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Journal articles on the topic 'VoIP-networks'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Daramola, Oladunni Abosede. "QUALITY OF SERVICE ISSUES IN WIRELESS VOICE OVER INTERNET PROTOCOL." International Journal of Advanced Research in Computer Science and Software Engineering 7, no. 10 (2017): 57. http://dx.doi.org/10.23956/ijarcsse.v7i10.386.

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Voice over Internet Protocol (VoIP) is a significant application of the converged network principle where the voice traffic is routed over Internet Protocol shared traffic networks. VoIP traffic was modelled over wireless network and a simulation of the traffic was transmitted over the network. E-model technique was used to analyze the traffic data and also to rate VoIP QoS parameters. The result achieved was mapped to the Mean Opinion Scale to determine the Quality of Service of VoIP over wireless networks. The results shows that QoS in the VoIP communications is significantly impacted by the

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Wisam Dawood Abdullah. "EVALUATION OF VOIP TRAFFICS OVER TIKRIT UNIVERSITY NETWORKS." Tikrit Journal of Pure Science 21, no. 1 (2023): 140–46. http://dx.doi.org/10.25130/tjps.v21i1.964.

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In recent years, VoIP is a rapidly evolving technology that could possibly revolutionize the telecommunication industry. When implemented on wireless data networks, VoIP could prove to be instrumental in the convergence of existing fixed and cellular telephony networks with the fast growing wired and wireless data networks. Whereas, the growth of the VoIP applications with additional mobile devices in the institution of higher education and increasing number of users led to slow VoIP services. In addition, the throughput and latency (or delay, jitter, and jabber) are two of the most important

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Kolhar, Manjur. "Zeroize: A New Method to Improve the Utilization of 5G Networks When Running VoIP over IPv6." Applied System Innovation 4, no. 4 (2021): 72. http://dx.doi.org/10.3390/asi4040072.

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5G technology is spreading extremely quickly. Many services, including Voice Over Internet Protocol (VoIP), have utilized the features of 5G technology to improve their performance. VoIP service is gradually ruling the telecommunication sector due to its various advantages (e.g., free calls). However, VoIP service wastes a substantial share of the VoIP 5G network’s bandwidth due to its lengthy packet header. For instance, the share of the packet header from bandwidth and channel time reaches 85.7% of VoIP 5G networks when using the IPv6 protocol. VoIP designers are exerting considerable effort

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Nisar, Kashif. "Voice Priority Queue Scheduling System Models for VoIP over WLANs." International Journal of Information Communication Technologies and Human Development 5, no. 1 (2013): 36–59. http://dx.doi.org/10.4018/jicthd.2013010103.

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The Voice over Internet Protocol (VoIP) is a delay sensitive traffic due to real-time applications on networks. The assessment of voice flow quality in the VoIP is an essential requirement for technical and commercial motivation. The packets of VoIP streaming may experience drops because of the competition among the different kinds of traffic flow over the network. A VoIP application is also sensitive to delay and requires the voice packets to arrive on time from the sender to the receiver side without any delay over WLAN. The scheduling system model for VoIP traffic is an unresolved problem.

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Abualhaj, Mosleh M., and Sumaya N. Al-Khatib. "A New Method to Boost VoIP Performance Over IPv6 Networks." Transport and Telecommunication Journal 23, no. 1 (2022): 62–72. http://dx.doi.org/10.2478/ttj-2022-0006.

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Abstract The demands on virtual communication have increased noticeably during the COVID-19 pandemic lockdown. As an essential part of virtual communication, VoIP should be promoted to achieve the desired level of performance. One critical area investigated in VoIP is the bandwidth utilization (BWU) of the VoIP over IPv6 networks. Enhancing BWU will impact call capacity and quality; it increases call capacity and boosts call quality. Unfortunately, a considerable amount of bandwidth is wasted when running VoIP over IPv6 networks. This is due to the large size of the IPv6 header and the small s

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Sarkar, Nurul I., and Kashif Nisar. "Performance of VoIP in Wired-Cum-Wireless Ethernet Network." International Journal of Interdisciplinary Telecommunications and Networking 4, no. 4 (2012): 1–25. http://dx.doi.org/10.4018/jitn.2012100101.

