Dex COM- Manual page 8

Incoming calls – See illustration 5
5.1 Answer call: Press push button.
5.2 Speak into microphone while device is hanging around
your neck.
5.3 End call: Press push button.
Note: Answering and ending calls is also possible on the mobile
phone. Note that, on some mobile phones, you may need to
select the COM-DEX from a list of devices. Otherwise the sound
will be transmitted through the phone's speakers.
Outgoing calls – See illustration 5
5.4 Dial from phone.
Note: You can also use the device to stream sound from any
sound source to your hearing aids.
5