Aastra Telecom 6757I User Manual

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Model 6757i IP Phone User Guide

 

Ensure that power is being provided to your phone. If your network does not provide inline 

power over Ethernet, you can obtain an additional accessory, the Aastra PoE (Power over 

Ethernet) inline power supply, to provide power over Ethernet locally to your phone. See the 

section “Connecting to the Network and to Power” in the Aastra 6757i Installation Guide for 

details. 

If you press the 

 button and the speaker light flashes and you do not hear dial tone through 

the speaker phone, the Set Audio option in the phone’s Options list has been set up for headset 

use. Press 

 a second time and if the light goes out, the phone has been set up to be used 

only with a headset or handset. If the light stays on steady and you hear dial tone, the phone has 

been set up so that you can alternate between the speakerphone and the headset by pressing 

. See the section 

 on 

 for instructions on how to change the Set Audio 

option.

Check for any loose connections and that the phone has been installed properly. For installation 

instructions, please refer to the “Installation and Setup” section in the Aastra 6757i Installation 

Guide provided with your phone.

Check the ring volume on your phone. It may be turned down or turned off. To adjust the ringer 

volume setting, press the volume button when the phone is on-hook and idle. For more 

information, refer to the “Adjusting Volume section” in the

Aastra 6757i Installation Guide provided with your phone.

Your phone system or service provider must provide “Visual” Message Waiting service for this 

function to work. Check with your System Administrator for more information.

Check to ensure that the handset cord is fully connected to both the phone and handset. See the 

section “Connecting a Handset or Headset” in the Aastra 6757i Installation Guide for 

information.