A phone tethered to a laptop Tethering or phone-as-modem (PAM) is the sharing of a mobile device's Internet connection with other connected computers. Connection of a mobile device with other devices can be done over wireless LAN (Wi-Fi), over Bluetooth or by physical connection using a cable, for example through USB. If tethering is done over WLAN, the feature may be branded as a personal hotspot
![Tethering - Wikipedia](https://cdn-ak-scissors.b.st-hatena.com/image/square/46407a10e3f3ea38eb7a14fee253df4b621e6b51/height=288;version=1;width=512/https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F0%2F08%2FPhone_tethering_on_laptop.jpg%2F1200px-Phone_tethering_on_laptop.jpg)