Aastra 55I IP PHONE - RELEASE 2.0 User Manual page 87

6. Press Done to save changes and exit.
7. If you do not wish to save changes, press Cancel to return to the previous
screen.
NOTE: By default, the volume for the headset microphone is set to medium.
To Make and Receive Calls Using a Headset
IP Phone UI
1. Ensure that you have selected a headset audio mode by accessing the
Options list (under option Headset Settings).
2. Plug the headset into the jack.
3.Press the
Depending on the audio mode selected from the Options menu, a dial
tone or an incoming call will be received on either the headset or the
handsfree speakerphone.
N
4.Press the
key to obtain a dial tone or to answer an incoming call.
to end the call.
Model 55i IP Phone User Guide 81