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Asked: 2026-06-08T00:18:36+00:00

I want to know how two computers with VoIP software can be connected to

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I want to know how two computers with VoIP software can be connected to each other and exchange voice data without having an external IP address.

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  1. Editorial Team

    You would need an static IP address only if you were trying to connect the two to each other directly. The VOIP server acts as a go-between.

    Example:

    • Person 1 and Person 2 are trying to get into a VOIP call
    • They both register with the VOIP server with their IDs.
    • When one ID places a call to another, the there is a connection between the two, with the server in between, but not directly with each other.

    SIP (Session Initiation Protocol) is usually the Protocol used for VOIP. There is a SIP registrar, which is the server. You can establish your own SIP server using Asterisk’s free solution. SIP actually makes it possible to directly connect peers. However, this isnt possible over the internet where people dont have static IPS

    Software like skype use a similar workflow. The skype client tries to connect the peers. When it cant, it uses something like UDP Hole Punching.

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