Implement VoIP Based IP Telephony with Open Source Asterisk Architecture

Implement VoIP Based IP Telephony with Open Source Asterisk Architecture

Chirag K. Gohel, Kamaljit I. Lakhtaria
DOI: 10.4018/jitn.2010010101
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Asterisk is a leading open source telephony software/system, easily implemented over intranet and internet. Asterisk empowers developers and integrators to create advanced communication solutions. An Asterisk system is a low cost type of a traditional PBX system. Any phone controlled by an Asterisk system can call a VoIP or analog phone controlled or managed by a traditional telephone system or by Asterisk telephone system. In this paper, the authors focus on the deployment and testing of various Open Source Asterisk Services in an enterprise level communication system. Selected services are listed in this paper that can be used to implement a telephone system with good Quality of Services (QoS) and good Quality of Experience (QoE) from the personal user to enterprise level users.
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Review Of Literature

Asterisk Implementation strategy with aspect of small-scale implementation discussed in Alam, Bose, Rahman, and Abdullah Al-Mumin (2007) present some important theoretical and experimental result regarding setting up a VoIP (voice over Internet protocol) server with the well known open source software - Asterisk, this research also enlightening implementation of GnuGk PBX and Asterisk server setup configuration as well. Asterisk Designing and Implementation showing as replacement of EPBX (Qadeer & Imran, 2008), in this research the design and implementation aspects of a VoIP based asterisk voice exchange, developing a fully functional voice exchange requires to set up a server based on Asterisk, connecting clients to that server with the help of soft phones and then configuring the soft phones with the server.

In (Qadeer & Imran, 2008) connection of the clients to the server with the help of IAX protocols also discussed and deployment configuration discussed. Important features of Asterisk deployed in Imran and Qadeer (2009), the services generally associated with an Asterisk based Voice Exchange i.e. conferencing, paging and voice mailing.

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