contactbutton
nounUK /ˈkɒntæktˌbʌtən/
US /ˈkɑːntæktˌbʌtən/
A contact button is a small thing you press on a screen or phone to talk to someone.
Tap the contact button to call your mom.
OTHER MEANINGS
2. A button on a website that lets visitors send a message to the owner.
Click the contact button at the bottom of the page to email us.
3. A physical button on a device used to start communication with someone.
Press the contact button on the intercom to speak to the front desk.
4. A feature in an app that opens a list of your saved people to call or text.
The contact button shows all your friends' names.