.145 Display 10
3.146 Display ID 10
3.147 DND 10
3.148 DNIS 10
3.149 Do Not Disturb 10
3.150 Domain 10
3.151 DTMF 10
3.152 Dual Tone Multiple Frequency 10
3.153 Dynamic Device Identifier 10
3.154 Dynamic Feature Availability 10
3.155 Encoding Algorithm 11
3.156 End-to-End 11
3.157 Entering Distribution 11
3.158 Error Value 11
3.159 Event 11
3.160 Event Cause 11
3.161 Event Report 11
3.162 Event Template 11
3.163 Extension 11
3.164 Flow Direction 11
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ISO/IEC TR 18053:2000(E)
3.165 Forwarding 11
3.166 Forwarding Condition 11
3.167 Gain 11
3.168 Global Call 11
3.169 GlobalCallID 11
3.170 Group Device 12
3.171 Held Call 12
3.172 Hold 12
3.173 Hold Connection State 12
3.174 Holding Device 12
3.175 Hookswitch 12
3.176 Hookswitch Association 12
3.177 Hunt Group 12
3.178 ID 12
3.179 Identifier Parameter Type 12
3.180 Inband 12
3.181 Inbound Call 12
3.182 Incoming Call 12
3.183 Integrated Services Digital Network 12
3.184 Intrude 13
3.185 I/O Cross Reference Identifier 13
3.186 I/O Services 13
3.187 ISDN 13
3.188 ISO 13
3.189 ITU-T 13
3.190 Join 13
3.191 KBPS 13
3.192 Lamp 13
3.193 Lamp Colour 13
3.194 Lamp Identifier 13
3.195 Lamp Label 13
3.196 Lamp Mode 13
3.197 LAN 13
3.198 Last Redirection Device 13
3.199 Line 13
3.200 Logical Device Event 13
3.201 Logical Device Features 14
3.202 Logical Display 14
3.203 Logical Element 14
3.204 MAD 14
3.205 Maintenance Event 14
3.206 Manual Mode 14
3.207 Media 14
3.208 Media Access Device 14
3.209 Media Call Characteristics 14
3.210 Media Class 14
3.211 Media Service 14
3.212 Media Service Instance 14
3.213 Media Service Type 14
3.214 Media Stream 14
3.215 Media Stream Channel 14
3.216 Media Stream Event 14
3.217 Media Stream ID 14
3.218 Media Stream Information 14
3.219 Media Type 14
3.220 Message 15
3.221 Message Identifier 15
3.222 Meta Parameter Type 15
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ISO/IEC TR 18053:2000(E)
3.223 Microphone 15
3.224 Monitor Type 15
3.225 Monitoring Services 15
3.226 Multi-Stage Dialling 15
3.227 Multi-Step Acknowledgement Model 15
3.228 Mute 15
3.229 Named Device Type 15
3.230 Network Interface Device 15
3.231 NID 15
3.232 Null Connection State 15
3.233 Null Correlator Data 15
3.234 ODP 15
3.235 Offered Mode 16
3.236 Off-Hook 16
3.237 On-Hook 16
3.238 Operator Device 16
3.239 Operator Group Device 16
3.240 OSI 16
3.241 Other Device 16
3.242 Other Group Device 16
3.243 Outband (Out of Band) 16
3.244 Outbound Call 16
3.245 Outgoing Call 16
3.246 PAC 16
3.247 Parameter Type 16
3.248 Parameter Type Template 16
3.249 Park 16
3.250 Park Device 16
3.251 Party 17
3.252 PBX 17
3.253 PDU 17
3.254 Physical Base 17
3.255 Physical Component 17
3.256 Physical Device Event 17
3.257 Physical Device Features 17
3.258 Physical Display 17
3.259 Physical Element 17
3.260 Pick 17
3.261 Pick Group 17
3.262 PICS 17
3.263 PICS Proforma 17
3.264 PISN 17
3.265 Plain Old Telephone Service 17
3.266 Position Pointer 17
3.267 POTS 18
3.268 Pre-Delivery 18
3.269 Predictive Dial Call 18
3.270 Predictive Dialling 18
3.271 PRI-ISDN 18
3.272 Primary Call 18
3.273 Private Event 18
3.274 Profile 18
3.275 Prompting 18
3.276 Protocol Information Conformance Statement 18
3.277 Protocol Specific Information 18
3.278 PSTN 18
3.279 PTN 18
3.280 Queue 18
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ISO/IEC TR 18053:2000(E)
3.281 Queued Call 18
3.282 Recall 18
3.283 Redirection Device 18
3.284 Remote Operations 19
3.285 Reorder Condition 19
3.286 Reporting Criteria 19
