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Relevant bibliographies by topics / Voice over Internet Protocol (VoIP) telephony

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Academic literature on the topic 'Voice over Internet Protocol (VoIP) telephony'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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Journal articles on the topic "Voice over Internet Protocol (VoIP) telephony"

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Prijono, Wahyu Adi. "PENGARUH PENGGUNAAN CODEC STANDART ITU G.729 TERHADAP SISTEM KOMUNIKASI VOIP." SISTEM Jurnal Ilmu Ilmu Teknik 17, no. 1 (March 5, 2021): 11–22. http://dx.doi.org/10.37303/sistem.v17i1.193.

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Voice over Internet Protocol (VoIP) is a technology that is capable of passing voice traffic, in the form of packets through the network Internet Protocol (IP). IP network itself is a data communications network based packet-switch. The voice signal before experiencing bundled voice coding or format conversion of sound into digital form that can be passed over an IP network. Telephony, Internet telephony, or termed VoIP (Voice Over Internet Protocol.This communication system use VoIP (Voice over Internet Protocol), ie voice calls over data services (internet). This communication was developed using Android-based devices. Based on characteristics, android devices are open source, so users do not need to have a license to be able to have android-based devices. In addition, the android device that must be connected to a SIP (Session Iniation Protocol) is a data service that can be done with a paid subscription of the user of the operator using a conventional pulse. Telecommunications designed will use a hybrid system, the merger between VoIP communications with data communications GSM network. With basic calculations where Coding standards G 729, is a standard that can be used for voice communication system through data networks with rate of 8 Kbps. The implementation of the G729 codec is effect on communication systems VOIP.

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Pasarelski, Rosen, and Verginya Todorova. "Analysis of protocols and techniques for transmission of voice over internet protocol." Yearbook Telecommunications 6 (September 29, 2019): 105–13. http://dx.doi.org/10.33919/ytelecomm.19.6.11.

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The purpose of the article is to present the process of the evolution of telecommunication networks across the years and are developing at a very rapid pace, with a tendency towards convergence of services. Voice over IP is the preferred method for more and more telecommunications operators, replacing standard telephony and networking. As a result, it can be noted that VoIP technology allows much more information to be transmitted over the network to serve and improve communication needs than traditional telephony. The authors' contribution is the analysis of voice over IP protocols, which clarifies the concepts and rules in this type of communication and presents the functionalities and components of these communications.

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Shih, Ying-Wei, Ya-Ling Wu, Yi-Shun Wang, and Chiung-Liang Chen. "Investigating the post-adoption stage of Voice over Internet Protocol (VoIP) telephony diffusion." Information Technology & People 30, no. 4 (November 6, 2017): 753–84. http://dx.doi.org/10.1108/itp-02-2016-0032.

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Purpose The purpose of this paper is to investigate the post-adoption stage of Voice over Internet Protocol (VoIP) telephony diffusion, examining usage behavior based on Shih and Venkatesh’s use-diffusion (UD) model. Design/methodology/approach The research model incorporates technology sophistication, complementary technologies, personal innovativeness, self-efficacy, trust propensity, media exposure, subjective norms, and word-of-mouth (WOM) referrals as UD determinants; rate of use and variety of use as usage variables; intense use, specialized use, nonspecialized use, and limited use as UD patterns; and satisfaction and intention to use future-related technologies as UD outcomes. Data used to test the research model were collected using a web-based online questionnaire form; 360 valid responses were obtained. Partial least squares, multinomial logistic regression, and analysis of variance were used to analyze data. Findings The results reveal that variety of use, self-efficacy, propensity to trust, media exposure, subjective norms, and WOM referrals increase rate of use, while complementary technologies, personal innovativeness, self-efficacy, media exposure, and subjective norms widen variety of use; variety of use is essential in predicting UD outcomes; when choosing limited use as the reference category, more than half of the UD determinants are capable of predicting UD patterns; and generally, intense users are more satisfied with VoIP telephony, while limited users have less intention to use future-related technologies. Originality/value The present study focuses on the post-adoption stage, thereby extending the frontiers of research on the diffusion of VoIP telephony. Academics can obtain some evidence of the explanatory power of the UD model in the context of VoIP telephony use, and practitioners can obtain fresh insights into the dynamics of VoIP telephony usage behavior.

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Yulianto, Budi. "Analisis Korelasi Faktor Perilaku Konsumen terhadap Keputusan Penggunaan Teknologi Komunikasi Voip." ComTech: Computer, Mathematics and Engineering Applications 5, no. 1 (June 30, 2014): 236. http://dx.doi.org/10.21512/comtech.v5i1.2619.

