What are the advantages and requirements of wan using voice?

Using Voice over WAN (Wide Area Network) offers several advantages, including cost savings through reduced long-distance call charges and improved communication efficiency with real-time interactions. It also allows for scalability, enabling organizations to easily add or remove users as needed. The primary requirements for implementing VoIP over WAN include a reliable internet connection with sufficient bandwidth, quality of service (QoS) configurations to prioritize voice traffic, and compatible hardware or software for VoIP services. Ensuring robust security measures is also essential to protect against potential threats.