3.287 Request 19
3.288 Response 19
3.289 Ring Count 19
3.290 Ring Cycle 19
3.291 Ring Mode 19
3.292 Ring Pattern 19
3.293 Ringback Tone 19
3.294 Ringer 19
3.295 Ringer Identifier 19
3.296 Ringing Mode 19
3.297 ROSE 19
3.298 Routeing Cross Reference Identifier 19
3.299 Routeing Device 19
3.300 Routeing Dialogue 19
3.301 Routeing Registration Identifier 20
3.302 Routeing Server 20
3.303 RSVP 20
3.304 Secondary Call 20
3.305 Service 20
3.306 Service Boundary 20
3.307 Service Request 20
3.308 Service Response 20
3.309 Service Template 20
3.310 Signalling Capability 20
3.311 Silent Intrusion 20
3.312 Silent Monitoring 20
3.313 Silent Participation 20
3.314 Simple Call State 20
3.315 Snapshot Services 20
3.316 Speaker 20
3.317 Special Resource 21
3.318 Special Resource Domain 21
3.319 Special Resource Function 21
3.320 Special Resource Sub-Domain 21
3.321 Speech 21
3.322 SRF 21
3.323 State 21
3.324 Static Device Identifier 21
3.325 Station 21
3.326 Status Filter 21
3.327 Status Reporting Services 21
3.328 Switching Domain 21
3.329 Switching Function 21
3.330 Switching Function Capabilities 21
3.331 Switching Function Service 21
3.332 Switching Sub-Domain 21
3.333 Switching Sub-Domain Name 21
3.334 System Status Registration Identifier 22
3.335 System Status Services 22
3.336 TE 22
3.337 Telephony Process 22
3.338 Telephony Service 22
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ISO/IEC TR 18053:2000(E)
3.339 Telephony Tone 22
3.340 Template 22
3.341 TON 22
3.342 Trunk 22
3.343 User 22
3.344 User Data 22
3.345 User-User Information Element 22
3.346 UUIE 22
3.347 Voice 22
3.348 Voice Attribute 22
3.349 Voice Call 22
3.350 Voice Response Unit 23
3.351 Voice Stream Data 23
3.352 Voice Unit 23
3.353 Voice Unit State 23
3.354 VRU 23
4 Terms defined elsewhere 23
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ISO/IEC TR 18053:2000(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the
development of International Standards through technical committees established by the respective organization to deal with
particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft
International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this Technical Report may be the subject of patent rights. ISO
and IEC shall not be held responsible for identifying any or all such patent rights.
Technical Report ISO/IEC 18053 was prepared by ECMA (as Technical Report ECMA TR/72) and was adopted, under a
special “fast-track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its
approval by national bodies of ISO and IEC.
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ISO/IEC TR 18053:2000(E)
Introduction
This Technical Report provides definitions and terminology for Standard ECMA-269 (International Standard ISO/IEC 18051),
Services for Computer Supported Telecommunications Applications (CSTA) Phase III, Fourth Edition, published by ECMA in
2000. It is part of a suite of Standards and Technical Reports for Phase III of CSTA. These Standards and Technical Reports
reflect agreements of ECMA member companies on Phase III of CSTA. All of the Standards and Technical Reports in the suite
are based on the practical experience of ECMA member companies and each one represents a pragmatic and widely-based
consensus.
This Technical Report was created from glossary material originally appearing in CSTA Phase II (ECMA-217), from the versit
CTI Encyclopedia (Version 1.0), which was contributed to ECMA by versit. Additional definitions and acronyms were
contributed by ECMA member companies.
