基于软交换的扩展业务的设计与实现
摘要
软交换作为下一代网络发展的重要技术,不但实现了传统电信网络与IP网络的融合,更重要的是实现了业务的融合,具有极大的优越性。
本文在分析和研究软交换及其通信协议的基础上,设计并实现了基于软交换系统的WEB800业务,并结合软交换传输网络的QoS问题进行了研究。本文将整个WEB800系统按功能划分为SIP用户终端、代理服务器系统、呼叫中心和WEB800后台管理系统。SIP用户终端包含了SIP用户代理,其用于发起呼叫、建立连接,设计中调用了oSIP等协议栈;在代理服务器系统设计中则采用了TEKELECT6000软交换系统作为网络实体,它包含了注册服务器、代理服务器和重定向服务器,用于鉴权和路由转发,是软交换系统核心控制部分;呼叫中心用于为呼叫请求根据指定规则分配企业座席,设计中采用了TEKELEC T6000软交换系统提供的Informal Call Center功能模块;另外还设计了WEB800的后台管理系统用于实现黑白名单设置、用户信息管理等功能。本文中,基于区分服务(DiffServ)可伸缩性强、低消耗的特点,选取其为软交换传输网络的QoS策略机制,从而保证WEB800业务的服务质量。
本文最后在软交换平台上进行了WEB800业务的功能及性能测试,测试结果充分体现了基于软交换的WEB800系统设计的正确性,且有较好的性能表现。
Softswitch Network, as the development of NGN (Next Generation Network), which is fully of advantags, does not only achieve the goal of connection between telecommunication network and IP network, but what is more important is the integration of business.
Through analysis and research of the Softswitch platform which stages 800 business and its communication protocol and researching the QoS problem of the Softswitch transmission network, The project designed and implemented the WEB800 business based on Softswitch Network with the traditional calling procedure of 800 business. The whole WEB800 network system is divided by its function into User Terminal, Proxy Server System and Call Center. User Terminal comprising SIP User Agent play a key role in this project with its function as initiating calling and building connection, its code based on oSIP and other protocol stacks. Proxy Server system adopts TEKELEC T6000 Softswitch System as its network entity which includes Registrar Servers, Proxy Servers and Redirected Servers to be used in authentication and routing transmission, serving as the crucial control unit of the system. Call Center is used to allocate agent for the call request followed by the specified rules, Informal Call Center provided by the TEKELEC T6000 Softswitch system serves as the function module. In addition, the WEB800 Background Management System is working to achieve the tasks of the setting of black and white list and modifying the customer information, etc. In this thesis, in order to guarantee the QoS of the WEB800 business, DiffServ is applied to the core network since its characteristics of flexibility and low cost.
At last, the function testing and qualification testing were carried out for the WEB800 business. The testing results fully manifested accuracy of the system and performed fairly well.
本文在分析和研究软交换及其通信协议的基础上,设计并实现了基于软交换系统的WEB800业务,并结合软交换传输网络的QoS问题进行了研究。本文将整个WEB800系统按功能划分为SIP用户终端、代理服务器系统、呼叫中心和WEB800后台管理系统。SIP用户终端包含了SIP用户代理,其用于发起呼叫、建立连接,设计中调用了oSIP等协议栈;在代理服务器系统设计中则采用了TEKELECT6000软交换系统作为网络实体,它包含了注册服务器、代理服务器和重定向服务器,用于鉴权和路由转发,是软交换系统核心控制部分;呼叫中心用于为呼叫请求根据指定规则分配企业座席,设计中采用了TEKELEC T6000软交换系统提供的Informal Call Center功能模块;另外还设计了WEB800的后台管理系统用于实现黑白名单设置、用户信息管理等功能。本文中,基于区分服务(DiffServ)可伸缩性强、低消耗的特点,选取其为软交换传输网络的QoS策略机制,从而保证WEB800业务的服务质量。
本文最后在软交换平台上进行了WEB800业务的功能及性能测试,测试结果充分体现了基于软交换的WEB800系统设计的正确性,且有较好的性能表现。
Softswitch Network, as the development of NGN (Next Generation Network), which is fully of advantags, does not only achieve the goal of connection between telecommunication network and IP network, but what is more important is the integration of business.
Through analysis and research of the Softswitch platform which stages 800 business and its communication protocol and researching the QoS problem of the Softswitch transmission network, The project designed and implemented the WEB800 business based on Softswitch Network with the traditional calling procedure of 800 business. The whole WEB800 network system is divided by its function into User Terminal, Proxy Server System and Call Center. User Terminal comprising SIP User Agent play a key role in this project with its function as initiating calling and building connection, its code based on oSIP and other protocol stacks. Proxy Server system adopts TEKELEC T6000 Softswitch System as its network entity which includes Registrar Servers, Proxy Servers and Redirected Servers to be used in authentication and routing transmission, serving as the crucial control unit of the system. Call Center is used to allocate agent for the call request followed by the specified rules, Informal Call Center provided by the TEKELEC T6000 Softswitch system serves as the function module. In addition, the WEB800 Background Management System is working to achieve the tasks of the setting of black and white list and modifying the customer information, etc. In this thesis, in order to guarantee the QoS of the WEB800 business, DiffServ is applied to the core network since its characteristics of flexibility and low cost.
