Aastra Telecom 6739I User Manual

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Model 6739i IP Phone Installation Guide 19
Troubleshooting Solutions
Troubleshooting Solutions
Why is the light not coming on with a new Voice Mail Message?
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.
Why is my handset not working?
Check to ensure that the handset cord is fully connected to both the phone 
and handset. See the section 
on 
 for information. 
Why is my speakerphone not working?
If you press 
 
and the speaker light flashes and you do not hear dial 
tone, the Set Audio option has been used to set up the phone for headset 
use; press 
 a second time. If the light goes out, the phone is set up to 
be used only with a headset or handset. If the light stays on steady and you 
hear dial tone, you can alternate between the speakerphone and the 
headset by pressing 
. See the section, 
instructions on how to change the Set Audio feature.
Why is my display blank?
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 a PoE inline power injector, to provide power over 
Ethernet locally to your phone. See the section 
 for details.
Can I turn the backlight for the screen on and off?
Yes. You can use the IP phone UI to turn ON and OFF the backlight for the 
screen.
1. Press the 
 key.
2. Select Display>Backlight.
3. Press the Change key to turn the backlight on and off.
4. Press Save to save the change.
Why does the telephone wobble?
Make sure the cords are routed properly through the back of the phone, as 
indicated in the section, 
 on 
. Check that the leg stands have been properly 
snapped into place. Since the legs can be oriented in two different ways 
and in two different positions to offer four different phone viewing angles, 
check that both legs are oriented in the same direction and in the same 
position on either side of the phone.
Speaker/
Speaker/
Headset
Headset
Speaker/
Speaker/
Headset
Headset
Speaker/
Speaker/
Headset
Headset
Options
Options