Results 131 to 140 of about 1,414 (184)
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Private surveys on VoIP

Computer Communications, 2015
We propose an eVoting framework to preserve the privacy of the voters.The voters will receive questions depending on their answers to previous questions.The platform is built upon a cloud computing system, VoIP technologies and a new eVoting platform. In a question-driven survey, the answers to one question may decide which question is presented next ...
Juan Vera del Campo   +3 more
openaire   +1 more source

Virtualization of VoIP laboratories

2015 14th RoEduNet International Conference - Networking in Education and Research (RoEduNet NER), 2015
The traditional telephony has been replaced by digital communications and the most used at the moment are VoIP services because of Ethernet evolution. To work in this area, the user must have solid knowledge about networking and telephony. As the technology evolves, the implementation of higher education laboratories needs to evolve at the same rate ...
Gabriel-Vasile Iana   +1 more
openaire   +1 more source

Enabling wireless VoIP

Bell Labs Technical Journal, 2007
Carrier-grade mobile Voice over Internet Protocol (VoIP) requires capacity, voice quality, and delay characteristics that equal or exceed circuit-switched designs. One challenge for enabling mobile VoIP is dealing with packets delivered at irregular intervals. Traditional receivers convert this “jitter” into end-to-end delay and frame erasures, both of
Minkyu Lee   +2 more
openaire   +1 more source

VoIP development in China

Computer, 2004
Several factors have spurred the explosive growth of VoIP phone use in China, including customer incentives such as improved voice quality and lower cost per call, and provider incentives such as higher profits and upgrade paths to next-generation technologies.
Runsheng Wang, Xiaorui Hu
openaire   +1 more source

Small World VoIP

2012
We present the analysis and design of a Small World VoIP system (SW-VoIP) which is geared towards customers that are communicating with their Small World of social contacts. We use the term Small World to refer to the Peer-to-Peer (P2P) network of a client and his contacts both incoming and outbound.
Xiaohui Yang   +3 more
openaire   +1 more source

The Study of the SIP for the VoIP

2009 Fifth International Joint Conference on INC, IMS and IDC, 2009
In this study, we discussed with the protocol of SIP of VoIP. At first, using NS2 simulation software to analysis, then we researched those entities. Because of the impact of VoIP Quality of Service (QoS) as a major factor is the rate of packet loss.
Chung-Hsin Liu, Chun-Lin Lo
openaire   +1 more source

Perseus on VoIP: Development and implementation of VoIP platforms

2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2014
Nowadays, voice over IP (VoIP) is rapidly replacing standard phone line as a telephony service of choices. However, VoIP can be exploited by an attacker using method such as eavesdropping, hijacking and etc. To ensure confidentiality and integrity of the conversation or messages sent in the network, a more secure protocol is needed.
Saran Chiwtanasuntorn   +2 more
openaire   +1 more source

The 1974 origins of VoIP

IEEE Signal Processing Magazine, 2005
This paper brings light on the digital signal processing (DSP) roots of a modern concept, voice over IP (VoIP). An example is also provided in which developments in DSP - speech coding, in particular - had a profound impact on the early development of the ARPANET, the ancestor of the Internet.
openaire   +1 more source

LB-VoIP: Enhancing access control of VoIP for secure networks

2015 International Telecommunication Networks and Applications Conference (ITNAC), 2015
Voice over IP (VoIP) has attracted the attention of secure networks for its convenient deployment, easy management and multi-service carrying capability. However, security is a big problem that must be considered if VoIP is introduced into secure networks.
Bingjie Han   +3 more
openaire   +1 more source

VoIP protection and performance improvement

Proceedings. 12th International Conference on Computer Communications and Networks (IEEE Cat. No.03EX712), 2004
A lot of ongoing work is geared towards improving the reliability, performance and QoS characteristics of service provider IP networks. In contrast, we propose novel enterprise-based techniques that exploit the fact that many enterprises are multi/dual-homed.
Mark J. Karol   +2 more
openaire   +1 more source

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