统一通讯IP-PBX调度系统的设计与实现
摘要
随着全球经济技术的发展和Internet的普及,企业的通信需求已经趋向多元化。传统PBX(用户级交换机)己经难以适应现代企业的发展模式和增长需要,而IP-PBX符合下一代网络融合的趋势,可以满足现代企业的通信要求,它正逐步取代传统PBX,成为当今最重要的企业级通信平台解决方案。
指挥调度通信系统是企业安全生产管理中的重要手段之一。随着NGN(下一代网络)网络的成熟,实现企业生产中的语音、视频和数据等多业务在统一IP承载网中传输、控制和管理是未来调度发展的趋势。本文为了实现基于VoIP的语音调度功能,提高语音调度通信的可靠性、灵活性和业务扩展性,研究并开发了IP-PBX调度系统。
首先研究了VoIP(Voice over Internet protocol)和IP-PBX的应用开发相关的知识和技术;然后从结构设计、音频数据流、与服务器的通信机制和软件层次结构等方面对调度系统进行了整体设计;接着根据IP-PBX及调度系统的特点设计了调度系统的功能模块。最后基于Windows Socket,采用分层模块化的软件开发结构,实现对调度系统软件的编程开发,设计和实现了呼叫模块、定时器模块和语音通信模块等公共模块。在此基础上开发并实现了调度系统的核心调度功能。
本文开发的统一通讯IP-PBX调度系统,可以对企业电话系统进行实时监控和有效的管理,完成对分机和外线状态信息的获取、对分机进行强行接通、来电转移、通话转接、通话强拆、通话强插以及通话录音和监听等功能。
With the popularization of Internet and the development of global economy and technology, Enterprise’s communication requirement tends to be diversified. It has been already hard for traditional PBX to meet the development mode and growth need of modern enterprises and IP PBX accords with the converging trend of NGN and can meet the communication requirements of modern enterprise. IP PBX is replacing traditional PBX and becoming the most important enterprise communication solution.
The command and scheduling communication system is one of important means during coal mine safety production and management. With the maturity of NGN network, it is a future development tendency of dispatching and scheduling to achieve the voice, video, data and other multi-service can be transmitted, controlled and managed by the unified IP load bearing network in the enterprise. For realizing the voice scheduling function based on VoIP and improving the reliability, flexibility and service extension of voice scheduling communication, one dispatch system is studied and developed based on IP PBX.
First, this paper provides the overview of VoIP and IP-PBX, then describes the overall design of the console software, and then designing function module of dispatch system according to feature of IP PBX and dispatching system. Finally, in view of Windows Socket, by the hierarchical module soft operation structure, the programming of dispatch system is achieved, and the call module, timer module, voice communication module and other public modules are designed and realized core scheduling function are developed and achieved on the basis.
Unified Communications IP-PBX dispatch system is successfully developed in this paper, and it can be used to manage and control the calls, obtain the phones’status information, and implement call recording and monitoring functions.
指挥调度通信系统是企业安全生产管理中的重要手段之一。随着NGN(下一代网络)网络的成熟,实现企业生产中的语音、视频和数据等多业务在统一IP承载网中传输、控制和管理是未来调度发展的趋势。本文为了实现基于VoIP的语音调度功能,提高语音调度通信的可靠性、灵活性和业务扩展性,研究并开发了IP-PBX调度系统。
首先研究了VoIP(Voice over Internet protocol)和IP-PBX的应用开发相关的知识和技术;然后从结构设计、音频数据流、与服务器的通信机制和软件层次结构等方面对调度系统进行了整体设计;接着根据IP-PBX及调度系统的特点设计了调度系统的功能模块。最后基于Windows Socket,采用分层模块化的软件开发结构,实现对调度系统软件的编程开发,设计和实现了呼叫模块、定时器模块和语音通信模块等公共模块。在此基础上开发并实现了调度系统的核心调度功能。
本文开发的统一通讯IP-PBX调度系统,可以对企业电话系统进行实时监控和有效的管理,完成对分机和外线状态信息的获取、对分机进行强行接通、来电转移、通话转接、通话强拆、通话强插以及通话录音和监听等功能。
With the popularization of Internet and the development of global economy and technology, Enterprise’s communication requirement tends to be diversified. It has been already hard for traditional PBX to meet the development mode and growth need of modern enterprises and IP PBX accords with the converging trend of NGN and can meet the communication requirements of modern enterprise. IP PBX is replacing traditional PBX and becoming the most important enterprise communication solution.
