“VoIP”的概念、定义、翻译、参考文献-科学参考

VoIP

Computer

The use of an IP network, in particular the Internet, to carry verbal conversations. This has been a major growth area in recent years, with several companies offering services that not only allow conversations between their members but also connect to the global telephone network. Indeed, many traditional telephone providers now use VoIP internally. Implementing conversations in real time imposes special constraints because they are particularly sensitive to any delay or lost data. For example, the scope for using buffering to assemble an incoming message from data packets that might arrive out of order, be delayed, be lost and require retransmission, etc., is severely limited. There are now (2019) quite a few standards used to implement VoIP but the most significant are ITU’s H323, which was one of the first and the IETF’s SIP, which has found widespread use.
https://web.archive.org/web/20090318200924/http://iec.org/online/tutorials/h323/index.asp H323 information site
http://tools.ietf.org/html/rfc3261 The SIP specification

Electronics and Electrical Engineering

Technologies to support voice and multimedia calls over the Internet, as a replacement for traditional telephony. The main technical challenge to be overcome is that VoIP uses packet switching technology, rather than the circuit switching approach of telephony. While circuit switching guarantees an end-to-end connection for a voice call, in VoIP the digitized voice audio is broken into many packets, each of which may take a different route through the network, with considerable variations in transit time.

单词	VoIP
释义	VoIP Computer The use of an IP network, in particular the Internet, to carry verbal conversations. This has been a major growth area in recent years, with several companies offering services that not only allow conversations between their members but also connect to the global telephone network. Indeed, many traditional telephone providers now use VoIP internally. Implementing conversations in real time imposes special constraints because they are particularly sensitive to any delay or lost data. For example, the scope for using buffering to assemble an incoming message from data packets that might arrive out of order, be delayed, be lost and require retransmission, etc., is severely limited. There are now (2019) quite a few standards used to implement VoIP but the most significant are ITU’s H323, which was one of the first and the IETF’s SIP, which has found widespread use. https://web.archive.org/web/20090318200924/http://iec.org/online/tutorials/h323/index.asp H323 information site http://tools.ietf.org/html/rfc3261 The SIP specification Electronics and Electrical Engineering Technologies to support voice and multimedia calls over the Internet, as a replacement for traditional telephony. The main technical challenge to be overcome is that VoIP uses packet switching technology, rather than the circuit switching approach of telephony. While circuit switching guarantees an end-to-end connection for a voice call, in VoIP the digitized voice audio is broken into many packets, each of which may take a different route through the network, with considerable variations in transit time.
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