The Technologies of Voice over Internet Protocol (VoIP) Based Telephony System: A Review
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International Journal of Computer Trends and Technology (IJCTT) | 
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| © 2017 by IJCTT Journal | ||
| Volume-49 Number-4 |
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| Year of Publication : 2017 | ||
| Authors : Odii J. N., Nwokoma F.O., Onwuama T.U., Ejem A | ||
| DOI : 10.14445/22312803/IJCTT-V49P135 |
Odii J. N., Nwokoma F.O., Onwuama T.U., Ejem A "The Technologies of Voice over Internet Protocol (VoIP) Based Telephony System: A Review". International Journal of Computer Trends and Technology (IJCTT) V49(4):217-222, July 2017. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.
Abstract -
Voice over Internet protocol (VoIP) technology of a high degree reliability and resilience that allows users to make telephone calls over an internet protocol (IP) network has been developed in this research to tackle the various problems of Public Switched Transfer Network (PSTN) such ashigher costs per call, especially for long-distance calls ,higher infrastructure costs among others.Prototyping was deployed to build a prototype VoIP-based telephony systemwhile Cisco packet tracer was configured to run several simulation sessions of the developed specifications. The simulation results showed that VoIP can be successfully deployed to provide in a flexible manner, additional data-driven services that requires cost saving, phone portability, service mobility, integration and collaboration with other applications and there is no geographical boundary for the technology.
References
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[3] Bradley M. 2007. Asterisk; The Future of Telephony, Second Edition.
[4] Jackson, C. 2004. “A Quick Introduction to Voice over Internet Protocol”. Prepared for the University of Florida’s Public Utility Research Centre (PURC)
[5] Kualu, B. 2004. “Elastix without Tears”. The ICT serial following The Elastix IPBX distribution Development
Keywords
VOIP, SIP, IP Telephony, PSTN, Packet Tracer