At last, the function testing and qualification testing were carried out for the WEB800 business. The testing results fully manifested accuracy of the system and performed fairly well.
引文
[1]郎为民,靳焰,王逢东等.软交换业务体系研究.数据通信.2005,(06):20-23
[2]林华,李旭东.软交换技术与业务发展.信息技术与信息化.2005,05:27-29
[3]于桂红.国内800号智能网业务概述.现代通信.1999,07:22-23
[4]洪晓静.NGN与PSTN业务分析比较.江苏广播电视大学学报.2006,06(17):54-56
[5]陈建亚,余浩.软交换与下一代网络.北京:北京邮电大学出版社.2003,02
[6]孟旭东,糜正琨.软交换网络体系结构和SIP协议.2002,07:12-16
[7]Franklin D.Ohrtman,JR.李晓东译.软交换技术.北京:电子工业出版社.2003,11
[8]J.Rosenberg,H.Schulzrinne,G.Camarillo,etc.SIP:Session Initiation Protocol.RFC 3261.June 2002
[9]林美玉.SIP协议在软交换中应用的研究.电信网技术.2006,04(04):13-17
[10]张健,李恒文,魏绍亮.SIP协议应用研究.通信与信息技术.2006,05(220):19—21
[11]Gonzalo Camarillo.白建军译.SIP揭密.北京:人民邮电出版社.2003,06
[12]M.Handley,V.Jacobson.SDP:Session Description Protocol.RFC 2327.April 1998
[13]H.Schulzrinne,S.Casner,R.Frederick,etc.RTP:A Transport Protocol for Real-Time Applications.RFC 3550.July 2003
[14]C.Huitema.Real Time Control Protocol(RTCP)attribute in Session Description Protocol(SDP).RFC 3605.October 2003
[15]H.Schulzrinne,A.Rao,R.Lanphier.Real Time Streaming Protocol(RTSP).RFC 2326.April 1998
[16]王磊.下一代网络中QoS的研究.山西电子技术.2006,06:42-44
[17]王懿,郑雄,张顺颐等.关于下一代网络VOIP业务的QoS体系结构研究.中国数据通信.2003,11:59-63
[18]康贝,李勇.实时语音数据在IP网络中传输的QoS保障.航空计算技术.2003,33(1):106-109
[19]姚玉坤,刘合武.IntServ与DiffServ在VoIP QoS中的应用分析.计算机与数字工程.2007,04(35):55-62
[20]张连俊,李春华.基于MPLS的IP-QoS机制研究.计算机工程与设计.2006,10(20):3783-3785
[21]沈鑫剡等.多媒体传输网络与VoIP系统设计.北京:人民邮电出版社.2005,09
[22]S.Blake,D.Black,M.Carlson,etc.An Architecture for Differentiated Services.RFC2475.December 1998
[23]Y.Bemet,S.Blake,D.Grossman,ere.An Informal Management Model for Diffserv Routers.RFC3290.May 2002
[24]V.Jacobson,K.Nichols,K.Poduri.An Expedited Forwarding PHB.RFC2598.June 1999
[25]Z.Zhang,et al.Xrmual time reference system:A unifying scheduling framework for scalable support of guaranteed services.IEEE Journal on Selected Areas in Communication,Special Issue on Internet QoS,to Appear 2000
[26]A.Parekh,R.Gallaner.A Generalized Processor Sharinn Approach to Plow Control in Integrated Service Network-The Multiple Node Cased.IEEE/ACM,Transactions on Networkinn,1994,2(2):137-150
[27]董民.基于类的排队(CBQ)技术及其仿真分析.军事通信技术.2002,06(23):55-60
[28]杨自芬,高仲合.互联网中基于RED算法的拥塞控制研究.计算机信息与技术.2006,8:57-59
[29]J.Heinanen,F.Baker,W.Weiss,ere.Assured Forwarding PHB Group.RFC2597.June 1999
[30]张智江,张云勇,刘韵洁.SIP协议及其应用.北京:电子工业出版社. 2005,01
[31]周海华,边恩炯等.下一代网络SIP原理与应用.北京:机械工业出版社.2006,06
[32]TEKELEC公司.TEKELEC T6000系统描述文档.2001,07
[33]TEKELEC公司.TEKELEC T6000服务管理文档.2001,07
[34]李爱振.CTI技术与呼叫中心.北京:电子工业出版社.2002,02
[35]孙卫琴等.Tomcat与Java Web开发技术详解.北京:电子工业出版社.2006,04
[36]MySQL主页.http://www.mysql.com
[37]Appfuse主页.http:Happfuse.org/
[38]Matt Raible.使用AppFuse的七个理由.http://www.ibm.com/developerworks/cn/java/j-appfuse/index.html.2006,08
[39]Erik Hatcher,Steve Loughran.刘永丹译.使用Ant进行Java开发.北京:电子工业出版社.2005,09
