To develop a VOIP web application, you will need to have a strong understanding of web development principles and technologies, as well as knowledge of VOIP protocols and audio codecs. Some specific skills that you may need include:
- VOIP protocols: Understanding of SIP, RTP (Real-time Transport Protocol), and other VOIP protocols.
- Audio codecs: Familiarity with audio codecs such as G.711, G.729, and Opus.
- Server-side programming: Knowledge of server-side programming languages such as Node.js, PHP, or Python.
- Security: Understanding of web application security principles and best practices, including encryption, authentication, and authorization.