文件名称：Design and Implementation Voip Service On Open IMS and Asterisk Servers
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更新时间：2017-07-04 15:43:56
OpenImsCore Asterisk
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