[40]孙鑫.Java Web开发详解.北京:电子工业出版社,2007,01
[41]D-ITG主页.http://www.grid.unilla.it/soffware/ITG/
[2]林华,李旭东.软交换技术与业务发展.信息技术与信息化.2005,05:27-29
[3]于桂红.国内800号智能网业务概述.现代通信.1999,07:22-23
[4]洪晓静.NGN与PSTN业务分析比较.江苏广播电视大学学报.2006,06(17):54-56
[5]陈建亚,余浩.软交换与下一代网络.北京:北京邮电大学出版社.2003,02
[6]孟旭东,糜正琨.软交换网络体系结构和SIP协议.2002,07:12-16
[7]Franklin D.Ohrtman,JR.李晓东译.软交换技术.北京:电子工业出版社.2003,11
[8]J.Rosenberg,H.Schulzrinne,G.Camarillo,etc.SIP:Session Initiation Protocol.RFC 3261.June 2002
[9]林美玉.SIP协议在软交换中应用的研究.电信网技术.2006,04(04):13-17
[10]张健,李恒文,魏绍亮.SIP协议应用研究.通信与信息技术.2006,05(220):19—21
[11]Gonzalo Camarillo.白建军译.SIP揭密.北京:人民邮电出版社.2003,06
[12]M.Handley,V.Jacobson.SDP:Session Description Protocol.RFC 2327.April 1998
[13]H.Schulzrinne,S.Casner,R.Frederick,etc.RTP:A Transport Protocol for Real-Time Applications.RFC 3550.July 2003
[14]C.Huitema.Real Time Control Protocol(RTCP)attribute in Session Description Protocol(SDP).RFC 3605.October 2003
[15]H.Schulzrinne,A.Rao,R.Lanphier.Real Time Streaming Protocol(RTSP).RFC 2326.April 1998
[16]王磊.下一代网络中QoS的研究.山西电子技术.2006,06:42-44
[17]王懿,郑雄,张顺颐等.关于下一代网络VOIP业务的QoS体系结构研究.中国数据通信.2003,11:59-63
[18]康贝,李勇.实时语音数据在IP网络中传输的QoS保障.航空计算技术.2003,33(1):106-109
[19]姚玉坤,刘合武.IntServ与DiffServ在VoIP QoS中的应用分析.计算机与数字工程.2007,04(35):55-62
[20]张连俊,李春华.基于MPLS的IP-QoS机制研究.计算机工程与设计.2006,10(20):3783-3785
[21]沈鑫剡等.多媒体传输网络与VoIP系统设计.北京:人民邮电出版社.2005,09
[22]S.Blake,D.Black,M.Carlson,etc.An Architecture for Differentiated Services.RFC2475.December 1998
[23]Y.Bemet,S.Blake,D.Grossman,ere.An Informal Management Model for Diffserv Routers.RFC3290.May 2002
[24]V.Jacobson,K.Nichols,K.Poduri.An Expedited Forwarding PHB.RFC2598.June 1999
[25]Z.Zhang,et al.Xrmual time reference system:A unifying scheduling framework for scalable support of guaranteed services.IEEE Journal on Selected Areas in Communication,Special Issue on Internet QoS,to Appear 2000
[26]A.Parekh,R.Gallaner.A Generalized Processor Sharinn Approach to Plow Control in Integrated Service Network-The Multiple Node Cased.IEEE/ACM,Transactions on Networkinn,1994,2(2):137-150
[27]董民.基于类的排队(CBQ)技术及其仿真分析.军事通信技术.2002,06(23):55-60
[28]杨自芬,高仲合.互联网中基于RED算法的拥塞控制研究.计算机信息与技术.2006,8:57-59
[29]J.Heinanen,F.Baker,W.Weiss,ere.Assured Forwarding PHB Group.RFC2597.June 1999
[30]张智江,张云勇,刘韵洁.SIP协议及其应用.北京:电子工业出版社. 2005,01
[31]周海华,边恩炯等.下一代网络SIP原理与应用.北京:机械工业出版社.2006,06
[32]TEKELEC公司.TEKELEC T6000系统描述文档.2001,07
[33]TEKELEC公司.TEKELEC T6000服务管理文档.2001,07
[34]李爱振.CTI技术与呼叫中心.北京:电子工业出版社.2002,02
[35]孙卫琴等.Tomcat与Java Web开发技术详解.北京:电子工业出版社.2006,04
[36]MySQL主页.http://www.mysql.com
[37]Appfuse主页.http:Happfuse.org/
[38]Matt Raible.使用AppFuse的七个理由.http://www.ibm.com/developerworks/cn/java/j-appfuse/index.html.2006,08
[39]Erik Hatcher,Steve Loughran.刘永丹译.使用Ant进行Java开发.北京:电子工业出版社.2005,09
[40]孙鑫.Java Web开发详解.北京:电子工业出版社,2007,01
[41]D-ITG主页.http://www.grid.unilla.it/soffware/ITG/