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The advancement of communication technology that is combined with computer and the Internet brings Internet Telephony or VoIP (Voice over Internet Protocol). Through VoIP technology, the cost of telecommunications in particular for international direct dialing (IDD) can be reduced. This research analyzes the growth rate of VoIP users, the correlation of the consumer behavior towards using VoIP, and cost comparisons of using telecommunication services between VoIP and other operators. This research is using descriptive analysis method to describe researched object through sampling data collection for hypothesis testing. This research will lead to the conclusion that the use of VoIP for international area will be more advantageous than the use of other operators of GSM (Global System for Mobile), CDMA (Code Division Multiple Access), or the PSTN (Public Switched Telephone Network).

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J. N, Odii, Nwokoma F.O, Onwuama T.U, and Ejem A. "The Technologies of Voice over Internet Protocol (VoIP) Based Telephony System: A Review." International Journal of Computer Trends and Technology 49, no. 4 (July 25, 2017): 217–22. http://dx.doi.org/10.14445/22312803/ijctt-v49p135.

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Honni, Honni. "Rancang Bangun Perangkat Lunak Billing dan Implementasi Voice Over Internet Protocol." ComTech: Computer, Mathematics and Engineering Applications 4, no. 2 (December 1, 2013): 603. http://dx.doi.org/10.21512/comtech.v4i2.2483.

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The rapidly evolving communication system enables applications for telephone communication to be carried over the data network known as VoIP (voice over internet protocol). SIP (session initiation protocol) as the signaling protocol is text-based VoIP which can be implemented easily in comparison with other signalingprotocols. The purpose of this paper is designing and implementing VoIP billing up to the company to provide additional facilities for enterprise customers. The methods start with data collection, analysis, design, development, and implementation. The result achieved is a system of VoIP with SIP and Asterisk software which has functions of PBX to provide additional facilities such as VoIP which is a plus for the company and customers. After implemented, the VoIP system and billing features are found work well.

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Hoanca, Bogdan, and Richard Whitney. "Taking a Byte of Telephony Costs." Journal of Cases on Information Technology 12, no. 4 (October 2010): 18–34. http://dx.doi.org/10.4018/jcit.2010100102.

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In 2006, the University of Alaska Anchorage (UAA) upgraded the telephone system at its main campus in Anchorage from a traditional private branch exchange (PBX) architecture to a Voice over Internet Protocol (VoIP) system. This case describes the organizational decisions that led to the change; the scope and the process of upgrading; and the current status of the new VoIP system. The actual migration to VoIP was completed less than a year after the start of the project. The transition process went smoothly. User satisfaction with the performance of the VoIP system is very high. Based on extensive interviews with decision makers and the technical personnel involved, this case also describes financial considerations (including “creative” ways to stretch a limited budget), outsourcing considerations, training related issues, as well as lessons learned.

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Supendar, Hendra, Yopi Handrianto, and Santoso Setiawan. "Kualitas Pelayanan Dalam Voice Over Internet Protokol Berbasis Shorewall." PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic 7, no. 2 (September 23, 2019): 123–32. http://dx.doi.org/10.33558/piksel.v7i2.1815.

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Abstract Communication is very important and a success factor of the system at the company. Communication can be done using telephone media and internet media. PT. Interdev Prakarsa has several branches and communication between branches is still done using telephone media, and it is very costly for the company especially since the company is already using internet media in the network. The solution to this problem in this study was designing an internet-based technology as communication between branches, the technology is called Voice over Internet Protocol (VoIP) with an open source operating system and an open source firewall that was Shorewall. Result showed that after installation and testing, this firewall reliable enough to overcome the problem of attack problems from outside. The results of VoIP tightening on service quality found that the application of VoIP did not consume a lot of CPU Benchmarks, i.e. only 0.80 to 1.35 per cent. The bandwidth used is also very small between 86 to 86.8 kbps for incoming calls and 83.4 up to 84.3 kbps for outgoing calls. Communication built between VoIP peripherals has also been tested to run well because the value of delay, jitter and packet loss is included in the good category. Keywords: VoIP, Shorewall, Comunication Abstrak Komunikasi pada sebuah perusahaan sangatlah penting, dimana komunikasi menjadi alat ukur keberhasilan sistem di perusahaan tersebut. Komunikasi yang dilakukan dapat menggunakan media telepon dan media internet. PT. Interdev Prakarsa memiliki beberapa cabang dan komunikasi antar cabang masih dilakukan dengan menggunakan media telepon, dan itu sangatlah menghabiskan cost perusahaan apalagi perusahaan tersebut sudah menggunakan media internet dalam jaringan. Solusi dari permasalahan tersebut adalah dengan mendesain sebuah teknologi yang berbasis jaringan internet sebagai komunikasi antar cabang, teknologi tersebut bernama Voice over Internet Protocol (VoIP) dengan sebuah sistem operasi open source dan sebuah firewall open source yaitu Shorewall dimana setelah dilakukan penginstallan dan pengetesan, firewall ini cukup handal untuk mengatasi masalah masalah serangan dari luar. Hasil dari pengetasan VoIP terhadap kualitas pelayanan didapatkan bahwa penerapan VoIP tidak banyak menghabiskan Benchmark CPU yaitu hanya 0,80 sampai degan 1.35 persen per call. Untuk bandwidth yang di pakai juga sangatlah kecil berada di antara 86 sampai dengan 86.8 kbps untuk panggilan masuk dan 83.4 sampai dengan 84.3 kbps untuk panggilan keluar. Komunikasi yang dibangun antar peripheral VoIP pun teruji berjalan dengan baik karena nilai dari delay, jitter dan packet loss termasuk dalam katagori baik. Kata kunci: VoIP, Shorewall, Komunikasi