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The Voice over Internet Protocol (VoIP) is a rapidly growing technology that enables transport of voice over data networks such as Ethernet Local Area Networks (LANs). This growth is due to the integration of voice and data traffic over the existing network infrastructure, low cost, and improved network management offered by the technology. This paper reports on the performance of VoIP traffic characteristics in a wired-cum-wireless Ethernet LAN. The effect of increasing the number of VoIP wireless clients, different voice codec schemes, and packet arrival distributions on system performance i

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Materna, Bogdan. "Proactive Security for VoIP Networks." Information Systems Security 15, no. 2 (2006): 16–21. http://dx.doi.org/10.1201/1086.1065898x/46051.15.2.20060501/93405.4.

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Atmadja, Martono Dwi. "Single Board Computer Applications as Multi-Server VoIP." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (2021): 1023–28. http://dx.doi.org/10.22214/ijraset.2021.36512.

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Telecommunication technology is developing along with information technology and several innovations in several audio and data transmission and reception techniques. Innovation and communication technology are hoped to be able to create efficiencies in regards to time, equipment, and cost. The Public Switched Telephone Network (PSTN) telephone technology has experienced integration towards communication using Internet Protocol (IP) networks, better known as Voice over Internet Protocol (VoIP). VoIP Technology transmits conversations digitally through IP-based networks, such as internet network

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Lipatnikov, Valerij, Aleksandr Shevchenko, Vladislav Kosolapov, and Daniil Sokol. "Method for ensuring information security of a VOIP telephony network with a forecast of an intruder's intrusion strategy." Information and Control Systems, no. 1 (March 2, 2022): 54–67. http://dx.doi.org/10.31799/1684-8853-2022-1-54-67.

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Introduction: the development of technologies in the field of information and telecommunications, as well as the unification of networks, and in particular the construction of distributed VoIP telephony networks, allow us to formulate the problem that the known methods of managing the protection of VoIP networks are not effective enough in modern conditions, since they take into account only one side of the information confrontation. Purpose: To develop a method for ensuring the information security of a VoIP telephony network, which allows to increase the probability of VoIP network security

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Emara, Tamer Z. "Maximizing Power Saving for VoIP over WiMAX Systems." International Journal of Mobile Computing and Multimedia Communications 7, no. 1 (2016): 32–40. http://dx.doi.org/10.4018/ijmcmc.2016010103.

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The voice-over-Internet protocol (VoIP) service is expected to be widely supported in wireless mobile networks. Mobile Broadband Wireless networks VoIP service to users with high mobility requirements, connecting via portable devices which rely on the use of batteries by necessity. Energy consumption significantly affects mobile subscriber stations in wireless broadband access networks. Efficient energy saving is an important and challenging issue because all mobile stations are powered by limited battery lifetimes. Therefore, the authors propose an adaptive mechanism suitable for VoIP service

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Abhishek, R. Bhat, S. V. Abhishek, Acharya Akash, and P. S. Amruth. "Voice over Internet Protocol (VoIP) - A Review." International Journal of Innovative Science and Research Technology 7, no. 8 (2022): 850–53. https://doi.org/10.5281/zenodo.7045394.

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Voice over Internet protocol (VoIP), is a modern method of communication. The field of "IP Telephony" is growing more and more popular today. Voice over Internet Protocol (VoIP) is the term used to describe the transmission of voice messages over packetswitched IP networks. One of the most recent forms of communication is VoIP. VoIP presents opportunities as well as security challenges, as is the case with the majority of modern technology. In contrast to the traditional circuit-based telephony, it features a distinctive architecture. VoIP is hence vulnerable to a variety of security

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Manyinsa, Eliud M., S. Musyoki, and H. Tarus. "Analysis and Simulation of Wired VoIP Networks compared to Wireless VoIP." IOSR Journal of Electrical and Electronics Engineering 11, no. 04 (2016): 35–41. http://dx.doi.org/10.9790/1676-1104043541.

