所有的信号和语音通信交换机之间的交换和提供者是通过IP使用SIP和RTP协议包网络。
All signaling and voice traffic between the PBX and the provider is exchanged using SIP and RTP protocol packets over the IP network.
它不是单一的一种技术，而是综合了通讯网络的多种技术在内的一个系统，包括了信令协议、语音编解码、媒体传输和网关控制。
It is not a single but a system integrated with several technologies constructing communication network, including Signaling Protocol, Voice Codec, Media Transport and Gateway Control.
在对加密算法实现过程进行可行性研究和分析的基础上，阐述了应用adpcm编码调制技术和UDP协议进行网络环境下实时多点语音通信的方法。
Based on the feasibility study and the analysis to the encryption algorithm, the paper presents a method of the real-time multi-point voice communication in network, which USES ADPCM and UDP.
SIP是当前IP电话的会话建立和信令控制的基础协议，SIP应用也是实现基于IP网络的语音等多种多媒体应用的基本途径。
SIP is currently the basic signaling and call setup protocol for IP telephony, and SIP applications are the basic way to provide voice and other multimedia services over IP.
IP电话网关主要功能为连接传统电话网与IP网络，完成多路呼叫的信令协议和语音格式的转换。
The main function of gateways is to connect IP network and traditional phone system, and provide multi-call signaling exchanging and the conversion of voice formats.
是指以分组的形式在基于IP协议的网络上传送语音数据的技术。
VoIP (Voice over IP) is a technology that sends packet voice data over IP networks.
该设计采用了场强抽样测量和DSP语音数字压缩技术，建立了完善的硬件实现和网络通信协议框架。
Field intensity measuring, DSP numeralization and speech compression technology have been applied into the system design. Hardware implementation and communication protocol frame were established.
本文介绍了在数字语音网络会议系统中采用的专用网络拓扑结构、内嵌实时操作系统、嵌入式协议栈、标准WDM硬件驱动的设计思想。
This paper introduced the ideals of a special network structure , embedded real-time operation system, embedded protocol stack, and standard WDM hardware driver design.
避免了使用传统TCP协议进行语音通信实时性差的缺点，减小了网络延时，改善了语音传输质量。
This avoids the disadvantage for real-time when audio-data is transmitted based on TCP, minishes the delay of network, improves the quality of audio-data transmission.
避免了使用传统TCP协议进行语音通信实时性差的缺点，减小了网络延时，改善了语音传输质量。
This avoids the disadvantage for real-time when audio-data is transmitted based on TCP, minishes the delay of network, improves the quality of audio-data transmission.
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