Call recording software
Encyclopedia
Call recording software records telephone conversations over PSTN or VoIP in a digital audio file format
. Call recording is distinct from call logging
and tracking, which record details about the call but not the conversation; however, software may include both recording and logging functionality.
, especially for pandemic planning.
The actual recording takes place on a recording system with software for the management of calls and security of recordings. Most call recording software applications rely on an analogue signal via either a call recording adapter or a telephony board.
Digital lines cannot be recorded unless the call recording system can capture and decode the proprietary digital signalling, which some modern systems can. Sometimes a method is supplied with a digital PBX that can process the proprietary signal (usually a conversion box) before being channeled to a computer for recording. Alternatively a hardware adapter can be used on a telephone handset as the digital signal is converted at that point to analogue.
VoIP Recording
is usually restricted to streaming media
recorders or software developed by the softphone
or IP PBX
creator. There are also solutions which use packet capture
technology to passively record VoIP phone calls on the LAN
.
Hardware is required to make the voice signal available to the computer equipment. Some of today's call recording software is sold as a turn-key solution with hardware.
Direct recording of mobile phone
calls requires a hardware adapter connected to the handset. There are many other ways to record mobile phone calls. One approach is to route calls via a new PBX system linked to the recorder. However, such systems are typically expensive to purchase and change the way that calls are made, incurring running costs. Another approach links directly into existing recording systems from a PDA phone. Both of these approaches allow recordings to be timestamp
ed, often required for legal reasons. Recording directly onto mobile devices does not provide a legally valid recording.
Audio file format
An audio file format is a file format for storing digital audio data on a computer system. This data can be stored uncompressed, or compressed to reduce the file size. It can be a raw bitstream, but it is usually a container format or an audio data format with defined storage layer.-Types of...
. Call recording is distinct from call logging
Call logging
Call logging is the process of collecting phone call data, analysing this data, and then reporting on the telephone network's cost, performance, capacity and quality of service . It should not be confused with telephone tapping or call recording...
and tracking, which record details about the call but not the conversation; however, software may include both recording and logging functionality.
Considerations
Call recording is becoming increasingly important, with technology changing and working habits becoming more mobile. Addressing mobile recording is now the subject of many financial regulators' recommendations. It is also increasingly important to business continuity planningBusiness continuity planning
Business continuity planning “identifies [an] organization's exposure to internal and external threats and synthesizes hard and soft assets to provide effective prevention and recovery for the organization, whilst maintaining competitive advantage and value system integrity”. It is also called...
, especially for pandemic planning.
The actual recording takes place on a recording system with software for the management of calls and security of recordings. Most call recording software applications rely on an analogue signal via either a call recording adapter or a telephony board.
Digital lines cannot be recorded unless the call recording system can capture and decode the proprietary digital signalling, which some modern systems can. Sometimes a method is supplied with a digital PBX that can process the proprietary signal (usually a conversion box) before being channeled to a computer for recording. Alternatively a hardware adapter can be used on a telephone handset as the digital signal is converted at that point to analogue.
VoIP Recording
VoIP recording
Voice over Internet Protocol recording is a subset of telephone recording or voice logging, first used by call centers and now being used by all types of businesses...
is usually restricted to streaming media
Streaming media
Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a streaming provider.The term "presented" is used in this article in a general sense that includes audio or video playback. The name refers to the delivery method of the medium rather...
recorders or software developed by the softphone
Softphone
A softphone is a software program for making telephone calls over the Internet using a general purpose computer, rather than using dedicated hardware. Often a softphone is designed to behave like a traditional telephone, sometimes appearing as an image of a phone, with a display panel and buttons...
or IP PBX
IP PBX
An IP PBX is a business telephone system designed to deliver voice or video over a data network and interoperate with the normal Public Switched Telephone Network ....
creator. There are also solutions which use packet capture
Packet capture
Packet capture is the act of capturing data packets crossing a computer network. Deep packet capture is the act of capturing, at full network speed, complete network packets crossing a network with a high traffic rate...
technology to passively record VoIP phone calls on the LAN
Län
Län and lääni refer to the administrative divisions used in Sweden and previously in Finland. The provinces of Finland were abolished on January 1, 2010....
.
Hardware is required to make the voice signal available to the computer equipment. Some of today's call recording software is sold as a turn-key solution with hardware.