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Faisal, Mohammed, Jia Uddin, and Shimul Shil. "Performance of VoIP Networks Using MPLS Traffic Engineering." Advanced Materials Research 457-458 (January 2012): 927–30. http://dx.doi.org/10.4028/www.scientific.net/amr.457-458.927.

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The implementation of Voice over Internet Protocol (VoIP) technology is on the increase because of its ability to enhance operating efficiency and reduce infrastructure cost. Voice and data packets traverse over IP networks with fixed maximum capacity. But susceptibility to traffic congestion which results in delay and packet losses is still a major challenge of VoIP technology. Multiprotocol Label Switching Protocol (MPLS) with Traffic Engineering (TE) is an approved standard technology that has the capabilities to minimize network congestion and improve network performance by reducing delay

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Syafrinal, Syafrinal. "Implementasi VoIP Sebagai Media Komunikasi pada Dinas Perhubungan Komunikasi Informasi dan Telematika Aceh." Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) 3, no. 2 (2019): 64. http://dx.doi.org/10.35870/jtik.v3i2.88.

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The purpose of this study is to design and build voice communication over IP networks using the Briker operating system. The use of VoIP Server to make calls from VoIP clients to fellow VoIP clients, and from people's VoIP numbers to one of the VoIP clients, and also looking for a comparison of public IP client and local IP voice delay at Dishubkomintel Aceh. The research method consisted of several stages namely; 1) System Design, 2) Network Topology, 3) Server-Side Design, 4) Client-Side Design, 5) Operating System and Application Installation, 6) Configuration, 7) VoIP Network Connectivity

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Shaher, Daoud, and Qu Yanzhen. "A COMPREHENSIVE STUDY OF DSCP MARKINGS' IMPACT ON VOIP QOS IN HFC NETWORKS." International Journal of Computer Networks & Communications (IJCNC) 11, no. 5 (2019): 1–19. https://doi.org/10.5281/zenodo.3470690.

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Various factors can have a significant degrading impact on the residential Voice over Internet Protocol (VoIP) phone services’ quality. Hybrid fibre- coaxial (HFC) networks typically carry three types of traffic that include voice, data, and video. Unlike data and video, some delays or packet loss can result in a noticeable degraded impact on a VoIP’s phone conversation. This paper will analyze and assess VoIP traffic prioritization and its impact on VoIP’s quality of service (QoS) based on the concept of differentiated services code point (DSCP) markings. Call testing examin

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Nisar, Kashif, Angela Amphawan, and Suhaidi B. Hassan. "Comprehensive Structure of Novel Voice Priority Queue Scheduling System Model for VoIP Over WLANs." International Journal of Advanced Pervasive and Ubiquitous Computing 3, no. 4 (2011): 50–70. http://dx.doi.org/10.4018/japuc.2011100106.

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Voice over Internet Protocol (VoIP) has grown quickly in the world of telecommunication. Wireless Local Area Networks (WLANs) are the most performance assuring technology for wireless networks, and WLANs have facilitated high-rate voice services at low cost and good flexibility. In a voice conversation, each client works as a sender or a receiver depending on the direction of traffic flow over the network. A VoIP application requires high throughput, low packet loss, and a high fairness index over the network. The packets of VoIP streaming may experience drops because of the competition among

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Vakilinia, Shahin, Mohammadhossein Alvandi, Mohammadreza Khalili Shoja, and Iman Vakilinia. "Cross-Layered Secure and QoS Aware Design of VOIP over Wireless Ad-Hoc Networks." International Journal of Business Data Communications and Networking 9, no. 4 (2013): 23–45. http://dx.doi.org/10.4018/ijbdcn.2013100102.

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In this paper, Cross-layer design has been used to provide quality of service (QoS) and security at the same time for VOIP over the wireless ad-hoc network. In this paper the authors extend their previous work (i.e. Multi-path Multi-Channel Protocol Design for Secure QoS-Aware VOIP in Wireless Ad-Hoc Networks) by adding transport and application layers considerations. The goal of this paper is to support QoS and security of VOIP simultaneously. Simulation results shows that the proposed cross-layered protocol stack design significantly improve QoS parameters of the VOIP calls under the jamming

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Handayani, Tri Febriana, Pande Ketut Sudiarta, and I. Made Oka Widyantara. "UJI KEAMANAN KOMUNIKASI VOIP MENGGUNAKAN SISTEM KEAMANAN SRTP-TLS PADA JARINGAN NIRKABEL." Jurnal SPEKTRUM 5, no. 1 (2018): 13. http://dx.doi.org/10.24843/spektrum.2018.v05.i01.p02.