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Nouvatie, Alwalid, Martono Dwi Atmadja, and Waluyo Waluyo. "Implementasi Trunk Interkoneksi Multi Server menggunakan Singleboard Komputer." Jurnal Jartel: Jurnal Jaringan Telekomunikasi 11, no. 2 (June 28, 2021): 96–100. http://dx.doi.org/10.33795/jartel.v11i2.75.

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Voice over Internet Protocol (juga disebut VoIP, IP Telephony, Internet telephony atau Digital Phone) adalah teknologi yang memungkinkan percakapan suara jarak jauh melalui media internet. Data suara diubah menjadi kode digital dan dialirkan melalui jaringan yang mengirimkan paket-paket data, dan bukan lewat sirkuit analog telepon biasa. Dalam komunikasi VoIP, pemakai melakukan hubungan telepon melalui terminal yang berupa PC atau telepon biasa. Dengan bertelepon menggunakan VoIP, banyak keuntungan yang dapat diambil diantaranya adalah dari segi biaya jelas lebih murah dari tarif telepon tradisional, karena jaringan IP bersifat global. IP Phone dapat di tambah, dipindah dan di ubah. Hal ini karena VoIP dapat dipasang di sembarang ethernet dan IP address, tidak seperti telepon konvensional yang harus mempunyai port tersendiri di Sentral atau PBX (Private branch exchange). Dalam penelitian ini mengimplementasikan keterhubungan antar server menggunakan single board computer yang di install sistem operasi Elastix yang bertujuan untuk mengimplementasikan prefix untuk antar server dan menggunakan beberapa codec audio. Hasil penelitian telepon menggunakan prefix dan tanpa prefix sebanyak 6 client atau 3 pasng panggilan secara bersamaan nilai packet loss tertinggi pada codec speex dengan prefix sebesar 2,34%. Nilai bandwidth tertinggi yang digunakan adalah dengan prefix codec PCMU dengan rata-rata 82,3 Kbps dan tanpa prefix 79,3 Kbps. Kata kunci : Server, VoIP, IP Telphony, Internet telephony, Digital Phone, IP Address, PBX, Codec, Prefix.

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Khalifa, Othman O., Raihan Jannati Binti Roslin, and Sharif Shah Newaj Bhuiyan. "Improved voice quality with the combination of transport layer & audio codec for wireless devices." Bulletin of Electrical Engineering and Informatics 8, no. 2 (June 1, 2019): 665–73. http://dx.doi.org/10.11591/eei.v8i2.1490.

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Improving voice quality over wireless communication becomes a demanding feature for social media apps like facebook, whatsapp and other communication channels. Voice-over-internet protocol (VoIP) helps us to make quick telephone calls over the internet. It includes various mechanism which are signaling, controlling and transport layer. Over wireless links, packet loss and high transmission delay damage voice quality. Here VoIP quality will be measured by three main elements which are signaling protocol, audio codec and transport layer. To improve the overall voice quality, we need to combine these three elements properly to get the best score. Otherwise perceptual speech quality will not be the right tool to measure the voice quality. Here we will use Mean Opinion Score (MOS) for calculated jitter values and end to end delay. At the end, best combination of audio codec signaling protocol produced the quality speech.

