Networking

Port > (VOIP) Voice over Internet Protocol Ports

Posted on by Support Tips

VoIP (Voice over Internet Protocol) is a technology that enables voice and multimedia communication over the internet. Various protocols are used for VoIP, and they often utilize specific ports for communication. Here are some commonly used VoIP ports and their associated VoIP services:

  1. Port 5060: SIP (Session Initiation Protocol) – SIP is a standard protocol for initiating, maintaining, modifying, and terminating real-time sessions involving video, voice, messaging, and other communications applications.
  2. Port 5061: SIP Secure – This is the secure version of SIP, often used for encrypted communication.
  3. Port 1720: H.323 – H.323 is an ITU-T recommendation for audio and video communication. Port 1720 is commonly used for H.323 call setup.
  4. Port 10000-20000: RTP (Real-Time Protocol) – RTP and its associated RTCP (Real-Time Control Protocol) use a range of ports for streaming audio and video in VoIP calls. Typically, a range of ports is opened for each call.
  5. Port 2427: MGCP (Media Gateway Control Protocol) – MGCP is used for controlling media gateways in VoIP systems.
  6. Port 5062: SIP Alternate – Some SIP traffic may use an alternative port for communication.
  7. Port 19305: TURN (Traversal Using Relays around NAT) – TURN is used for handling real-time communication through NAT (Network Address Translation) and firewalls.
  8. Port 12345: SIP Secure Alternate – An alternative secure port for SIP traffic.
  9. Port 5065: SIP Alternate – Another alternative port sometimes used for SIP communication.
  10. Port 3478: STUN (Session Traversal Utilities for NAT) – STUN is used for managing real-time communication across NATs.
  11. Port 5066: SIP Secure Alternate – Another alternative secure port for SIP traffic.
  12. Port 8000-8001: SIP Alternate – An alternate range for SIP traffic, particularly for additional features.
  13. Port 2727: MGCP Alternate – An alternative port sometimes used for MGCP communication.
  14. Port 1998: SIP Express Router – SIP Express Router (SER) uses port 1998 for SIP traffic.
  15. Port 14000-14001: SIP Alternate – Another alternative range for SIP traffic.

These VoIP ports are essential for establishing and maintaining voice and multimedia communication over the internet. The choice of port can depend on the specific VoIP protocol, the service provider, and network configuration.


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