• Title/Summary/Keyword: mVoIP

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Industry Activation Scheme through mVoIP Technology Trends and Market Analysis (mVoIP 기술동향 및 시장분석을 통한 산업 활성화 방안)

  • Park, Se-Hwan;Park, Jong-Kyu;Kim, Cheong-Ghil
    • Journal of Digital Contents Society
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    • v.13 no.4
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    • pp.477-482
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    • 2012
  • The mVoIP service is the technology which focuses on the wireless data service as the IP network having the transmission rate of 100 Mbps classes on the high-speed middle of movement through the WiFi, WiBro and 3G mobile radio communication network, and etc. and is developed. Since 2010, the mVoIP (mobile VoIP) service shows the rapid growth due to 4G-LTE service seriously disclosed from July with the Smart phone and 2,011 it begins to be rapidly popularized. In this research, additionally the mVoIP service industry activation plan is presented with the trends of technology development including the chip-set/module/terminal, etc. based upon local and foreign market trend searchlight through the market demand analysis. The mVoIP service downloads App to the mobile apparatus and or can provide the service as the software through the WiFi network. Therefore, the change which is large in the products development aspect is to be have no. Expected to is being provided as the added service in the case of 4G-LTE as a matter of course, the service deployment where it is based on the market principle and demand needs is needed.

mVoIP Vulnerability Analysis And its Countermeasures on Smart Phone (스마트폰에서 mVoIP 취약성 분석 및 대응 방안)

  • Cho, Sik-Wan;Jang, Won-Jun;Lee, Hyung-Woo
    • Journal of the Korea Convergence Society
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    • v.3 no.3
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    • pp.7-12
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    • 2012
  • mVoIP (mobile Voice over Internet Protocol) service is a technology to transmit voice data through an IP network using mobile device. mVoIP provides various supplementary services with low communication cost. It can maximize the availability and efficiency by using IP-based network resources. In addition, the users can use voice call service at any time and in any place, as long as they can access the Internet on mobile device easily. However, SIP on mobile device is exposed to IP-based attacks and threats. Observed cyber threats to SIP services include wiretapping, denial of service, and service misuse, VoIP spam which are also applicable to existing IP-based networks. These attacks are also applicable to SIP and continuously cause problems. In this study, we analysis the threat and vulnerability on mVoIP service and propose several possible attack scenarios on existing mobile VoIP devices. Based on a proposed analysis and vulnerability test mechanism, we can construct more enhanced SIP security mechanism and stable mobile VoIP service framework after eliminating its vulnerability on mobile telephony system.

A Study of Wired and wireless VoIP vulnerability analysis and hacking attacks and security (유무선 VoIP 취약점 분석과 해킹공격 및 보안 연구)

  • Kwon, Se-Hwan;Park, Dea-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.4
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    • pp.737-744
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    • 2012
  • Recently VoIP has provided voice(both wired and wireless from IP-based) as well as the transmission of multimedia information. VoIP used All-IP type, Gateway type, mVoIP etc. Wired and wireless VoIP has security vulnerabilities that VoIP call control signals, illegal eavesdropping, service misuse attacks, denial of service attack, as well as wireless vulnerabilities etc. from WiFi Zone. Therefore, the analysis of security vulnerabilities in wired and wireless VoIP and hacking incidents on security measures for research and study is needed. In this paper, VoIP (All-IP type, and for Gateway type) for system and network scanning, and, IP Phone to get the information and analysis of the vulnerability. All-IP type and Gateway type discovered about the vulnerability of VoIP hacking attacks (Denial of Service attacks, VoIP spam attacks) is carried out. And that is a real VoIP system installed and operated in the field of security measures through research and analysis is proposed.