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Dissertations / Theses on the topic "Voice over Internet Protocol (VoIP) telephony"

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Tasyumruk, Lutfullah. "Analysis of voice quality problems of Voice Over Internet Protocol (VoIP)." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FTasyumruk.pdf.

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Lewis, Rosemary. "Operational benefit of implementing VoIP in a tactical environment." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FLewis.pdf.

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Thesis (M.S. in Information Systems and Operations)--Naval Postgraduate School, June 2003.
Thesis advisor(s): Dan C. Boger, Rex Buddenberg. Includes bibliographical references (p. 61-62). Also available online.

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Patton, Mark B. "A case study of Internet Protocol Telephony implementation at United States Coast Guard headquarters." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Mar%5FPatton.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, March 2005.
Thesis Advisor(s): Dan C. Boger, R. Scott Coté. Includes bibliographical references (p. 134-138). Also available online.

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Svešnikova, Anastasija. "Internetinės telefonijos teisinis reglamentavimas Lietuvoje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20090204_113025-13014.

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Šio darbo tema - Internetinės telefonijos teisinis reglamentavimas Lietuvoje. Šiuolaikinis Internetinės telefonijos populiarumas ne tik sukelia vartotojų, bet ir reguliuotojų suinteresuotumą. Būtent ji pastaruoju metu kelia daugybę diskusijų tarptautiniuose bei nacionalinėse forumuose, kurių vienas pagrindinių aspektų – tinkamo Internetinės telefonijos reguliavimo sukūrimas. Pagrindinis baigiamojo magistrinio darbo tikslas – išnagrinėti Internetinės telefonijos reguliavimą tarptautiniu ir Lietuvos mastu, bei apžvelgti su juo susijusias problemas. Darbe nagrinėjama užsienio šalių praktika, remiantis kuria iškeliamos pagrindinės Lietuvos IP telefonijos teisinio reguliavimo gairės. Būtent: telefono numerių skyrimas, numerio perkeliamumas, skambučiai į pagalbos tarnybas, skambučiai kitais telefono numeriais, IP telefonijos skambučių saugumas, bei aprašomos su jų įgyvendinimu susijusios problemos.
The topic of the paper is Legal Reglamentation of VoIP Telephony in Lithuania. VoIP telephony’s nowadays spread and popularity scores an interest and debates not only between it’s consumers but also between legal regulators. VoIP is the main and rather often discussed topic of international and national forums, which aim to develop its proper regulation. The main aim of this paper is to internationally analyse VoIP’s legal regulation and to survey its associated problems. Foreign countries’ experience helps to formulate basic guidelines of Lithuanian VoIP legal regulation. Namely: numbering, numbers portability, calls to emergency services, calls to other telephone numbers, safety of VoIP calls and its associated problems.

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Lella, Tuneesh Kumar. "Privacy of encrypted Voice Over Internet Protocol." Thesis, Texas A&M University, 2008. http://hdl.handle.net/1969.1/86009.

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In this research, we present a investigative study on how timing-based traffic analysis attacks can be used for recovery of the speech from a Voice Over Internet Protocol (VOIP) conversation by taking advantage of the reduction or suppression of the generation of traffic whenever the sender detects a voice inactivity period. We use the simple Bayesian classifier and the complex HMM (Hidden Markov Models) classier to evaluate the performance of our attack. Then we describe the usage of acoustic features in our attack to improve the performance. We conclude by presenting a number of problems that need in-depth study in order to be effective in carrying out silence detection based attacks on VOIP systems.

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Dechjaroen, Chaiporn. "Performance evaluation of Voice over Internet Protocol." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Dec%5FDechjaroen.pdf.

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Wallace, David T. Vegter Henry M. "Exploitation of existing Voice over Internet Protocol Technology for Department of the Navy application /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FWallace.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, September 2002.
Thesis advisor(s):Dan Boger, Rex Buddenberg. Includes bibliographical references (p. 101-102). Also available online.

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Vaishnav, Chintan. "Voice over Internet Protocol (VoIP) : the dynamics of technology and regulation." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34533.

