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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 "Connecting a Handset, Headset, or DHSG
Headset" on page 11 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, "Set Audio" on page 16 for
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 "Connecting to the
Network and to Power" on page 9 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, "Connecting a Handset, Headset, or DHSG
Headset" on page 11. 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/
HeadsetHeadset
Speaker/
Speaker/
Headset
Headset
Speaker/Speaker/
HeadsetHeadset
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