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TECHNICAL REPORT ISO/IEC TR 18053:2000(E)
Information technology - Telecommunications and information exchange between
systems - Glossary of definitions and terminology for Computer Supported
Telecommunications Applications (CSTA) Phase III
1Scope
This Technical Report contains definitions of technical terms and acronyms used throughout the suite of publications
comprising CSTA Phase III.
2 Normative reference
The following normative document contains provisions which, through reference in this text, constitute provisions of this
Technical Report. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply.
However, parties to agreements based on this Technical Report are encouraged to investigate the possibility of applying the
most recent edition of the normative document indicated below. For undated references, the latest edition of the normative
document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
ISO/IEC 18051:2000, Information technology - Telecommunications and information exchange between systems -
Services for Computer Supported Telecommunications Applications (CSTA) Phase III.
3 Definitions and Acronyms
3.1 Account Code
A computing sub-domain specific code applied to a call for accounting purposes. Also called account information or account
info.
3.2 ACD
Automatic Call Distributor, Automatic Call Distribution. See Automatic Call Distributor.
3.3 ACD Group
See ACD Group Device.
3.4 ACD Group Device
A group device that has a ACD and which represents an explicit association between the ACD and the distributed-to devices.
3.5 Acknowledgement
An acknowledgement is a message that is sent from the switching function to the computing function and visa-versa, and that
informs the requesting computing or switching function whether an earlier request was accepted or rejected.
3.6 Acknowledgement Model
The model by which a service provides a response (acknowledgement) to a requesting function (or client). Each individual
service specifies the acknowledgement model it supports. See Atomic Acknowledgement Model and Multi-Step
Acknowledgement Model.
3.7 ACSE
Association Control Service Element. See Association Control Service Element.
3.8 Active Call
With respect to a particular device, an active call is a call whose connection with the device is in the Connected connection
state.
3.9 Active Participation
This feature is typically used to allow intrusion with the ability to speak and listen by a supervisor into an ACD Call.
3.10 Addressibility
The property of an appearance of having an identifier associated with it.
3.11 Addressable Appearance
An appearance that can be referenced by the switching function via a device identifier.
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ISO/IEC TR 18053:2000(E)
3.12 Addressable Device
A device with an associated device identifier. See Device, CSTA Device, Device Identifier.
3.13 Agent
A CSTA user associated with one or more ACD devices or ACD groups and authorised to act on behalf of the provider of the
CSTA application.
3.14 Agent Group Association
An association of an ACD group with an agent.
3.15 Agent Identifier
An identifier by which an agent can be observed and/or controlled within the switching function.
3.16 Agent Logging State
The state of the agent with respect to a particular ACD System. Its possible values are NULL and LOGGED ON.
3.17 Agent Password
A data element used to authenticate an agent associated with a device with an ACD device or ACD group.
3.18 Agent State
A state that an agent may take in relation to an ACD device or ACD group and the calls associated with the ACD device or
ACD group.
3.19 Agent State Model
The model by which the switching function maintains agent states for the ACDs and ACD groups associated with an agent.
3.20 Alerting
A call with a connection in the Alerting connection state is said to be alerting the subject device of that connection.
3.21 Alerting Call
A call for which the subject connection is in the Alerting state. This usually implies that the telephone instrument is ringing.
3.22 Alerting Connection State
A connection state in which a device is alerting (e.g., ringing) or is being presented (offered) to a device. This indicates an
attempt to connect a call to a device. The device may be a device such as a telephone station. The device may also be a routeing
or distribution type of device.
3.23 Allocation Condition
For the Make Predictive Call service, an indication of whether a calling device (e.g., the agent to which the call is to be
connected) has been allocated for the call.
3.24 Analogue
Analogue transmission (such as POTS signals) consists of sound travelling over lines as variations in a electrical current.
Analogue signals are very vulnerable to interference and noise on the line. They are also limited to the bandwidth of amplifiers,
analogue-to-digital converters, and other network equipment.
3.25 Analogue Line
A POTS telephone line that utilises analogue transmission. Signals on an analogue line use a set of standard in-band tones for
call progress and DTMF signalling.