The command and scheduling communication system is one of important means during coal mine safety production and management. With the maturity of NGN network, it is a future development tendency of dispatching and scheduling to achieve the voice, video, data and other multi-service can be transmitted, controlled and managed by the unified IP load bearing network in the enterprise. For realizing the voice scheduling function based on VoIP and improving the reliability, flexibility and service extension of voice scheduling communication, one dispatch system is studied and developed based on IP PBX.
First, this paper provides the overview of VoIP and IP-PBX, then describes the overall design of the console software, and then designing function module of dispatch system according to feature of IP PBX and dispatching system. Finally, in view of Windows Socket, by the hierarchical module soft operation structure, the programming of dispatch system is achieved, and the call module, timer module, voice communication module and other public modules are designed and realized core scheduling function are developed and achieved on the basis.
Unified Communications IP-PBX dispatch system is successfully developed in this paper, and it can be used to manage and control the calls, obtain the phones’status information, and implement call recording and monitoring functions.
引文
[1]糜正馄. IP网络电话技术[M],北京:人民邮电出版社, 2003
[2]陈理.新一代网络电话系统IP-PBX[J],山东通信技术. 2005, 25(2):23-24
[3]赵慧玲,叶华等.以软交换为核心的下一代网络技术[M],北京:人民邮电出版社, 2002
[4]唐熊燕,庞韶敏.软交换网络—技术与应用实践[M],北京:电子工业出版社, 2005
[5]宋铁成,张华等.一种基于IP技术的PBX系统[J],东南大学学报(自然科学版), 2000,3(6):18-22
[6]于瑞莆,华钠.基于CNUGK的IPPBX系统研究[J],现代电子技术闭. 2005, l:15-17
[7]赵强,张成文,左荣国等.基于软交换的NGN技术与应用开发实例[M],北京:人民邮电出版社, 2009
[8]许航天. SIP呼叫服务器的设计与实现[D].南京:南京邮电学院, 2004
[9] RFC2327. SDP: Session Description protocol
[10] RFC3550. RTP: Transport Protocol for Real-Time Application
[11]张黎明.下一代企业级统一通信平台的研究与实现[D].广州:中山大学, 2005
[12]屈立成. IP语音管理平台的研究与开发[D].西安:长安大学, 2005
[13]许航天. SIP呼叫服务器的设计与实现[D].南京:南京邮电学院, 2004
[14]钟刚.一个基于SIP协议的IP电话系统终端的研究[D].武汉:华中科技大学, 2005
[15]郭芸.基于软交换构建下一代网络多业务平台[D].武汉:华中科技大学, 2005
[16]高伟.基于SIP协议的IP电话研究与实现[D].西安:西南交通大学, 2007
[17]朗锐,罗发根. Visual C++网络通信程序开发指南[M].北京:机械工业出版社, 2004
[18]陈坚,陈伟等. Visual C++网络高级编程[M].北京:人民邮电出版社, 2001
[19]孙海民. windows sockets网络开发—基于Visual C++实现[M].北京:人民邮电出版社, 2008
[20]李展.企业网语音通信的软交换研究[D].广州:华南理工大学. 2003
[21]马全. GSM-R系统中语音组呼和广播呼叫业务的设计及实现[D],南京:南京航空航天大学, 2006
[22]王德明.基于SIP协议的语音软终端的研究与实现[D],成都:电子科技大学, 2007
[23]董毅.基于CTI技术呼叫调度软件设计与实现[D],长沙:国防科学技术大学, 2006
[24]黄海玉.基于SIP的视频监控系统客户端的设计与实现[D].沈阳:中国科学院研究生院, 2007.
[25]于波. VoIP技术原理及展望[J],电子原器件应用, 2006, (6): 42-44.
[26]冯华亮. IP语音及其终端技术研究[D].成都:电子科技大学, 2003.
[27] Mahy, R. and D. Petrie, The Session Initiation Protocol (SIP) "Join" Header[S], RFC3911, October 2004.
[28] Schulzrinne, H., Casner, S., Frederick, R. and V.Jacobson. "RTP: A Transport Protocol for Real-Time Applications"[S], RFC 3550, July 2003
[29] Schulzrinne, H., Casner, S., Frederick, R. and V. Jacobson,"RTP: A Transport Protocol for Real-Time Applications"[S], RFC1889, January 1996.
[30] A. Niemi, Ed, "Session Initiation Protocol (SIP) Extension for Event State Publication"[S], RFC 3903, October 2004.
[31]薛绍伟,耿卫东,缪永伟.基于SIP的企业指挥调度系统的设计与实现[J],计算机工程, 2007, (11): 233-238.
