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  • Design and Implementation Voip Service On Open IMS and Asterisk Servers

    DESIGN AND IMPLEMENTATION VOIP SERVICE ON OPEN IMS AND ASTERISK SERVERS INTERCONNECTED THROUGH ENUM SERVER Rendy Munadi 1) , Effan Najwaini 2) , Asep Mulyana 3) , R.Rumani.M 4) Telkom Institute of Technology , Bandung 40257 West Java-INDONESIA Email : rnd@ittelkom.ac.id. 1) effan_86@yahoo.com 2) , asm@ittelkom.ac.id 3) , rrm@ittelkom.ac.id 4) ABSTRACT Asterisk and Open IMS use SIP signal protocol to enable both of them can be connected. To facilitate both relationships, Enum server- that is able to translate the numbering address such as PSTN (E.164) to URI address (Uniform Resource Identifier)- can be used. In this research, we interconnect Open IMS and Asterisk server Enum server. We then analyze the server performance and PDD (Post Dial Delay) values resulted by the system. As the result of the experiment, we found that, for a call from Open IMS user to analog Asterisk telephone (FXS) with a arrival call each servers is 30 call/sec, the maximum PDD value is 493.656 ms. Open IMS is able to serve maximum 30 call/s with computer processor 1.55 GHz, while the Asterisk with computer processor 3.0 GHz, may serve up to 55 call/sec. Enum on server with 1.15 GHz computer processor have the capability of serving maximum of 8156 queries/sec. KEYWORDS Voice Over Internet Protocol (VoIP), Open IMS, Asterisk and ENUM server, Post Dial Delay (PDD). 1. INTRODUCTION Interconnection and convergence among PSTN, PLMN and data network are expected to develop very powerful system; this system will provide PSTN services, mobility, PLMN features and internet-based application. This convergence will support multimedia service with adequate bandwidth and high mobility. The IMS technology is resulted from combination of multimedia, mobile and IP concepts in order to complete the NGN technology [3,4]. .IMS acts as a standard platform for multimedia service through IP/SIP protocol with which it is possible for the operator to use one’s platform for many multimedia service. IMS is a part of arhitecture standard of Next Generation Network (NGN). Services for fixed, mobile and wireless networks can be operated through IMS platform with IP based service and supported by SIP protocol [1,5]. .Originally, IMS is developed for telephone connection in mobile network, but together with TISPAN release-7, it is also has the possibility for fixed network, resulting term Fixed-Mobile Convergence (FMC) which is a key industries trend in 2005 [5]. Software based on NGN architecture has been developed today. OpenIMS is constitute of the software based on IMS architecture; it has the capability for various multimedia features.On the other hand, Asterisk is a software based on softswitch architecture which is capable to connect packet network and circuit network. With those both software, we can build a simple NGN technology with lower cost investment. To demonstrate the above cases, we design and implement a VoIP service, using the above software, with the aid of Enum server which the function is to mapping the number among servers. 2. BAS

    2014-06-14
    9
  • Integrating IMS and Asterisk 对接IMS 与Asterisk指南

    Executive Summary Objective To create an open source test bed for validating th e end to end VOIP calls originating or terminating at 3G/4G mobile network for use cases like PSTN-IMS an d IMS-PSTN call flows. • Conformance to the 3GPP IMS standards using open s ource elements which can provide advantages like Standard conformance Negligible cost Potential for wide usage across different 3G/4G te chnologies Approach © Nokia Siemens Networks • Selection of the open source softwares to emulate IMS and PSTN gateway functionalities. • Integration of the above components into the test bed which enables the testing of Mobile-Mobile (M-M), Mobile to Land (M-L) and Land to Mobile (L-M ) VOIP calls. Results Availability of cost effective test solution for va lidation of end to end VOIP calls for M-L, L-M and M-M scenarios

    2014-06-14
    19
  • java 核心技术 pdf

    觉得真实的java核心技术 还算清晰 这个包含了卷I 和卷II

    2012-08-02
    10
  • Manning C plus plus CLI in Action Apr 2007.pdf C++/CLI in action

    PART 1 THE C++/CLI LANGUAGE ........................................ 1 1 ■ Introduction to C++/CLI 3 2 ■ Getting into the CLI: properties, delegates and arrays 46 3 ■ More C++/CLI: stack semantics, function overriding, and generic programming 86 PART 2 MIXING MANAGED AND NATIVE CODE .................. 131 4 ■ Introduction to mixed-mode programming 133 5 ■ Interoping with native libraries from managed applications 179 PART 3 USING MANAGED FRAMEWORKS FROM NATIVE APPLICATIONS .......................................... 229 6 ■ Interoping Windows Forms with MFC 231 7 ■ Using C++/CLI to target Windows Presentation

    2011-07-22
    10
  • CLIPS编程语言——专家系统原理与编程 第四版 附书光盘

    该资源为专家系统原理与编程第四版附书光盘 里面有CLIPS编程语言和源码 由于只能上传小于20M的资源 便删除了Unix环境下的内容 有需要的可以联系QQ568072887

    2011-04-16
    28
  • 现代CAD技术 童秉枢

    这个资料找了很久才找到,没有pdf格式的 是djvu格式

    2011-03-16
    17
  • 基于知识的软件智能化技术

    这是一个djvu格式的文件,需要专门的浏览器。 基于知识的软件智能化技术正在发展为人工智能应用研究的主流方向。一方面,KB(Knowledge Based)系统多年来的实践已经证明,使软件具有基于知识的问题求解能力或广义的知识处理能力,可以作为实现软件智能化的有效途径;另一方面,软件智能化扎根于主流计算环境的要求也促使知识处理技术摆脱其早期研究陷入的自我封闭的困境,与其它计算技术紧密结合,融汇于信息技术的发展主流中。

    2011-03-16
    9
  • 医院管理系统 软件工程作业 POWERDESIGER

    这是一分课程设计作业 其中用软件工程的思路分析了医院管理系统 每一个环节都详细 到位。

    2010-05-06
    9
  • CAD各工具、视图、界面设置及打印等知识全解

    这是一分好资料 看了它你对CAD的理解将更加深入透彻 多多下载吧 谢谢合作

    2010-05-06
    4
  • 用 Objectarx2008实现 CAD2008 双击编辑

    本程序是基于ObjectARX2008+AutoCAD2008+Visual Studio2008环境编写的 双击编辑程序 其中参照了明经通道 师兄的例子 如果不能运行 请联系QQ568072887 这是我第一次上传程序 也是第一次觉得自己学有所获 因为是第一次 所以把资源分定为4分 算是一种自我激励 以后 我将继续上传一些自认为 还可以的程序 而且资源分都不超过2分

    2010-04-19
    6
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