Skype relies on P2P technology to enable direct IP-based connections between Skype users. One result of using such technology is that the public IP of the user is disclosed during Skype-to-Skype calls.
This article will teach you how to hide your IP address when making calls to people who aren't in your contact list.
Open Skype, and click Tools > Options. Go to Advanced settings > Connections, and tick the Allow direct connections to your contacts only checkbox:
Click Apply to save your new settings.
Open the Skype app. Tap Menu > Settings, and scroll to the Privacy section. Toggle the Direct connections only switch ON:
After updating this setting, Skype will only allow direct connections with people who are in your contact list. Connections with non-contact users will be made through Microsoft servers.
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