3.26 ANI
Automatic Number Identification. See Automatic Number Identification.
3.27 API
Application Programming Interface.
3.28 Appearance
A component of a device's logical element at which a connection to a call is permitted. A single logical element may have
multiple appearances. Also called call appearance.
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ISO/IEC TR 18053:2000(E)
3.29 Appearance Type
An attribute whose value is a categorisation of appearances in terms of their interaction with other appearances. Possible values
include selected-standard, basic-standard, basic-bridged, exclusive-bridged, shared-bridged, Independent-shared-bridged,
Interdependent-shared-bridged.
3.30 Application Association
A cooperative relationship between two application entity invocations that provides the necessary frame of reference between
them in order that they may interwork effectively.
3.31 Application Context
An explicitly identified set of application service elements, related options and any other necessary information for the
interworking of application entities on an application association.
3.32 Application Domain
The union of one switching sub-domain and one computing sub-domain.
3.33 Application Entity
An active element, within an application process, embodying a set of capabilities which is pertinent to OSI and which is defined
for the Application Layer, that corresponds to a specific application entity type (without any extra capabilities being used).
3.34 Application Entity Type
A description of a class of application service elements in terms of a set of capabilities defined for the Application Layer.
3.35 Application Service Element
A set of application functions that provides a capability for the interworking of application entity invocations for a specific
purpose.
3.36 Application Working Domain
The subset of devices (and the calls and connections associated with those devices) inside a switching sub-domain that are
controllable and/or monitorable over a Service Boundary.
3.37 ASE
Application Service Element. See Application Service Element.
3.38 ASN
Abstract Syntax Notation.
3.39 Association Control Service Element
An element of an application process whose primary purpose is to establish and release an application association between two
application entity instances and to determine the application context of that association.
3.40 Asynchronous
A method of invoking a function such that the process which is doing the invoking continues in parallel with the invoked
function. See Synchronous.
3.41 ATM
Asynchronous Transfer Mode.
3.42 Atomic Acknowledgement Model
An acknowledgement model supported by a service in which the positive acknowledgement of a request is accomplished in a
single step. Receipt of an acknowledgement from such a service guarantees that all parameters supplied in the request are
correct and that the service was successfully completed. See Acknowledgement Model and Multi-Step Acknowledgement
Model.
3.43 Auditory Apparatus
A component used to convert electronic signals into voice/speech and/or vice/versa.
3.44 Auditory Apparatus Identifier
An identifier by which an auditory apparatus in a physical element (in a device) can be observed and/or controlled.
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ISO/IEC TR 18053:2000(E)
3.45 Auditory Apparatus Type
An attribute subcategorising the auditory apparatus physical component. Possible values include handset, headset,
speakerphone, speaker-only phone, microphone-only, and other.
3.46 Authorisation Code
A code provided to the switching function that is used to check if a computing function user is authorised to perform a given
service.
3.47 Auto-Answer
A feature of a device allowing it to automatically answer a call.
3.48 Auto Work Mode
A feature of an ACD implementation that causes an agent state to automatically transition to the WorkingAfterCall agent state
after an ACD agent completes a call
3.49 Automatic Call Distributor
A device that distributes calls presented to it to other devices. An Automatic Call Distributor may be associated with the
devices to which calls are distributed, but itself consists only of the distribution mechanism.
3.50 Automatic Number Identification
A service provided by the telephone network that provides the billing directory number associated with a calling device. The
number provided by ANI will not always be the same as the number of the calling device. Outside of North America, this
service is called Calling Line Identification (CLID).
3.51 B Channel
A 56 or 64 Kbps channel on an ISDN or proprietary PBX line that can carry voice or data.
3.52 Bandwidth
The information carrying potential of a physical or logical connection. For analogue connections it is the range of frequencies
that a circuit can handle. With POTS, for example, the bandwidth is very narrow. The broader the range of frequencies, the
more information the line can handle. The typical POTS circuit has a bandwidth of 3100 Hz centred between 300 Hz and
3400 Hz. For digital connections, the bandwidth is the data rate of the circuit or channel.
3.53 Bearer Mode
The type of coding, or compression that the telephone network is permitted to perform on the bit stream carried on the bearer
channel. In POTS, the bearer mode will always be 3.1 kHz voice. The “speech” bearer mode is the most compressible, “voice”
less so, and so on. A data bearer mode implies that the data stream will not be compressed by the network (the connection is
“clear channel”).