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Thesis (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2006.
Includes bibliographical references (p. 144-145).
"What Voice over Internet Protocol (VoIP) is going to do is start to weaken the foundation of the way we've done things for 100 years...Congress already should be discussing the next telecom bill," said Federal Communications Commission (FCC) Chairman Michael Powell in February 2004, before the United States Senate. The objective of this thesis is to study how VoIP challenges the incumbent US telecommunications act. The appearance of VoIP comes at a juncture when telecommunications system has already turned into a large-scale, complex system with multiple, competing infrastructures. VoIP, however, greatly augments the nested complexity by affording a technology that enables multiple architectures and business models for delivering the same voice (and often converged voice and data) service, while remaining agnostic to the underlying infrastructure. The VoIP-enabled architectures have very different capabilities and costs from one another. Many do not - or cannot - support social regulations such as emergency 911, wiretapping and disability access. Most exploit the economic arbitrage opportunities by evading access charges and universal service contributions.
(cont.) Added to this is the combination of reduced asset specificity due to VoIP's layered architecture and a global standard based ubiquitous IP technology that frees the service providers of the need to own the delivery infrastructure, and enables them to offer service from anywhere globally. Such a misalignment - between regulatory obligations and technical capabilities - has the potential to incubate large-scale systemic failures due to lack of coordination between the local optimization focused private markets and the highly compartmentalized public institutions. The case of Communications Assistance for the Law Enforcement Act (CALEA) - also known as the wiretapping act - is taken to study its implications on VoIP. A system dynamics model is used for the analysis. Four policy lessons emerge through the process of arriving at the model and the subsequent sensitivity analysis. First, considering peer-to-peer (P2P) VoIP a non-issue for CALEA is exactly what might make it an issue. Second, if P2P VoIP aspires to be a telephony substitute, it will invite the threat of social regulation. Third, arms race between CALEA-compliant and non-compliant technologies may raise the cost of CALEA compliance. Fourth, prohibiting use of certain encryption techniques may help the LEA to keep their ability to wiretap intact, but it also deprives customers of the privacy the prohibited schemes would have offered, and thereby helps the Internet-crime.
by Chintan Vaishnav.
S.M.

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Nugent, Geoffrey J. "Voice Over Internet Protocol (VOIP), Video Games, and the Adolescent's Perceived Experience." ScholarWorks, 2014. https://scholarworks.waldenu.edu/dissertations/155.

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Video games are an everyday experience for adolescents and have changed how adolescents interact with one another. Prior research has focused on positive and negative aspects of video game play in general, without distinguishing Voice Over Internet Protocol (VOIPing) as the mode of play. Grounded in entertainment theory, motivational theory, and psychological distress theory, this cross-sectional, correlational study examined the relationship between VOIPing and quality of life (Pediatric Quality of Life Inventory), Yee's motivation to play video games, and resilience (Child and Youth Resilience Measure). A series of linear regression and multivariate canonical correlation models analyzed self-report responses of 103 adolescents aged 13 to18. Results indicated that VOIPing was not statistically related to quality of life or resilience. However, VOIPing correlated positively with motivation to play video games, particularly with the subscales of socialization and relationships. Canonical analysis of motivation for gaming and quality of life indicated that adolescents with high scores on customization and escapism motivation for gaming subscales tended to also have high scores on each of the emotional, social, and school quality of life subscales. Canonical analysis of motivation for gaming and resilience indicated that adolescents with low scores on the escapism motivation for gaming subscale tended to also have high scores on the individual, relationships, and community resilience subscales. The positive aspects of VOIPing, particularly with increased motivation to play video games, can be effectively used in coaching adolescents in social skills and relationship building.

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Chita, Christian. "MAIDS for VoIP : a Mobile Agents-based Intrusion Detection System for Voice over Internet Protocol." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/5599.

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Compared to traditional (PSTN) voice networks, a Voice over Internet Protocol network is a convergence of a signaling network and a data network using Internet Protocol (IP). The use of shared media by VoIP systems opens the door to some uncertainty as to the source of a call. While in the traditional voice networks one has to tap into a specific circuit to eavesdrop, in an IP network any equipment connected to the target LAN can identify, store and playback the VoIP packets that traverse that LAN. Unlike traditional voice networks which have only “dumb” end nodes (i.e. simple telephone receivers), VoIP must, by its very nature, deploy intelligent end point devices such as computers andlor IP phones, which are connected to open public networks. An unprotected, unauthenticated IP network makes VoIP susceptible to hostile use, such as call hijacking, connection tear down, denial of service, or sending computer viruses over the network. In this thesis, we perform a series of attacks against a commercial VoIP application, and prove that they succeed with nothing more than a couple of identity tokens captured from the network traffic as prerequisites. We then leverage the mobile agent-based framework introduced by APHIDS to design an Intrusion Detection System implementing a gradual attack-response procedure, destined to inform and protect the End-Users of the Application Under Test when specific, internet telephony attacks do occur, and ultimately to block the capability of the attack perpetrator to induce further damage.

