基于SIP的远程呼叫中心的设计方案

呼叫中心是指通过互动式语音应答和人工坐席通信为客户提供协助和咨询的交互式增值服务的系统。传统的呼叫中心更多的依赖于硬件实现,且不易扩展。此文提出了一种基于SIP协议的呼叫中心,与传统的基于CTI技术的呼叫中心相比,有更好的扩展性和灵活性;同时此系统可以通过Internet网络传输远程呼叫大大节省了通话费用。     

基于OpenVXI的IVR系统的设计与实现

交互式语音应答(IVR)系统是呼叫中心的重要部分,控制整个业务流程。OpenVXI是开源的VoiceXML解释器。文章设计了一个基于OpenVXI的语音应答系统,并给出了核心部分的具体实现。     

基于SIP协议的语音邮件服务的设计与实现

语音邮件是VoIP系统的一类标志性服务,在SIP系统实现中,语音邮件是一类非常重要和实用的功能,SIP协议本身并不定义这类服务的设计和实现规范,而是期望通过对业务特性的特别处理,实现相关用力持征,本文利用SIP分布式结构设计了语音同件服务的系统架构,引入了VMCP协议来解决虚构UA与语音邮件服务器之间的传输控制问题,并实现了一种SIP系统的语音邮件服务。     

新型交互式语音应答系统关键技术的研究与实现

交互式语音应答系统是代替人工座席和客户进行自动交互的系统,讲述了如何增强传统交互式语音应答系统的功能,并给出了实现时所需要的一些关键技术。     

开放的语音通信模型研究及实现

对于开放式的语音通信模型,H．323和SIP都是基于IP的语音通信的体系结构的标准。通过对SIP协议的相关技术的研究,提出了在Web的客户端浏览器上用Java来实现SIP协议的客户端用户代理部分。     

基于SIP协议的呼叫中心设计

呼叫中心是通过交互式的呼叫导航和人工坐席通信为客户提供协助和咨询的交互式增值服务系统。提出了一种使用SIP协议的呼叫中心系统。与传统的基于CTI技术的呼叫中心系统相比,本系统采用SIP协议作为信令协议,可以提供较好的扩展性和灵活性。传统呼叫中心的几种典型服务,例如画屏转移、强插也已经被提供并进行了详细描述。     

基于SIP协议的呼叫中心设计

呼叫中心是通过交互式的呼叫导航和人工坐席通信为客户提供协助和咨询的交互式增值服务系统。提出了一种使用SIP协议的呼叫中心系统。与传统的基于CTI技术的呼叫中心系统相比，本系统采用SIP协议作为信令协议，可以提供较好的扩展性和灵活性。传统呼叫中心的几种典型服务，例如画屏转移、强插也已经被提供并进行了详细描述。     

SIP协议语音网关的设计与实现

讨论了基于会话初始协议（SIP），通过IP网传输语音的网关的设计。首先，对IP电话技术及SIP协议在网关中的应用作了介绍；其次，详细阐述了语音网关的设计与实现，包括系统方案设计，硬件设计，软件设计；最后，讨论了SIP协议应用于该系统中的呼叫流程。该设计为企业拨打IP电话提供了解决方案。     

SIP协议控制多媒体会话的研究与应用

SIP是NGN(Next Generation Network)呼叫控制中的一个重要协议，其应用研究正方兴未艾。该文基于NGN关键设备——媒体服务器的开发实践，对其中运用SIP控制媒体服务器提供多媒体业务进行了说明和讨论，特别以交互语音应答(Interactive Voice Response, IVR)为例，给出了一种用SIP及其扩展控制多媒体会话的具体实现方案。     

基于SIP协议的嵌入式VoIP语音终端实现和协议分析

实现了一款嵌入式语音通信终端。该终端硬件系统采用飞凌嵌入式开发板OK6410,其核心板采用以ARM11为内核的处理器S3C6410。该终端软件部分基于嵌入式WINCE操作系统,实现了基于SIP协议的LINPHONE代码的移植和分析。首先,分析了所涉及语音通信终端的硬件和软件架构;其次,重点对LINPHONE的工作流程和SIP协议进行了分析;最后,通过测试表明该终端系统具有良好的话音通信质量。     

可灵活扩展的IVR软件设计思想

IVR是呼叫中心的重要组成部分，其开发难度虽然不大，灵活度却不强，造成重复开发，增加成本，分析了IVR的一些特点，找出其规律，介绍了一种可灵活扩展的IVR软件设计思想。     

