AASTRA 57i 설치 가이드

Model 57i IP Phone Installation Guide 23

Using a Headset with your Telephone

The 57i accepts headsets through the modular jack on the back of the 
phone. Contact your telephone equipment retailer or distributor to 
purchase a compatible headset. A non-amplified headset is required. 
Customers should read and observe all safety recommendations 
contained in headset operating guides when using any headset.

Note: For best headset performance, Aastra recommends non-amplified headset 

equipped with modular connector.

Making and Receiving Calls using a Headset

1. Ensure that you have selected a headset audio mode by accessing the 

Options menu. See the section 

 on 

 for detailed information.

2. Plug the headset into jack.
3. Press the 

 key to obtain dial tone or answer an incoming call. 

Depending on the audio mode selected from the Options menu, dial 

tone or an incoming call will be received on either the headset or the 

handsfree speakerphone.

4. Press the 

N

key to end the call.