What Are VoIP Socket Ports?
Computer-based Voice-Over-Internet Protocol (VoIP) routes phone calls over the Internet, which reduces costs for both the provider and the user. VoIP does this through the connection of socket ports.
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Definition
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A socket port refers to two things. The socket is the IP address that a computer uses to access a VoIP service, and the port is what the computer opens and connects through to access that socket. Up to 65,535 ports are available, but they are not all used by VoIP
Typical Socket Ports for VoIP
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There are some typical ports used by VoIP services. Session Initiation Protocol-based VoIP uses the 5060 port, while H.323-based services use ports 1719 and 1720 to access VoIP.
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Problems
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If you use a firewall to protect your computer from hackers, you may need to open the ports listed above to use VoIP services on your PC. You can typically do this from your firewall's General Settings or Preferences menu.
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