For Skype to work correctly, the following ports need to be open in your firewall:
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443/TCP
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3478-3481/UDP
-
50000-60000/UDP
For the best possible call quality experience, these ports are needed too:
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1000-10000/TCP
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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.