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Books on the topic "Voice over Internet Protocol (VoIP) telephony"

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New York (State). Legislature. Assembly. Committee on Corporations, Authorities, and Commissions. Notice of public hearing on internet telephone service, Voice Over Internet (VoIP). Albany, N.Y: C. Herbst, Office of the Official Reporter, 2004.

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Parker, Philip M. Voice over Internet Protocol (VoIP) services in Germany: A strategic reference, 2007. [San Diego, Calif.]: Icon Group International, 2007.

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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Voice over Internet Protocol (VoIP) and the future of 9-1-1 services: Hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, April 10, 2007. Washington: U.S. G.P.O., 2013.

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Law, United States Congress House Committee on the Judiciary Subcommittee on Commercial and Administrative. Regulatory aspects of Voice over Internet Protocol (VoIP): Hearing before the Subcommittee on Commercial and Administrative Law of the Committee on the Judiciary, House of Representatives, One Hundred Eighth Congress, second session, July 23, 2004. Washington: U.S. G.P.O., 2004.

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Voice over IPv6: Architectures for next generation VoIP networks. Boston: Newnes, 2006.

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Sudeept, Bhatnagar, ed. VOIP: Wireless, P2P and new enterprise voice over IP. Chichester, West Sussex, England: Wiley, 2008.

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Groom, Frank M. The basics of voice over internet protocol. Chicago: International Engineering Consortium, 2004.

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Gonçalves, Marcus. Voice over IP networks. New York: McGraw-Hill, 1999.

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Voice over IP networks. New York: McGraw-Hill, 1999.

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Beyond VoIP protocols: Understanding voice technology and networking techniques for IP telephony. Hoboken, NJ: John Wiley & Sons, 2004.

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Book chapters on the topic "Voice over Internet Protocol (VoIP) telephony"

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Ogunfunmi, Tokunbo, and Koji Seto. "Scalable and Multi-Rate Speech Coding for Voice-over-Internet Protocol (VoIP) Networks." In Speech and Audio Processing for Coding, Enhancement and Recognition, 41–74. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1456-2_3.

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Ransome, James F., and John W. Rittinghouse. "Telephony 101." In Voice over Internet Protocol (VoIP) Security, 47–74. Elsevier, 2005. http://dx.doi.org/10.1016/b978-155558332-3/50006-6.

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Bose, Indranil, and Fong Man Chun. "Voice Over Internet Protocol." In Encyclopedia of Internet Technologies and Applications, 663–69. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59140-993-9.ch093.

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One of the hottest technologies these days is voice communication over packet-switched data networks. This is known as voice over Internet protocol (VoIP). Hardy (2003) defines VoIP as “the interactive voice exchange capability carried over packet switched transport employing the Internet protocol.” With VoIP, voice signal from the sender is digitized into packets that are transmitted to the receiver through a network,which often includes the Internet. As the Internet is a free resource, the communication cost of VoIP is much lower than that of traditional telephone systems. This is a major advantage of VoIP. VoIP system also increases the efficiency and service quality of businesses. As a result of VoIP, many advanced applications can be built and these include unified messaging, video conferencing, and ring list. But VoIP is not without its limitations. Its main drawback is low reliability. It also suffers from uncertain quality of voice transmission. In addition, it cannot guarantee security because it uses public networks. Although the idea of VoIP was known from the 1970s, it did not become commercially viable until 1995, when Vocaltec became the first company to produce the first commercially available VoIP product (Varshney et al., 2002).

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Stevens, Dwayne, and David T. Green. "A Strategy for Enterprise VoIP Security." In Handbook of Research on Information Security and Assurance, 458–66. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-855-0.ch041.

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Voice over Internet Protocol (VoIP) networks signal an evolution in telecommunications that is accelerating the convergence of the Internet and the public switched telephone network (PSTN). Offering decreased costs and other benefits, VoIP is poised to transform telecommunications and the organizations that use them. However, some consider VoIP a security nightmare, combining the worst vulnerabilities of IP networks and voice networks. DOS attacks, crash attacks, packet spoofing, buffer overflow attacks, spam over Internet telephony (SPIT), and word injection all pose threats to commercial enterprise networks and the mission critical operations that they support.

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Stevens, Dwayne, and David T. Green. "A Strategy for Enterprise VoIP Security." In Networking and Telecommunications, 1427–36. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-986-1.ch093.

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Voice over Internet Protocol (VoIP) networks signal an evolution in telecommunications that is accelerating the convergence of the Internet and the public switched telephone network (PSTN). Offering decreased costs and other benefits, VoIP is poised to transform telecommunications and the organizations that use them. However, some consider VoIP a security nightmare, combining the worst vulnerabilities of IP networks and voice networks. DOS attacks, crash attacks, packet spoofing, buffer overflow attacks, spam over Internet telephony (SPIT), and word injection all pose threats to commercial enterprise networks and the mission critical operations that they support.