3.54 Bearer Services
Telephone Network Services designed to transfer information from point A to point B.
3.55 Bit Rate
A media call characteristic, indicating whether the media stream of the call has a constant data rate (i.e., is isochronous) or a
variable bit rate.
3.56 BRI
Basic Rate Interface.
3.57 Bridging
A directory number is assigned to more than one device such that when an incoming call is targeted for the directory number,
all devices are prompted for the call. The devices in question are said to have bridged device configurations of various kinds.
See Device Configuration.
3.58 BRI-ISDN
An ITU-T-defined “Basic-Rate Interface” ISDN connection consisting of two B channels of 64 Kbps each for voice or data,
and one D channel of 16 Kbps for control (2B+D). See PRI-ISDN.
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ISO/IEC TR 18053:2000(E)
3.59 Button
A button is a physical (i.e., represented by hardware) or logical (i.e., represented by switching function software) component of
a device that controls a certain function or action assigned to the button.
3.60 Button Associated Number
A device identifier in diallable digits format associated with the feature or service assigned to a button.
3.61 Button Association
An attribute of a lamp that identifies a button to which the lamp is associated.
3.62 Button Function
The feature or service that is performed in response to activating (e.g., pressing) a button. The button function may be assigned
to the button by the switching function.
3.63 Button Identifier
An identifier associated with a button used to observe and control it through the Service Boundary. It is used in combination
with the Device Identifier of the device of which it is a component.
3.64 Button Label
A character string representing the label by which a user refers to a button.
3.65 Call
A switching function communications relationship (generally) between two or more devices. During some circumstances,
including set-up and release, there may be only one device.
3.66 Call Appearance
See Appearance.
3.67 Call Associated Event
Events related to the Call Associated Features Services.
3.68 Call Associated Feature
A collection of features (including DTMF digit generation and collection, telephony tone generation and collection, and user
information transmission) controlled by the Call Associated Feature Services.
3.69 Call Control Event
An event that reports changes to information related to calls.
3.70 Call Control Information Element
An information type that denotes the type of call control information available in a sub- domain. Possible values include ISDN,
ATM (B-ISDN), ISO-Ethernet, RSVP, Other (switching sub-domain specific).
3.71 Call Detail Record
An information element describing information about a call relevant to charging for the call or tracking its progress through a
call centre. Call Detail Records are transmitted from a switching function to a computing function via an event report.
3.72 Call Event Report
Messages that indicate a change in state of one or more connections in the switching sub-domain.
3.73 Call Identifier
A Call Identifier is a reference associated with a call whereby the call can be known to, and identified by, the switching,
computing and special resource functions through the call’s life.
3.74 Call Linkage
A set of information elements associated with a call that identify the global call to which the call belongs, and the call thread to
which the call belongs.
3.75 Call Qualification Data
A collection of data (e.g., wrap code, walk away codes, hold reasons, consult reasons, transfer reasons) that describes how a
call is being handled or was handled by a user.
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ISO/IEC TR 18053:2000(E)
3.76 Call Related Information
Additional information associated with a call, including account information and authorisation codes.
3.77 Call State
A list of the connection states of all of the devices involved in a call (also called the Compound Call State). See also Simple
Call State.
3.78 Call Thread
A set of calls that are related to each other because they are part of same telephony process.
3.79 Callback
This telephony feature allows a device to request that the originally called (e.g., busy) device return the call when the originally
called device becomes available.
3.80 CallBack Call
A call that is automatically established by the switching function in response to a prior service request or feature when the
target device is in an appropriate state to accept the call.
3.81 Called Line Identity
A service supplied by the public telephone network to identify a logical called device. For example, two 1-800 numbers might
both be translated to a single real number. the Called Line Identity information distinguishes which of the two numbers was
originally dialled.
In North America this ser
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