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VoIP is a technology used to communicate voice remotely and directly using data communication lines with TCP / IP protocol. But basically, VoIP communication does not guarantee data security when doing communication. A very important security system is added in VoIP communications to maintain the confidentiality of communication, so that communication can not be recorded and played back. To build a security when communicating VoIP, then in this study added an SRTP-TLS security system. The study was conducted on wireless networks by comparing the security of data communications when using the S

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Leu, Jenq-Shiou, Wei-Hsiang Lin, Wen-Bin Hsieh, and Chien-Chih Lo. "Design and Implementation of a VoIP Broadcasting Service over Embedded Systems in a Heterogeneous Network Environment." Scientific World Journal 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/917060.

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As the digitization is integrated into daily life, media including video and audio are heavily transferred over the Internet nowadays. Voice-over-Internet Protocol (VoIP), the most popular and mature technology, becomes the focus attracting many researches and investments. However, most of the existing studies focused on a one-to-one communication model in a homogeneous network, instead of one-to-many broadcasting model among diverse embedded devices in a heterogeneous network. In this paper, we present the implementation of a VoIP broadcasting service on the open source—Linphone—in a heteroge

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Pertovt, Erik, Kemal Alic, Aleš Švigelj, and Mihael Mohorcic. "Performance Evaluation of VoIP Codecs over Network Coding in Wireless Mesh Networks." WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (December 28, 2021): 185–91. http://dx.doi.org/10.37394/23204.2021.20.24.

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Voice over Internet protocol (VoIP) is used for transmitting voice signals in a packet-switched Internet protocol (IP) networks in real time. For transmitting voice over a wireless mesh networks (WMNs), the analog voice signal has to be digitalized, encoded, and packetized. Codecs based on different Quality of Service (QoS) requirements are used. One of the main QoS requirements is that packets are transmitted through the network in real time; one-way transmission time or End-to-End (ETE) packet delay, and packet delay variation or jitter have to be lower than thresholds. ETE delay depends on

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21

Farooq, Muhammad Shoaib, and HIRA FIRDOUS. "COMPERATIVE ANALYSIS OF VOICE CODECS FOR LTE COMMUNICATION NETWORKS." VFAST Transactions on Software Engineering 10, no. 1 (2022): 39–45. http://dx.doi.org/10.21015/vtse.v10i1.947.

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4G mobile connectivity protocol, LTE (Long Term Evolution), is lower dormancy and higher data rates. LTE overseers may utilize the current circuit to control voice through the fallback procedure Networks exchanged as LTE is totally Internet Protocol (IP) advancement. Voice over IP administrations (VoIP) are needed to give the voice over IP associations, similar to the Internet, to prevent this. Voice Codec is one of the basic sections of VoIP that can be communicated on Internet and change simple signs into compacted computerized parcels. In any case, there are various sorts of codecs that lif

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Prasetya, Andhini Lionita, Farida Arinie, and Muhammad Syirajuddin S. "Utilization of Fiber Optic Network in Support of Voip Infrastructure: Case Study of Implementation at State Polytechnic of Malang." West Science Information System and Technology 2, no. 03 (2024): 328–34. https://doi.org/10.58812/wsist.v2i03.1250.

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In the modern era, the need for fast and high-performance communication is crucial to support the advancement of information technology. Voice Over Internet Protocol (VoIP) enables voice transmission over IP networks, offering cost savings compared to conventional telephony. The State Polytechnic of Malang (Polinema) transitioned from a conventional Private Automatic Branch Exchange (PABX) system, which is now difficult to maintain, to a custom Internet Protocol Private Branch Exchange (IP PBX) system that is more flexible and integrated with existing data networks. The use of Ethernet Passive

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Maheswari, K., and A. Balamurugan. "Voice over internet protocol codec performance in interactive streaming environment." i-manager's Journal on Communication Engineering and Systems 13, no. 1 (2024): 16. http://dx.doi.org/10.26634/jcs.13.1.20435.