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Hassan, Mahbub, and Sanjay Jha. "Voiceover IP." In Enterprise Networking, 123–43. IGI Global, 2002. http://dx.doi.org/10.4018/978-1-930708-17-4.ch008.

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As the name suggests, voice over Internet Protocol (VoIP) refers to the technology that allows transmission of voice over IP networks. Using VoIP, we can make telephone calls over the Internet or any IP-based corporate networks. With VoIP in place, the Internet does not remain a data-only network; it becomes a telephone network as well. So, what is the motivation for VoIP? There are several appealing reasons why we want this technology. The most compelling reason behind the emergence of this technology is the enormous cost savings through integration of both voice and data, two large revenue-making media for telecommunication companies, over the same communication infrastructure. The other major motivation for VoIP is the widespread adoption of IP platform. Today IP is a well-entrenched technology which is deployed in servers, routers, desktop PCs, laptops, and in many hand-held mobile devices, such as palmtops and PDAs. If voice signals could be transported over IP, then voice could be delivered to all these devices, making these devices much more useful than they already are. This chapter discusses several aspects of VoIP: (1) Advanced applications powered by VoIP, (2) the technical challenges and solutions for making VoIP a reality, (3) various VoIP configurations, and (4) the protocols and standards for VoIP. We conclude the chapter by discussing the future of VoIP.

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Wilsdon, Thomas, and Jill Slay. "Voice Over IP for Rural Telecommunication Provision." In Encyclopedia of Developing Regional Communities with Information and Communication Technology, 723–28. IGI Global, 2005. http://dx.doi.org/10.4018/978-1-59140-575-7.ch129.

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With the continual convergence of analogue technologies with those either simulated or implemented in digital based equivalents, future benefits usually involve better reliability and lower costs. As current technical limitations are removed, the literature does not show any large scale assessment of the legal and security implications of the removal of cables in this digital world or the effect of a move toward wireless transmission in this context. Neither Voice Over Internet Protocol (VoIP) nor IEEE 802.11b is new technology, but the combination of these services to provide a primary telephone network for small regional centres is an innovative solution to rural telecommunication problems.

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Wilsdon, Thomas, and Jill Slay. "Voice Over IP for Rural Telecommunication Provision." In Global Information Technologies, 1160–66. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-939-7.ch086.

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With the continual convergence of analogue technologies with those either simulated or implemented in digital based equivalents, future benefits usually involve better reliability and lower costs. As current technical limitations are removed, the literature does not show any large scale assessment of the legal and security implications of the removal of cables in this digital world or the effect of a move toward wireless transmission in this context. Neither Voice Over Internet Protocol (VoIP) nor IEEE 802.11b is new technology, but the combination of these services to provide a primary telephone network for small regional centres is an innovative solution to rural telecommunication problems.

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Wilsdon, Thomas, and Jill Slay. "Voice Over IP for Rural Telecommunication Provision." In Information Communication Technologies, 1530–37. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-949-6.ch105.

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With the continual convergence of analogue technologies with those either simulated or implemented in digital based equivalents, future benefits usually involve better reliability and lower costs. As current technical limitations are removed, the literature does not show any large scale assessment of the legal and security implications of the removal of cables in this digital world or the effect of a move toward wireless transmission in this context. Neither Voice Over Internet Protocol (VoIP) nor IEEE 802.11b is new technology, but the combination of these services to provide a primary telephone network for small regional centres is an innovative solution to rural telecommunication problems.

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Bose, Indranil. "Implementation of Quality of Service in VoIP." In Encyclopedia of Multimedia Technology and Networking, Second Edition, 655–60. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch088.

