Low Cost VOIP System Incorporation with Raspberry Pi
Nikitha Reddy Nalla, S Sakthivel, Ravi Shankar · 2022 6th International Conference on Intelligent Computing and Control Systems (ICICCS) · 2022
The communication requirements of institutions and corporations have developed over time, and they are using IP based technology moving away from traditional means of voice communication, which are often more expensive. The primary objective of this transition was to increase telephony's effectiveness, adaptability, and cost-effectiveness. Voice Over Internet Protocol (VoIP) is a rising innovation based on contemporary business needs. It's connectivity with the Internet and software implementation have offered this service incredible flexibility when it comes to developing voice communication systems. The Voice Over Internet Protocol (VOIP) is a combination of IP networks, voice apps, and voice calls that has revolutionized the technical or design structure of the phone by replacing the conventional service interaction. VoIP has been widely utilized in business networks as voice and data network convergence provides interoperable services at lower costs. IP-PBX is the PBX telephone switching system that manages internal call switching in an organization . It also allows extensions and external phone lines to communicate with each other.Users using IP phones must register with an asterisk, which is a PBX software implementation that connects users. This system is built around the Raspberry Pi, which is at the core of the concept. To make and receive phone calls, the Session Initiation Protocol (SIP) protocol is employed. Because the Raspberry Pi is programmed at the Linux kernel level, it can work as a server. The system develops codes using free telephony software like as Asterisk and FreePBX, resulting in a cost-effective system.