Direct recording of mobile phone
Mobile phone
A mobile phone is a device which can make and receive telephone calls over a radio link whilst moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile network operator...
calls requires a hardware adapter connected to the handset. There are many other ways to record mobile phone calls. One approach is to route calls via a new PBX system linked to the recorder. However, such systems are typically expensive to purchase and change the way that calls are made, incurring running costs. Another approach links directly into existing recording systems from a PDA phone. Both of these approaches allow recordings to be timestamp
Timestamp
A timestamp is a sequence of characters, denoting the date or time at which a certain event occurred. A timestamp is the time at which an event is recorded by a computer, not the time of the event itself...
ed, often required for legal reasons. Recording directly onto mobile devices does not provide a legally valid recording.
Call recording software list
| Program | Owner | Operating systems | License | VoIP/Analog/Digital | Other capabilities | Latest release |
|---|---|---|---|---|---|---|
| Voxida | accuratealways.com | Windows | Closed | VoIP/Analog/Digital/SIP Trunk/Passive VoIP/IP/PRI/T1 | The Voxida call recording software that records calls, live monitors conversations and runs reports on the recorded call data. Voxida supports all major digital/TDM, VoIP and trunkside technologies as well as recording associated video for synchronous playback with the call audio and real-time streaming. Compatible with Cisco, Avaya, NEC, Nortel, Ericsson, Inter-Tel, Siemens and other proprietary PBX systems. Voxida does native digital recording so no adaptors or additional telecom interfaces are required. | v5.8 |
| Cacti | appliedcorp.com | Windows | Closed | VoIP/Analog/Digital/SIP Trunk/Active VoIP/IP/PRI/T1 | Call Recording software that covers all aspects of Call Recording. Works across virtually any telephony platform. Support for TDM, VoIP and Trunk Side Recording. Options include Screen Capture, Quality Monitoring and Speech Analytics and Post Call Surveys. | v2.46 |
| Oreka TR | OrecX, LLC | Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... , Windows |
Open Open source The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology... |
VoIP/Analog/Digital/PRI/T1/SIP | Oreka TR is commercial open source call center grade recording software that can scale from 5 - 5,000 users. Add on modules include Oreka LM (Live Monitoring), Oreka QM (Quality Management), Oreka SC (Screen Capture).. | v1.3 |
| SoundRecall | SoundNotes Technology Inc. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/SIP Trunk/Active VOIP/IP/ISDN/PRI | Record TDM, VOIP & Blended environments. Hosted recording; Remote Monitoring; Screen capture; Agent Quality Monitoring; Customer Surveys . Compatible with Nortel, Toshiba, Mitel, Cisco and Avaya. | v4.0.1 |
| VoIPmonitor | voipmonitor.org | Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... , POSIX UNIX |
Open | VoIP | VoIPmonitor is open source live network packet sniffer and call recorder for linux or posix unix which analyzes SIP and RTP protocol. It can run as daemon or analyzes already captured pcap files. Free VoIPmonitor can decode only G.711 codec. Commercial version can decode from G.729/G.723/GSM/Speex/iLBC. One of unique feature of VoIPmonitor is decoding phone calls which are changing codecs during call. Synchronisation is achieved with jitterbuffer simulator so every single file is properly synchronised. | v2.0 |
| ContextRecorder | Callfinity | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... , Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
Closed | VoIP/Analog/Digital/SIP Trunk/Active VoIP/IP/PRI/T1 | Contact center/call center recording. Available on-premise and hosted; active call-through recording or passive tap. Options for screen recording, keystroke logging, screen pop, evaluation forms designer, and quality reporting. Compatible with most PBXs including Cisco, Avaya/Nortel, Mitel, and all trunks. | v5.1 |
| CXM | Co-nexus, Inc | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/PRI/T1/SIP | CXM (Customer Experience Management) Recording and Quality Monitoring software is an enterprise solution designed to assist contact centers increase customer satisfaction and reduce liability. CXM offers; recording, screen capture, PCI Compliance, performance evaluation, agent coachng and post call satisfaction surveys. CXM is compatible with most PBX's including Avaya, Cisco, Nortel, Inter-tel, Mitel and NEC. | V4.6 |
| DGVox Voice Logger (Voxspectrum Pvt Ltd) | Voxspectrum (P) Ltd. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/IP/ISDN | record TDM, VOIP & Blended environments,Screen capture,Free seating,Agent Quality Monitoring,Certified by Cisco and Avaya | v7.1 |
| Xtend Voice Logger (Xtend Technologies) | Xtend Technologies (P) Ltd. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/IP/ISDN | record TDM, VOIP & Blended environments | v3.0 |
| Alliance Arcane (Logger) | Alliance Infotech (P) Ltd. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... , Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
Closed | VoIP/Analog/Digital/IP/RF | record TDM, VOIP & Blended environments | v3.0 |