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Voice over Internet Protocol (VoIP) is an interactive telecommunication technology that suggests shared, cooperative, and quality transactions in the form of communications over the internet. VoIP normally differs from traditional and conventional circuit-based networks in the form of a low rate because all the communication takes place through the internet. The user has to pay only for an internet connection. Real-time voice data transmission is very difficult when compared with ordinary text data transmission. A main challenge in telecom engineering is maintaining quality. The VoIP transmiss

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Liang, Gui Cai, and Yao Zhong Wu. "The Design of Network Communication System for Smart Phones Based on VoIP." Advanced Materials Research 1049-1050 (October 2014): 2010–13. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.2010.

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Along with the computer technology, network transmission technology and the rapid development of digital signal processing technology, the application of real-time multimedia services based on IP packet networks more and more, including VoIP is a typical multimedia communication based on IP packet network business, has become the hot topics in the study of the current technology. As a network researchers, to research and development of VoIP technology is of great significance. In this paper, the VoIP key technologies were studied, especially the SIP agreement, then put forward and designed a k

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Washima Tuleun. "Design of an asterisk-based VoIP system and the implementation of security solution across the VoIP network." World Journal of Advanced Research and Reviews 23, no. 1 (2024): 875–906. http://dx.doi.org/10.30574/wjarr.2024.23.1.2048.

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Voice over Internet Protocol (VoIP) is a rapidly advancing technology that facilitates the transmission of voice and audio signals over the Internet or an IP-based network in real-time. This technology has seen a significant rise in demand due to its advantages over traditional circuit-switched telephony, including lower call rates, reduced operational costs, easier management, and enhanced call features. However, the growth in VoIP usage has also increased the potential for various security threats and attacks, jeopardizing the privacy, confidentiality, and integrity of transmitted data. This

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Washima, Tuleun. "Design of an asterisk-based VoIP system and the implementation of security solution across the VoIP network." World Journal of Advanced Research and Reviews 23, no. 1 (2024): 875–906. https://doi.org/10.5281/zenodo.14792201.

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Voice over Internet Protocol (VoIP) is a rapidly advancing technology that facilitates the transmission of voice and audio signals over the Internet or an IP-based network in real-time. This technology has seen a significant rise in demand due to its advantages over traditional circuit-switched telephony, including lower call rates, reduced operational costs, easier management, and enhanced call features. However, the growth in VoIP usage has also increased the potential for various security threats and attacks, jeopardizing the privacy, confidentiality, and integrity of transmitted data. This

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Li, Yung-Ming, Jhih-Hua Jhang-Li, and Ding-Yuan Cheng. "Reward mechanisms for P2P VoIP networks." Information Technology and Management 11, no. 2 (2010): 91–105. http://dx.doi.org/10.1007/s10799-010-0070-5.

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Rao, H. C., Yi-Bing Lin, and Sheng-Lin Cho. "iGSM: VoIP service for mobile networks." IEEE Communications Magazine 38, no. 4 (2000): 62–69. http://dx.doi.org/10.1109/35.833558.

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Vale, Eduardo Rodrigues, and Julio Cesar R. Dal Bello. "VoIP Packet Optimization for UMTS Networks." IOSR Journal of Electronics and Communication Engineering 9, no. 3 (2014): 73–76. http://dx.doi.org/10.9790/2834-09367376.

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Shintre, Saurabh, Virgil Gligor, and Jo ao Barros. "Anonymity Leakage in Private VoIP Networks." IEEE Transactions on Dependable and Secure Computing 15, no. 1 (2018): 14–26. http://dx.doi.org/10.1109/tdsc.2015.2513761.

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Riki, Riki, Aditiya Hermawan, and Yusuf Kurnia. "Voice Over Internet Protocol Based Communication Design (VoIP) With 3CXSystemPhone On Android Smartphone." bit-Tech 1, no. 1 (2018): 1–8. http://dx.doi.org/10.32877/bt.v1i1.2.

