Performance Analysis on the Effect of G.729, Speex and GSM Speech Codec on 802.11g Wireless Local Area Network over VoIP using Packet Jitter

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Provided by: Science & Engineering Research Support soCiety (SERSC)
Topic: Security
Format: PDF
Voice over IP or VoIP is a term used in IP telephony for a set of facilities that use the Internet Protocol (IP) to deliver voice information. It all started when in February of 1995 by a small company called Vocaltec Inc. One of the main reason why VoIP became so popular and slowly but surely replacing the traditional Public Switch Telephone Network (PSTN) is when PSTN line is being used, the authors typically pay for time used to a PSTN line company, in other words the more time they stay at phone and more they need to pay.
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