| CARIN Unified Recording Solution | TC&C | Microsoft Windows Server | Closed | VoIP | Award-winning recording solution for unified communications of all media. First Cisco Telepresence recorder in the world. See Cisco Telepresence Cisco Telepresence Cisco TelePresence, first introduced in October 2006, is a product developed by Cisco Systems which provides high-definition 1080p video, spatial audio, and a setup designed to link two physically separated rooms so they resemble a single conference room even though the two rooms may be on opposite... article. |
v4.1 |
| Majuda Voice | Majuda Corporation | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... , Mac Macintosh The Macintosh , or Mac, is a series of several lines of personal computers designed, developed, and marketed by Apple Inc. The first Macintosh was introduced by Apple's then-chairman Steve Jobs on January 24, 1984; it was the first commercially successful personal computer to feature a mouse and a... |
Closed | VoIP/Analog/Digital | record TDM, VOIP & Blended environments. | v7.0 |
| cc: Discover | CallCopy | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital | Call Recording, Screen Capture, Speech Analytics, Desktop Analytics, Agent Coaching, Customer Surveys, Quality Management and Workforce Management | v4.4 |
| Encore | dvsAnalytics, Inc. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/SIP Trunks/T1/PRI | Screen Recording, Quality Management, Agent Evaluations, Full and Selective Encryption, Reporting & Analytics | v2.2.9 |
| XTR | XTR Digital | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | Analog/Digital | Caller ID, FTP/Lan/Email storage, voice activated recording, continuous recording. | v3.00 |
| Trivium SonicView | TriVium Systems | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... , |
Closed | VoIP/Analog/Digital | station side voice recording solutions from a single user/voice port to hundreds of ports with centralized server based solutions. Supporting IP, digital and analog mixed systems | v3.30 |
| TRx | NCH Software NCH Software NCH Software is a software development company founded in 1993 in Canberra, Australia. The Denver office was started in April 2008 due to the large U.S. customer base... |
Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... , Mac Macintosh The Macintosh , or Mac, is a series of several lines of personal computers designed, developed, and marketed by Apple Inc. The first Macintosh was introduced by Apple's then-chairman Steve Jobs on January 24, 1984; it was the first commercially successful personal computer to feature a mouse and a... |
Closed | Analog/Digital | 1 Line Recorder. | v4.30 |
| VPI CAPTURE PRO | VPI (Voice Print International) | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital | Analytics-enhanced, Web-based call recording and quality monitoring software for VoIP, TDM and hybrid environments with single or multiple locations, branch offices and home agents. | v5.0 |
| CallRex Call Recording | Telrex | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP | Call recording for IP-based telephony environments. Full-time, on-demand, or triggered recording options available. Quality management & liability recording. | v3.9 |
| VRS | NCH Software NCH Software NCH Software is a software development company founded in 1993 in Canberra, Australia. The Denver office was started in April 2008 due to the large U.S. customer base... |
Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | Analog/Digital | Multi-Channel Audio, voice activated, hardware activated or continuous recording modes. | v5.37 |
| Record | Oak Systems International | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | Analog/Digital/SIP/VoIP | Voice recording for quality monitoring and compliance. Expandable from 4 trunks/extensions to enterprise-size environments. Recordings are encrypted as standard. | v5 |
| Open Unified Recording | Unified Recording | Linux Linux Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds... |
Open Open source The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology... |
VoIP | Call recording for IP-based telephony environments using packet capture engine. Commercial version of the product (Unified Recording) includes encryption, Screen Capture, Analog/Digital/Asterisk. | v1.0 |
| CyberTech Pro & Myracle | CyberTech International | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/SIP (TRUNK)/Active VOIP | This multi-media product delivers voice recordings of traditional or VoIP telephony, together with data and desktop screens for applications including verification and compliance, dispute resolution, resilience options, training and quality monitoring. | v6.0 |
| VoxRecord | Voxsmart Ltd. | BlackBerry BlackBerry BlackBerry is a line of mobile email and smartphone devices developed and designed by Canadian company Research In Motion since 1999.BlackBerry devices are smartphones, designed to function as personal digital assistants, portable media players, internet browsers, gaming devices, and much more... |
Closed | [Mobile call recording software for call recorders] VoIP/Analog/Digital/SIP (TRUNK)/Active VOIP | This is a software product that ties mobile devices into any call recorder. VoxRecord generates the same call recording metatags for mobiles as are already created for landlines. These are displayed on the call recorder's interfaces for verification and compliance. | v10.7.1.x |
