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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