The TalkSocket is seen as an audio accessory connected via Bluetooth. When you make a phone call or accept a phone call, you must ensure you have selected your iPhone or Speaker (iOS) and NOT the TalkSocket. The TalkSocket does not have a speaker so you won’t be able to hear any audio output if the TalkSocket is selected. Select Audio on your incoming/outgoing call and choose iPhone or Speaker.
For Android phones, go to Bluetooth settings on your device and click the “gear icon” next to the paired TalkSocket device. Ensure you slide the bar to the left, turning off TalkSocket as an audio output for calls.