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TCP\IP protocol can be connected to various computer data networks in the world. This protocol increasingly exists and is needed so that many parties develop it to vote through this protocol. Voice Over Internet Protocol technology is the answer to that desire. This technology is able to convert analog voice (human voice) into data packets then through public internet data networks and private intranet data packets are passed, so that communication can occur. With VoIP communication costs can be reduced so that it can reduce investment costs and conversations (cost saving) or even up to 100% f

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El brak, Said, Mohamed El brak, and Driss Benhaddou. "A New QoS Management Scheme for VoIP Application over Wireless Ad Hoc Networks." Journal of Computer Networks and Communications 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/945695.

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Nowadays, mobile ad hoc networks (MANETs) have to support new applications including VoIP (voice over IP) that impose stringent QoS (quality of service) constraints and requirements. However, VoIP applications make a very inefficient use of the MANET resources. Our work represents a first step toward improving aspects at the network layer by addressing issues from the standpoint of adaptation, claiming that effective adaptation of routing parameters can enhance VoIP quality. The most important contribution is the adaptive OLSR-VA algorithm which provides an integrated environment where VoIP ac

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Mutasim, Mohammed EL Khier. "QoS of VOIP Over Broadband Network." International Journal of Engineering and Management Research 9, no. 5 (2019): 122–25. https://doi.org/10.31033/ijemr.9.5.17.

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The paper discussed the implementation of the use of Voice over Internet Protocol services, which is resulting in the enormous growth of broadband network. The main objective of this paper is to evaluate the QoS of VOIP for different broad band networks. Wired, Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX) and Universal Mobile Telecommunication System (UMTS) networks were implemented in OPNET Modeler The quality is compared using different QoS parameters such as end-to-end delay, Mean Opion Score (MOS), throughput and jitter. The VoIP codes used in

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Putra, Dwi Prastantio. "ANALISIS KEAMANAN VOICE OVER INTERNET PROTOCOL (VOIP) OVER VIRTUAL PRIVATE NETWORK (VPN)." Jurnal Informatika dan Rekayasa Perangkat Lunak 2, no. 3 (2021): 324–33. http://dx.doi.org/10.33365/jatika.v2i3.1232.

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This research was conducted on the basis of the influence of security systems that play a role in encrypting data on VoIP communication systems, with the security technology of PPTP VPN computer networks with the system passing data in a virtual private ip or as a tunnel for secure data transmission media. The results obtained from security analysis for the implementation of security methods on PPTP VPNs, then the data to help developers in terms of building a secure VoIP communication system. Basiclly ZRTP uses the Diffie-Hellman key exchange as a key exchange of communication between clients

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Mohd Ramly, Athirah, Zi Wei Ng, Yahya Khamayseh, Charis Shwu Chen Kwan, Angela Amphawan, and Tse-Kian Neo. "Review and Enhancement of VoIP Security: Identifying Vulnerabilities and Proposing Integrated Solutions." Journal of Telecommunications and the Digital Economy 12, no. 4 (2024): 109–36. https://doi.org/10.18080/jtde.v12n4.1022.

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The prolific use of Voice over Internet Protocol (VoIP) causes this system’s vulnerabilities to become a major concern for individuals or organizations. Based on this concern, this paper aims to provide a comprehensive analysis of the cyber threats and attacks in VoIP systems. VoIP offers several benefits and advantages; however, it poses significant security risks which can cause serious consequences. At the beginning of this paper, an overview of VoIP, including its architecture, components, protocols and advantages are discussed. Following this, attack vectors and component vulnerabilities

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POTORAC, A. D. "Considerations on VoIP Throughput in 802.11 Networks." Advances in Electrical and Computer Engineering 9, no. 3 (2009): 45–50. http://dx.doi.org/10.4316/aece.2009.03009.

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Periakarruppan, Ganesan, and Hairul Azhar b. Abdul Rashid. "Packet based echo cancellation for VoIP networks." Computers & Electrical Engineering 33, no. 2 (2007): 139–48. http://dx.doi.org/10.1016/j.compeleceng.2006.02.006.

