SIP Voice over IP (VoIP) is a technology that allows users to make and receive phone calls over the internet. It is a cost-effective alternative to traditional phone services, and it offers a number of benefits, including:
- Lower costs
- Increased flexibility
- Improved call quality
- Enhanced features
SIP VoIP is based on the Session Initiation Protocol (SIP), which is a signaling protocol that is used to establish, maintain, and terminate multimedia sessions. SIP VoIP uses a variety of codecs to encode and decode voice data, including G.711, G.729, and G.722.