User guide
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36
Making and Receiving calls using a Headset
1. Ensure that you have selected a headset audio mode
by accessing the menu.
2. Plug the headset into jack.
3. Press the / key to obtain a dialtone or answer
an incoming call. Depending on the audio mode
selected from the menu, dialtone or an
incoming call will be received on either the headset
or the handsfree speakerphone.
4. Press the key to end the call.
Sayson 390/480 for Sphericall User Guide
37
Headset Operation