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Mase, K. "Toward scalable admission control for VoIP networks." IEEE Communications Magazine 42, no. 7 (2004): 42–47. http://dx.doi.org/10.1109/mcom.2004.1316529.

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Thermos, Peter. "Evaluating the Security of Enterprise VoIP Networks." IT Professional 11, no. 3 (2009): 30–36. http://dx.doi.org/10.1109/mitp.2009.47.

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Prabhakar, Gokul, Rajeev Rastogi, and Marina Thottan. "OSS architecture and requirements for VoIP networks." Bell Labs Technical Journal 10, no. 1 (2005): 31–45. http://dx.doi.org/10.1002/bltj.20077.

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Nazih, Waleed, Yasser Hifny, Wail S. Elkilani, Habib Dhahri, and Tamer Abdelkader. "Countering DDoS Attacks in SIP Based VoIP Networks Using Recurrent Neural Networks." Sensors 20, no. 20 (2020): 5875. http://dx.doi.org/10.3390/s20205875.

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Many companies have transformed their telephone systems into Voice over IP (VoIP) systems. Although implementation is simple, VoIP is vulnerable to different types of attacks. The Session Initiation Protocol (SIP) is a widely used protocol for handling VoIP signaling functions. SIP is unprotected against attacks because it is a text-based protocol and lacks defense against the growing security threats. The Distributed Denial of Service (DDoS) attack is a harmful attack, because it drains resources, and prevents legitimate users from using the available services. In this paper, we formulate det

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Nazih, Waleed, Wail S. Elkilani, Habib Dhahri, and Tamer Abdelkader. "Survey of Countering DoS/DDoS Attacks on SIP Based VoIP Networks." Electronics 9, no. 11 (2020): 1827. http://dx.doi.org/10.3390/electronics9111827.

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Voice over IP (VoIP) services hold promise because of their offered features and low cost. Most VoIP networks depend on the Session Initiation Protocol (SIP) to handle signaling functions. The SIP is a text-based protocol that is vulnerable to many attacks. Denial of Service (DoS) and distributed denial of service (DDoS) attacks are the most harmful types of attacks, because they drain VoIP resources and render SIP service unavailable to legitimate users. In this paper, we present recently introduced approaches to detect DoS and DDoS attacks, and classify them based on various factors. We then

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Kafke, John, and Thiago Viana. "Call Me Maybe: Using Dynamic Protocol Switching to Mitigate Denial-of-Service Attacks on VoIP Systems." Network 2, no. 4 (2022): 545–67. http://dx.doi.org/10.3390/network2040032.

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Voice over IP is quickly becoming the industry standard voice communication service. While using an IP-based method of communication has many advantages, it also comes with a new set of challenges; voice networks are now accessible to a multitude of internet-based attackers from anywhere in the world. One of the most prevalent threats to a VoIP network are Denial-of-Service attacks, which consume network bandwidth to congest or disable the communication service. This paper looks at the current state of research into the mitigation of these attacks against VoIP networks, to see if the mechanism

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Nisar, Kashif, and Suhaidi Hassan. "Mobility of Mobile Station in Voice Priority Queue Scheduler for VoIPWLANs." Journal of Communications and Computer Engineering 2, no. 3 (2011): 28. http://dx.doi.org/10.20454/jcce.2012.249.

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Voice over Internet Protocol (VoIP) is growing rapidly during this decade. VoIP is seen as a short-term and long-trem transmission for voice and audio traffic. Meanwhile, VoIP is moving on Wireless Local Area Networks (WLANs) based on IEEE 802.11 standards. Currently, many packet scheduling algorithms like Weighted Fair Queuing (WFQ), was mainly designed to provide the bandwidth reservation. The Strict Priority (SP) is low-cost to maintain the delay sensitive voice traffic. Also, a number of research scheduling solutions have been proposed like General processor sharing (GPS), Deficit Round Ro

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Nisar, Kashif. "Fourth Stage of Voice Priority Queue for VoIP over WLANs." International Journal of Interdisciplinary Telecommunications and Networking 4, no. 2 (2012): 48–63. http://dx.doi.org/10.4018/jitn.2012040104.

