SIP ports, short for Session Initiation Protocol ports, are virtual network endpoints that facilitate multimedia communication sessions, such as voice, video, and messaging, over the Internet. These ports are assigned to specific SIP-based applications or services, enabling them to establish and manage communication channels with other devices or platforms.
SIP ports play a crucial role in VoIP (Voice over Internet Protocol) systems, allowing users to make and receive phone calls over the internet. They also support instant messaging, video conferencing, and other real-time communication applications. By utilizing SIP ports, these applications can traverse firewalls and NAT (Network Address Translation) devices, ensuring seamless communication across different networks and devices.