scholarly journals Voice Over Internet Protocol Based Communication Design (VoIP) With 3CXSystemPhone On Android Smartphone

bit-Tech ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Riki Riki ◽  
Aditiya Hermawan ◽  
Yusuf Kurnia

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% free. VoIP implementation can be done by designing a wireless VoIP network (cable) using 3CXSystemPhone software as a PBX. In this scientific work the software used is 3CXSystemPhone 11.0, where SIP is a VoIP server which is a freeware software, in its application only requires one PC server and several PC clients (2 for example) that are connected to each other

Author(s):  
Indranil Bose ◽  
Fong Man Chun

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).


Cloud based Voice over Internet protocol (VoIP), is a new type of communication that uses Internet protocol to transfer the data packets which contains the audio data. For the past 20 years there has been an intensive research going on this field since this makes the calling system much cheaper than those taking place over PSTN (Public Switched Telephone Network). VoIP has been mainly taking place through cloud computing and this feature has its own issues but even has its own pros. This feature over cloud is facing many challenges in the terms of quality of services and security. This paper also describes the research or the development taking place in field of secured discussions. The network components and architecture have been discussed; the components described are call processors, gateways and many more. Different attacks possible on the VoIP have been discussed which include spoofing and SPIT. There are different VoIP solutions and they are based on either peer-to-peer (P2P) protocol or Session Initiation Protocol (SIP). In this paper, we have analysed about some of the essential security issues on cloud based VoIP for preventing the adaptive anomaly attacks and some other security issues of cloud computing by applying the algorithmic simulation in hadoop cluster


Author(s):  
Armando Martínez Ríos

ABSTRACTMexico lacks a scientific culture. Investigations and reports show that only has a record of 38 thousand scientific and 0.5% global of registered patents in the world. Communications and electronics engineering (ICE) is one of the three formations in the school of mechanical engineering and electrical (ESIME) unit Zacatenco from the Instituto Politécnico Nacional (IPN) Mexico. Among the objectives of this mentioned formation on its web site, is the form professionals with scientific and technological foundations; However, the curriculum includes only two subjects with these characteristics. Less than 1% of the graduates also choose to devote himself to scientific work. This paper shows the results obtained by means of a survey on the perception that students have about scientists in order to propose actions that foster a greater interest in them by the science and technology into their professional formation.RESUMENMéxico carece de una cultura científica ya que algunas encuestas muestran que solo se tiene un registro de 38 mil científicos y el 0.5% del total mundial de patentes registradas. Ingeniería en Comunicaciones y Electrónica (ICE) es una de las tres carreras de la Escuela Superior de Ingeniería Mecánica y Eléctrica (ESIME) unidad Zacatenco del Instituto Politécnico Nacional (IPN) México. Entre los objetivos de esta carrera mencionado en su sitio web, es el de formar profesionistas con fundamentos científicos y tecnológicos; sin embargo, el currículo, contempla solo dos asignaturas con estas características. Asimismo, menos del 1% de los egresados elige dedicarse a una labor científica. Este trabajo muestra los resultados obtenidos por medio de una encuesta sobre la percepción que los estudiantes tienen sobre los científicos con el fin de proponer acciones que fomenten un mayor interés en ellos por la ciencia y la tecnología dentro de su formación.


Author(s):  
Esra Musbah Mohammed Musbah ◽  
Khalid Hamed Bilal ◽  
Amin Babiker A. Nabi Mustafa

VoIP stands for voice over internet protocol. It is one of the most widely used technologies. It enables users to send and transmit media over IP network. The transition from IPv4 to IPv6 provides many benefits for internet IPv6 is more efficient than IPv4. This paper presents a performance analysis of VoIP over WLAN using IPv4 and IPv6 and OPNET software program to simulate the protocols and to investigate the QoS parameters such as jitter, delay variation, packet send, and packet received and throughputs for IP4 and IP6 and compare between them.


2021 ◽  
Vol 17 (1) ◽  
pp. 11-22
Author(s):  
Wahyu Adi Prijono

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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