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Voice over Internet Protocol (VoIP) is growing rapidly during this decade. VoIP is seen as a short-term and long-term transmission for voice and audio traffic and is moving on Wireless Local Area Networks (WLANs) based on IEEE 802.11 standards. Currently, packet scheduling algorithms like Weighted Fair Queuing (WFQ), was mainly designed to provide the bandwidth reservation. The Strict Priority (SP) is low-cost to maintain the delay sensitive voice traffic. Also, a number of research scheduling solutions have been proposed like General processor sharing (GPS), Deficit Round Robin (DRR), Content

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Arif, Rabbai San, Yuli Fitrisia, and Agus Urip Ari Wibowo. "Implementasi Voip Server Berbasis IPV6 Dengan Raspberry PI." Manutech : Jurnal Teknologi Manufaktur 9, no. 01 (2019): 47–54. http://dx.doi.org/10.33504/manutech.v9i01.32.

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Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity t

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Susiani Pande, Putu Sintia, Pande Ketut Sudiarta, and I. Made Oka Widyantara. "PENGUKURAN KINERJA VOIP DENGAN CODEC G.711?, G.711a DAN G.729 DI MEDIA TRANSMISI NIRKABEL BERBASIS SIP DAN IAX." Jurnal SPEKTRUM 5, no. 1 (2018): 21. http://dx.doi.org/10.24843/spektrum.2018.v05.i01.p04.

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Voice over Internet Protocol (VoIP) is a technology that can send real-time data with IP-based networks (Internet Protocol). In VoIP technology with wireless network has several problems that cause the performance of the network to be varied due to the QoS (Quality of Service) include delay, jitter, packet loss and MOS that affect the wireless network. This research uses G.711?, G.711a and G.729 codec based on SIP and IAX server on wireless network which then the QoS result from each codec compared with ITU-T standard which become the reference of whether the network is good or not so that lat

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Nedyalkov, Ivan. "Studying the Impact of a UDP DoS Attack on the Parameters of VoIP Voice and Video Streams." Future Internet 17, no. 4 (2025): 139. https://doi.org/10.3390/fi17040139.

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This work studies the hypothesis of whether the UDP DoS attack affects voice and video flows in a VoIP network. It is a continuation of a previous work that studied the same hypothesis, but the VoIP server was under different types of TCP DoS attacks. The studied VoIP platform is the Asterisk FreePBX. A simple IP network model was developed for the purpose of the study. The used platform for the modeling of IP networks is GNS3. The study is conventionally divided into two parts: in the first part, only voice streams are exchanged in the network, and the server is subjected to a UDP DoS attack,

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Stojanovic, Zvezdan, and Djordje Babic. "Bandwidth calculation for VoIP networks based on PSTN statistical model." Facta universitatis - series: Electronics and Energetics 23, no. 1 (2010): 73–88. http://dx.doi.org/10.2298/fuee1001073s.

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This paper shows an analysis how to calculate proper bandwidth for VoIP calls after proper dimensioning of PSTN network. For this purpose, we use Erlang B and extended Erlang B formulae. Further, we have developed a software tool, named Bandwidth Calculator to calculate proper number of the circuits on the PSTN side and after that IP bandwidth. Traffic analysis is conducted for VoIP networks considering impact of many factors on the bandwidth such as: voice codecs, samples, VAD, RTP compression. The results obtained by bandwidth calculator are compared to simulation results and data obtained b

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Rattal, Salma, Abdelmajid Badri, and Mohammed Moughit. "A New Wireless VoIP Signaling Device Supporting SIP and H.323 Protocols." Journal of Computer Networks and Communications 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/605274.

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Nowadays, VoIP is a technology with a great demand and wireless networks are increasingly deployed. Each of these has its own technology constraints. For VoIP, it is very important to take into consideration the need to provide a high quality service according to well-defined standard transmission (jitter, end-to-end delay, MOS, and packet loss). However, wireless networks (IEEE 802.11) are based on radio which undergoes a number of technical constraints to achieve theoretical transmission rates; among these constraints the number of users of the networks, the distance between the client and t

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