| CallRecorder | Trillium Technology Pty. Ltd. | Windows | Closed | VoIP/Analog/Digital | Automatic, Manual and Voice activated recording with optional announcement and beep feature. Automatic recording uses hardware detection features from Trillium Recording Adaptors. | v5.10 |
| Sense | Retell Ltd. | Windows | Closed | VoIP/Analog/Digital | Retell's own ISDN30, ISDN2, Analogue and VoIP Interface cards. Call Recording software of up to 1000 channels. Call Recording and Call Management enabling platform geared for integration, offering: recorder back-end, Open Architecture, APIs, SDK. 100% successful call matching. | v2.5.1 |
| Verba Recording System | Verba Technologies | Microsoft Windows Server | Closed | VoIP | Unified call recording solution for voice, video and telepresence. More information can be found in the Verba Technologies article. | 2010 |
| SmartRecord | CTI Group (Holdings) Inc. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/SIP (TRUNK)/Active VOIP | This multi-tenant, predominantly hosted recording product provides recording capabilities to the majority of hosted PBX operators worldwide. One of the first recording products to integrate in a carrier grade IMS environment, the product not only delivers hosted recording capabilities, but also multi-tenant speech analytics, call evaluation, and screen recording facilities. | v4.0 |
| Oreka GPL | Oreka.org | agnostic | Open Open source The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology... |
VoIP | Oreka is a modular and cross-platform system for recording and retrieval of audio streams. The project currently supports VoIP and sound device based capture. Recordings metadata can be stored in any mainstream database. Retrieval of captured sessions is web based | v1.2 |
| VSLogger | Versadial Solutions | Windows | Closed | VoIP/Analog/Digital/SIP (TRUNK)/Active VOIP | VS Logger call recording software allows you to record unlimited analog, digital, T1/E1, ISDN or VoIP lines. Access your recordings from any PC on your network, over the Internet, in a web browser, wirelessly via PDA, or over the phone. | v4.0 |
| SmartRecord | CTI Group (Holdings) Inc. | Windows Microsoft Windows Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal... |
Closed | VoIP/Analog/Digital/SIP (TRUNK)/Active VOIP | This multi-tenant, predominantly hosted recording product provides recording capabilities to the majority of hosted PBX operators worldwide. One of the first recording products to integrate in a carrier grade IMS environment, the product not only delivers hosted recording capabilities, but also multi-tenant speech analytics, call evaluation, and screen recording facilities. | v4.0 |
| Call Trunk | Call Trunk Holdings Ltd | Web Browser Web browser A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content... , iOS, Android, BlackBerry BlackBerry BlackBerry is a line of mobile email and smartphone devices developed and designed by Canadian company Research In Motion since 1999.BlackBerry devices are smartphones, designed to function as personal digital assistants, portable media players, internet browsers, gaming devices, and much more... |
Closed | VoIP/Analog/Digital | Call Trunk's applications are interfaces to a cloud Cloud computing Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility over a network .... -based service that records conversations between any two telephones, stores the recordings, and makes them accessible via a web portal. |
Different for each device |
| MiaRec | MiaRec, LLC | Windows | Closed Closed Closed may refer to:Math* Closure * Closed manifold* Closed orbits* Closed set* Closed differential form* Closed map, a function that is closed.Other* Cloister, a closed walkway* Closed-circuit television... |
VoIP | MiaRec is an enterprise-level solution for recording calls inside IP-based telephony network. MiaRec is based on the innovative packet sniffing technology that allows it to be considerably less expensive than analog-based recording systems. | v3.1 |
See also
- Call-recording hardwareCall-recording hardware- History :Law enforcement professionals began using hardware to record telephone calls in the 1890s. This required physical access to the lines over which calls were carried....
- Call-recording servicesCall-recording services- Hardware :Because hardware recording devices are cumbersome and expensive, they have been primarily used by law enforcement agencies. For this reason, hardware-based call recording is frequently conflated with telephone tapping.- Software :...
- Telephone recording lawsTelephone recording lawsTelephone recording laws are laws that govern the civilian recording of telephone conversations by the participants ....
- Telephone tappingTelephone tappingTelephone tapping is the monitoring of telephone and Internet conversations by a third party, often by covert means. The wire tap received its name because, historically, the monitoring connection was an actual electrical tap on the telephone line...
- VoIP RecordingVoIP recordingVoice over Internet Protocol recording is a subset of telephone recording or voice logging, first used by call centers and now being used by all types of businesses...
- TAPITelephony Application Programming InterfaceThe Telephony Application Programming Interface is a Microsoft Windows API, which provides computer telephony integration and enables PCs running Microsoft Windows to use telephone services. Different versions of TAPI are available on different versions of Windows...