Conducting phone calls
Calls can be made while you are wearing the headphones. You can hear the caller’s voice through the headphones, and your voice is picked up by the built-in microphone in the headphones. The paired Bluetooth compatible mobile phone is controlled using the Call button.
![Ope Telephone AHGC20](fig/Ope Telephone AHGC20_IEDGILdsposlyz.png)
When the headphones are connected using the audio cable, the Bluetooth function is automatically turned off and calls cannot be made using the headphones.