Transmission Performance of VoIP Traffic over MANETs (MANET에서 VoIP 트래픽의 전송성능)

  • Kim, Young-Dong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.5
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    • pp.1109-1116
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    • 2010
  • In this paper, some performance characteristics of VoIP(Voice over Internet Protocol) for MANET(Mobile Ad-hoc Networks) with simulation is studied and appropriate condition for implementation of VoIP service is suggested. VoIP simulator is implemented with NS(Network Simulator)-2. VoIP traffic for simulation is generated with some codecs of G.711, G.723.1, G.726-32, G.729A, GSM.AMR and iLBC. As simulation results for traffic transmission under $670{\times}670m$ 50node MANET environment, performance data for MOS(Mean Opinion Score), network delay, packet loss rate and transmission bandwidth are measured. Normalized analysis about measured results shows that maximum VoIP connection satisfying VoIP service quality condition is 15.

Industry Activation Scheme through mVoIP Technology Trends and Market Analysis

  • Park, Se-Hwan;Park, Jong-Kyu;Kim, Cheong-Ghil
    • International journal of advanced smart convergence
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    • v.1 no.2
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    • pp.59-63
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    • 2012
  • The mVoIP service is the technology which focuses on the wireless data service as the IP network having the transmission rate of 100 Mbps classes on the high-speed middle of movement through the WiFi, WiBro and 3G mobile radio communication network, and etc. and is developed. Since 2010, the mVoIP (mobile VoIP) service shows the rapid growth due to 4G-LTE service seriously disclosed from July with the Smart phone and 2,011 it begins to be rapidly popularized. In this research, additionally the mVoIP service industry activation plan is presented with the trends of technology development including the chip-set/module/terminal, etc. based upon local and foreign market trend searchlight through the market demand analysis. The mVoIP service downloads App to the mobile apparatus and or can provide the service as the software through the WiFi network. Therefore, the change which is large in the products development aspect is to be have no. Expected to is being provided as the added service in the case of 4G-LTE as a matter of course, the service deployment where it is based on the market principle and demand needs is needed.

Mobile VoIP 서비스가 이동통신 사업자에게 미치는 영향분석

  • Choe, Hong-Sik;Go, Seong-Hyeok;Lee, Sa-Ya
    • 한국경영정보학회:학술대회논문집
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    • 2007.06a
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    • pp.911-915
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    • 2007
  • Mobile VoIP(이하 m-VoIP) 서비스의 도입에 따른 이동통신 사업자에게 미치는 영향을 크게보면 음성통화 서비스의 요금정책의 영향, 상호접속제도의 영향 그리고 음성통화 수익성에 영향으로 나누어 생각해 볼 수 있다. 본 논문에서는 m-VoIP 도입에 따른 이통사의 수입변화를 분석함으로서 그 영향력을 파악 하였다. 분석방법은 이통사의 수입을 접속료 수입과 음성통화 수입으로 나누고, 각각의 손실분 및 이익분을 추산해보는 방법을 사용 하였다.

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Multiplexing VoIP Packets over Wireless Mesh Networks: A Survey

  • Abualhaj, Mosleh M.;Kolhar, Manjur;Qaddoum, Kefaya;Abu-Shareha, Ahmad Adel
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.8
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    • pp.3728-3752
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    • 2016
  • Wireless mesh networks (WMNs) have been increasingly applied in private and public networks during the last decade. In a different context, voice over IP (VoIP) has emerged as a new technology for making voice calls around the world over IP networks and is replacing traditional telecommunication systems. The popularity of the two technologies motivated the deployment of VoIP over WMNs. However, VoIP over WMNs suffers from inefficient bandwidth utilization because of two reasons: i) attaching 40-byte RTP/UDP/IP header to a small VoIP payload (e.g., 10 bytes) and ii) 841 μs delay overhead of each packet in WMNs. Among several solutions, VoIP packet multiplexing is the most prominent one. This technique combines several VoIP packets in one header. In this study, we will survey all the VoIP multiplexing methods over WMNs. This study provides a clear understanding of the VoIP bandwidth utilization problem over WMNs, discusses the general approaches in which packet multiplexing methods could be performed, provides a detailed study of present multiplexing techniques, shows the aspects that hinder the VoIP multiplexing methods, discusses the factors affected by VoIP multiplexing schemes, shows the merits and demerits of different multiplexing approaches, provides guidelines for designing a new improved multiplexing technique, and provides directions for future research. This study contributes by providing guidance for designing a suitable and robust method to multiplex VoIP packets over WMNs.