[32]邓斌.基于软交换技术的VoIP分析与研究[D].长沙:中南大学, 2002
[33]刘星沙,彭浩,于文涛.基于VoIP的企业通信网实现及关键技术[J],计算机与信息技术, 2006,(7): 58-61.
[34]郝中伟,郝中娜.基于WEB的呼叫中心[J],信息技术, 2002,(6): 61-64.
[35] Insight Research. IP PBX and IP Centrex Market Research Report 2003-2008 Research Report. http://www.insight-corp.com/reports/pbxcentrex.asp.
[2]陈理.新一代网络电话系统IP-PBX[J],山东通信技术. 2005, 25(2):23-24
[3]赵慧玲,叶华等.以软交换为核心的下一代网络技术[M],北京:人民邮电出版社, 2002
[4]唐熊燕,庞韶敏.软交换网络—技术与应用实践[M],北京:电子工业出版社, 2005
[5]宋铁成,张华等.一种基于IP技术的PBX系统[J],东南大学学报(自然科学版), 2000,3(6):18-22
[6]于瑞莆,华钠.基于CNUGK的IPPBX系统研究[J],现代电子技术闭. 2005, l:15-17
[7]赵强,张成文,左荣国等.基于软交换的NGN技术与应用开发实例[M],北京:人民邮电出版社, 2009
[8]许航天. SIP呼叫服务器的设计与实现[D].南京:南京邮电学院, 2004
[9] RFC2327. SDP: Session Description protocol
[10] RFC3550. RTP: Transport Protocol for Real-Time Application
[11]张黎明.下一代企业级统一通信平台的研究与实现[D].广州:中山大学, 2005
[12]屈立成. IP语音管理平台的研究与开发[D].西安:长安大学, 2005
[13]许航天. SIP呼叫服务器的设计与实现[D].南京:南京邮电学院, 2004
[14]钟刚.一个基于SIP协议的IP电话系统终端的研究[D].武汉:华中科技大学, 2005
[15]郭芸.基于软交换构建下一代网络多业务平台[D].武汉:华中科技大学, 2005
[16]高伟.基于SIP协议的IP电话研究与实现[D].西安:西南交通大学, 2007
[17]朗锐,罗发根. Visual C++网络通信程序开发指南[M].北京:机械工业出版社, 2004
[18]陈坚,陈伟等. Visual C++网络高级编程[M].北京:人民邮电出版社, 2001
[19]孙海民. windows sockets网络开发—基于Visual C++实现[M].北京:人民邮电出版社, 2008
[20]李展.企业网语音通信的软交换研究[D].广州:华南理工大学. 2003
[21]马全. GSM-R系统中语音组呼和广播呼叫业务的设计及实现[D],南京:南京航空航天大学, 2006
[22]王德明.基于SIP协议的语音软终端的研究与实现[D],成都:电子科技大学, 2007
[23]董毅.基于CTI技术呼叫调度软件设计与实现[D],长沙:国防科学技术大学, 2006
[24]黄海玉.基于SIP的视频监控系统客户端的设计与实现[D].沈阳:中国科学院研究生院, 2007.
[25]于波. VoIP技术原理及展望[J],电子原器件应用, 2006, (6): 42-44.
[26]冯华亮. IP语音及其终端技术研究[D].成都:电子科技大学, 2003.
[27] Mahy, R. and D. Petrie, The Session Initiation Protocol (SIP) "Join" Header[S], RFC3911, October 2004.
[28] Schulzrinne, H., Casner, S., Frederick, R. and V.Jacobson. "RTP: A Transport Protocol for Real-Time Applications"[S], RFC 3550, July 2003
[29] Schulzrinne, H., Casner, S., Frederick, R. and V. Jacobson,"RTP: A Transport Protocol for Real-Time Applications"[S], RFC1889, January 1996.
[30] A. Niemi, Ed, "Session Initiation Protocol (SIP) Extension for Event State Publication"[S], RFC 3903, October 2004.
[31]薛绍伟,耿卫东,缪永伟.基于SIP的企业指挥调度系统的设计与实现[J],计算机工程, 2007, (11): 233-238.
[32]邓斌.基于软交换技术的VoIP分析与研究[D].长沙:中南大学, 2002
[33]刘星沙,彭浩,于文涛.基于VoIP的企业通信网实现及关键技术[J],计算机与信息技术, 2006,(7): 58-61.
[34]郝中伟,郝中娜.基于WEB的呼叫中心[J],信息技术, 2002,(6): 61-64.
[35] Insight Research. IP PBX and IP Centrex Market Research Report 2003-2008 Research Report. http://www.insight-corp.com/reports/pbxcentrex.asp.