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    Which ports need to be open to use Skype on desktop?

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    For Skype to work correctly, the following ports need to be open in your firewall:

    • 443/TCP
    • 3478-3481/UDP
    • 50000-60000/UDP
    For the best possible call quality experience, these ports are needed too:
    • 1000-10000/TCP
    • 50000-65000/TCP
    • 16000-26000/TCP

    Make sure your firewall or security software is configured correctly with these ports. If your firewall restricts access to these ports, check your firewall or security software settings or check with your system administrator. 

    No emergency calls with Skype
    Skype is not a replacement for your telephone and can't be used for emergency calling