A Survey Paper on Voice over Internet Protocol (VOIP)

Shaw, Urjashee; Sharma, Bobby

doi:10.5120/ijca2016909112

Cited by 9 publications

(7 citation statements)

References 2 publications

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“…It also finds that SIP is most suitable for internal use in large and mid-sized enterprises. [15] survey findings concludes that SIP is an alternative to H.323 due to the protocol's complexity of H.323, and SIP is more popular than H.323. [5] has a similar approach to this survey.…”

Section: Background and Related Researchmentioning

confidence: 99%

Achieving Optimal Performance and Quality in LAN and WLAN for Mission-Critical Applications

Chidawanyika,

Ratnayake

2024

Springer Proceedings in Complexity

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Voice Over Internet Protocol (VoIP) properties are vital for its reliability in mission-critical applications. This research aims to find network topology, call signaling and voice codecs property combinations that meet reliability targets of VoIP communication in a Small Office Home Office (SOHO) environment where network resources may be limited but reliable and secured operation is essential. Local Area Network (LAN) and Wireless LAN (WLAN) scenarios are evaluated using Quality of Service (QoS) and Mean Opinion Score (MOS) measurements to find which property combinations satisfy predefined classes; best-quality and best-performance. The research extended Roslin et al. [1] on LAN VoIP to WLANs, and validated Khiat et al.[2]'s and Guy [3]'s work that argued SIP was effective in optimal set up. This research found that VoIP combinations offer some desirable characteristics, but at the cost of other properties required, leading to categorisation being based on interpretation of the results, concluding that though, not ideal for mission-critical applications, combinations functions well replicating real-world scenarios. Analysis also established VoIP's scalability for application-based configurations, impact of VoIP's modularity and ease-of-configuration in achieving user expectations. Further property testing can solidify VoIP's capabilities to function for mission critical environments.

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Section: Background and Related Researchmentioning

confidence: 99%

Achieving Optimal Performance and Quality in LAN and WLAN for Mission-Critical Applications

Chidawanyika,

Ratnayake

2024

Springer Proceedings in Complexity

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“…VoIP can integrate and support various services over the internet, including massage services, video streaming and voice calls over file transferring, managing caller list, audio conferencing, etc. [11].…”

Section: B Voip Flexibility Over Pstnmentioning

confidence: 99%

VoIP QoS Analysis over Asterisk and Axon Servers in LAN Environment

Khan¹,

Sattar²,

Saleem³

et al. 2019

IJACSA

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Voice over IP (VoIP) is a developing technology and a key factor in both the emerging cyberspace engineering and also an accomplishment to set up its position in the telecom industry. VoIP technology is based on internet technology; where data packets switching system is used rather than circuit switching. Whereas, an analog signal is changed over into the digital signals in the full-duplex transmission. VoIP technology is replaced with the conventional public switched telephone network (PSTN) system due to the high flexibility and low-cost. The purpose of this research work is to deliberate experimental and computational performance in the view of quality of service (QoS) parameters of VoIP over local area network (LAN) network. The VoIP systems implementation is based on two different operating system framework (Linux and Windows), whereas, Linux-based and Windows-based private branch exchanges (PBXs), such as Asterisk (Linux-open source) and Axon (window-close source) are configured, installed and verified. QoS factors (such as packet loss, delay, jitter, etc.) are observed over the Asterisk and Axon PBXs in a LAN domain with the assistance of Paessler switch activity grapher (PRTG) monitoring tool. The validations of results are looked at for QoS parameters crosswise over both PBXs with data load (i.e., file transfer and HTTP traffic) during VoIP calls. The productivity and execution of Axon and Asterisk have been equated and analyzed over experimental based outcomes.

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“…Consider a new system ′ obtained from by modifying 4 to be (4,5,2,3,5). Now 4 has a shorter message length of 2 and later deadline of 5.…”

Section: Preemptive Transmissionmentioning

confidence: 99%

“…Each message, originating from a participant, must be delivered to all the others in a real-time manner. All these real-time systems are constantly in need to optimize their Quality of Service provided to the users [2].The transfer speed is bounded by the network infrastructure itself in the hardware level. However, it is essential to theoretically understand how these routing take place so we can attempt to optimize for a more efficient algorithm.…”

Section: Introductionmentioning

confidence: 99%