基于Windows NT的小型交互式语音应答系统的设计策略

本文讨论了在基于低端服务器上的语音应答系统中,如何平滑处理多个呼叫并发以优化系统响应的线程结构设计及调度策略。     

基于 Agent的语音交互界面模型与应用

Agent为解决人机交互界面的智能性提供一条新途径;语音技术为人机真正对话提供可行的技术手段。本文用Agent这一抽象概念指导人机语音交互智能用户界面的研究,提出一种基于Agent的语音交互界面理想模型。该模型包括语音识别/合成引擎、学习部件、知识库、执行部件,文章试图探讨支持语音交互功能的知识库描述、定义与学习。基于该模型的“语音秘书系统”成功地实现了说话者独立的语音交互,系统的可靠运行说明该模型是有效的、合理的。     

Intelligent Web-based education system for adaptive learning

This paper depicts a set of integrated tools to build an intelligent Web-based education system. Our purpose is to create a Web learning environment that can be tailored to the Learners’ needs. The Web learning environment is composed of Authoring Tool, Evaluation System, Interactive Voice System and a Virtual Laboratory for programming in Java. All tools use Web Services and have the characteristics of powerful adaptability for the management, authoring, delivery and monitoring of learning content. Part of the decision-making inside the intelligent Web-based education system was made with a multi-agent system.     

A spoken query system for the agricultural commodity prices and weather information access in Kannada language

In this paper, a spoken query system is demonstrated which can be used to access the latest agricultural commodity prices and weather information in Kannada language using mobile phone. The spoken query system consists of Automatic Speech Recognition (ASR) models, Interactive Voice Response System (IVRS) call flow, Agricultural Marketing Network (AGMARKNET) and India Meteorological Department (IMD) databases. The ASR models are developed by using the Kaldi speech recognition toolkit. The task specific speech data is collected from the different dialect regions of Karnataka (a state in India speaks Kannada language) to develop ASR models. The web crawler is used to get the commodity price and weather information from AGMARKNET and IMD websites. The postgresql database management system is used to manage the crawled data. The 80 and 20% of validated speech data is used for system training and testing respectively. The accuracy and Word Error Rate (WER) of ASR models are highlighted and end to end spoken query system is developed for Kannada language.     

基于IVR的字母转化输入算法

在交互式语音响应(IVR)中,所有的按键只有12个,包括10个数字键和“*”“#”键,这12个键虽然可以满足大部分需要,但是对某些特殊情况,比如:要输入车牌号,而车牌号中有英文字母,如何让通过这12个按键产生的字符串与车牌号中的字母对应,提出了一种基于IVR的字母转化输入算法LTIA(Letter Transformation Input Arithmetic),很好地解决了这个问题,并结合到实际的应用中加以实现。     

Practical authentication scheme for SIP

The Session Initiation Protocol (SIP) is commonly used to establish Voice over IP (VoIP) calls. However, the original authentication scheme for SIP-based service typically uses HTTP Digest authentication protocol, which is s not providing security at an acceptable level. In this paper, we propose a secure and practical password-only authenticated key agreement scheme for SIP using elliptic curve cryptography(ECC). Our scheme is remarkable efficient and quite simple to use. And yet we can provide the rigorous proof of the security for it. Therefore, the end result is more suited to be a candidate for SIP authentication scheme. In addition, we also suggest an extended scheme capable of providing anonymity, privacy, and location privacy to protect the user’s personal information and his real identity.     

Public attitudes toward voice-based electronic messaging technologies in the United States: A national survey of opinions about voice response units and telephone answering machines

. We surveyed 912 Americans in the Fall of 1993 about their attitudes toward voice response units (VRUs, also known as voice-based electronic messaging or Interactive Voice Response Units, IVRs) and telephone answering machines or devices (TAMs or TADs). We present data from a national survey to provide an empirical understanding of these novel and significant forms of technologically mediated interpersonal communications. Our results suggest that attitudes toward electronic voice response systems are less closely linked to demographic variables than are attitudes toward answering machines. We uncovered no evidence that the 'information rich' are more positively inclined to electronic voice response systems than the 'information poor'. We also found that attitudes toward the electronic technologies varied strongly by age. The most significant predictor of liking for electronic voice response systems was the quality of one's most recent experience with this technology. We conclude by considering some insights about the formation of attitudes toward these electronic technologies and argue that voice-based services could provide an important access modality to a wide range of electronically-delivered phone services.