Analysis of Jitter Buffer for VoIP Transmission Quality Improvement (VoIP 전송 품질 향상을 위한 지터 버퍼 분석)

  • Park, Tae-Hwan;Park, Seok-Cheon;Park, Jung-Hwan
    • Proceedings of the Korea Information Processing Society Conference
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    • 2015.04a
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    • pp.87-89
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    • 2015
  • 최근 빠른 속도와 사용자의 증가로 VoIP 기술에 대한 관심이 높아지고 있다. 본 논문에서는 VoIP의 개요와 VoIP 환경에서 전송 품질에 영향을 주는 요소인 지터의 정의와 지터를 개선하기 위한 지터 버퍼에 대해 설명한다. 지터 버퍼는 크게 고정형과 적응형, 두 가지로 나누어지며 지터 버퍼에 대한 분석을 통해 지터 버퍼 성능 향상 방안을 제안한다.

A Prototype Implementation of VoIP Emergency Service based on All-IP (All-IP 기반 VoIP 긴급통화 서비스 프로토타입 구현)

  • Chon, Ji-Hun;Kim, Jin-Hee;Choi, Sun-Wan;Lee, Il-Jin;Kang, Shin-Gak
    • Proceedings of the Korea Information Processing Society Conference
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    • 2009.11a
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    • pp.447-448
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    • 2009
  • VoIP 서비스에서 긴급 통화 서비스를 제공하기 위해서는 PSTN 망에 있는 소방서와 같은 긴급 서비스 센터에게 호를 연결한다. PSTN 망에 있는 긴급 서비스 센터를 통해 제공되는 VoIP 긴급통화 서비스는 VoIP 서비스가 가지고 있는 여러 멀티미디어 서비스를 사용할 수 없다. 이러한 문제를 해결하기 위해서는 모든 구성요소가 IP 망에서 제공되어야 한다. 본 논문에서는 모든 구성요소가 IP 망에서 제공되는 All-IP 기반 VoIP 긴급통화 서비스를 제공하기 위한 프로토타입을 구현하였다.

Trend of Emergency Service Regulation on VoIP in U.S.A. (미국의 VoIP 긴급 통화 정책 동향)

  • Huh, M.Y.;Park, S.O.;Kang, S.G.
    • Electronics and Telecommunications Trends
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    • v.22 no.1 s.103
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    • pp.140-150
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    • 2007
  • 차세대 유무선 통신망이 급속하게 All-IP 기반으로 전환되어 감에 따라 전세계적으로 인터넷전화 서비스가 기존 유선전화를 빠르게 대체해 나가고 있다. 그러나, 이와 관련된 적절한 규제없이 서비스가 진행됨에 따라 시민의 안전을 위협하는 사례가 발생되고있다. 따라서, 미국의 연방통신위원회(FCC)에서는 2005년 5월 인터넷전화 서비스 제공업체에게 긴급통화 서비스 제공에 대한 의무를 규정한 VoIP E911 고시(order)를 제정하였다. VoIP E911 고시는 고시의 대상이 되는 서비스를 정의하고, 고시의 발표일이후 120일 이내인 2005년 11월 28일까지 E911 서비스 요구사항을 준수하라는 내용을 담고 있다. 이후 2005년 11월 7일에 연방통신위원회(FCC)에서는 인터넷전화 서비스 제공업체들에게 VoIP E911 고시의 이행현황에 대하여 2005년 11월 28일까지 제출하라고 하였다. 따라서, 본 고에서는 연방통신위원회(FCC)의 VoIP E911 고시(order)를 중심으로 미국의 VoIP 긴급통화 정책동향에 대하여 분석하고자 한다.