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Today, Internet technologies have pervaded every corner of our society. More and more people are benefiting from the Internet in one way or the other. One of the current Internet technologies that may benefit us greatly is voice over Internet protocol (VoIP). According to Hardy (2003, p. 2), VoIP is “the interactive voice exchange capability carried over packet-switched transport employing the Internet protocol.” With VoIP technology, one can call anyone in this world at a lower cost, compared to traditional telephone systems. However, VoIP technology has one significant drawback. It has a low degree of reliability. From experimental results it is known that VoIP can achieve only 98% reliability. The service down time per year for VoIP is almost 20 working days (175 hours). For most companies and government organizations, such a degree of reliability is unacceptable since the traditional telephone system can achieve 99.999% reliability with a service down time of only five minutes per year (Kos, Klepec, & Tomaxic, 2005). As a result, quality of service (QoS) is an important concept for VoIP. Using QoS, VoIP may be able to overcome its limitation in reliability. QoS is often defined as the capability to provide resource assurance and service differentiation in a network. The definition includes two important terms—resource assurance and service differentiation. Resource assurance provides a guarantee about the amount of network resources requested by the user. On the other hand, service differentiation provides higher priority of getting network resources to those applications that have critical latency constraints. Given the importance of low latency for voice communication, it is not difficult to predict that QoS will assume greater importance in the VoIP industry as this technology gains popularity in the mass market. It is reported that VoIP is aggressively growing, and this growth is expected to continue in the coming years.

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Conference papers on the topic "Voice over Internet Protocol (VoIP) telephony"

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Abualhaj, Mosleh M., Mayy M. Al-Tahrawi, and Sumaya N. Al-Khatib. "A New Method to Improve Voice over IP (VoIP) Bandwidth Utilization over Internet Telephony Transport Protocol (ITTP)." In ICSIE '19: 2019 8th International Conference on Software and Information Engineering. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3328833.3328885.

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M. Abualhaj, Mosleh, Sumaya N. Al-khatib, and Mahmoud Baklizi. "Multiplexing VOIP Packets Over Internet Telephony Transport Protocol (ITTP)." In 7th International Conference on Natural Language Processing. Academy & Industry Research Collaboration Center (AIRCC), 2018. http://dx.doi.org/10.5121/csit.2018.80207.

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Alam, Md Zaidul, Saugata Bose, Md Mhafuzur Rahman, and Mohammad Abdullah Al-Mumin. "Small Office PBX Using Voice Over Internet Protocol (VOIP)." In The 9th International Conference on Advanced Communication Technology. IEEE, 2007. http://dx.doi.org/10.1109/icact.2007.358679.

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Bhuvaneshwari, S., and P. Arul. "Secure voice over internet protocol(VoIP) network with biometric key." In 2017 IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI). IEEE, 2017. http://dx.doi.org/10.1109/icpcsi.2017.8391948.

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Chacon, Sergio, Driss Benhaddou, and Deniz Gurkan. "Secure voice over Internet Protocol (voIP) using virtual private networks (VPN) and Internet Protocol Security (IPSec)." In 2006 IEEE Region 5 Conference. IEEE, 2006. http://dx.doi.org/10.1109/tpsd.2006.5507428.

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Sharma, Shivani, S. K. Jain, and R. M. Sharma. "Spectrographic study of speech samples recorded through Voice Over Internet Protocol (VOIP)." In 2013 International Conference Oriental COCOSDA held jointly with 2013 Conference on Asian Spoken Language Research and Evaluation (O-COCOSDA/CASLRE). IEEE, 2013. http://dx.doi.org/10.1109/icsda.2013.6709906.

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Bandung, Yoanes, Carmadi Machbub, Armein Z. R. Langi, and Suhono H. Supangkat. "Optimizing Voice over Internet Protocol (VoIP) networks based-on Extended E-model." In 2008 IEEE Conference on Cybernetics and Intelligent Systems (CIS). IEEE, 2008. http://dx.doi.org/10.1109/iccis.2008.4670898.

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Talha, Sulafa Khaled, and Bazara I. A. Barry. "Evaluating the impact of AES encryption algorithm on Voice over Internet Protocol (VoIP) systems." In 2013 International Conference on Computing, Electrical and Electronics Engineering (ICCEEE). IEEE, 2013. http://dx.doi.org/10.1109/icceee.2013.6634023.

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Pomsathit, A. "Performance analysis of intrusion prevention system on cyber security for voice over Internet protocol (VoIP)." In 11th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2015). Institution of Engineering and Technology, 2015. http://dx.doi.org/10.1049/cp.2015.0752.

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Alsoubaie, Fayez. "Using the Hierarchical Decision Model (HDM) to Select a Sustainable Voice over Internet Protocol (VOIP) Provider." In 2019 Portland International Conference on Management of Engineering and Technology (PICMET). IEEE, 2019. http://dx.doi.org/10.23919/picmet.2019.8893927.

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Reports on the topic "Voice over Internet Protocol (VoIP) telephony"

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Thompson, Gardner W. An Entropy-based Approach to Detecting Anomalies in Voice over Internet Protocol (VoIP) Traffic. Fort Belvoir, VA: Defense Technical Information Center, March 2010. http://dx.doi.org/10.21236/ada532059.

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