Why does my Aastra IP Phone display the “No Service” message?
If your Aastra IP Phone displays the “No Service” message, it means the SIP settings haven't been correctly configured. While you can still use the phone, it's not registered with the Registrar. Consult your system administrator for guidance on registering your phone.
Why doesn’t my Aastra IP Phone ring?
If your Aastra IP Phone isn't ringing, the ring volume may be too low or muted. To adjust it, press the volume key when the phone is on-hook and idle.
Why can’t I get dial tone on my Aastra IP Phone?
If you're not getting a dial tone on your Aastra IP Phone, check for any loose connections and ensure the phone has been installed correctly.
Why is my handset not working on my Aastra IP Phone?
If your Aastra IP Phone handset isn't working, ensure the handset cord is fully connected to both the phone and the handset. The handset connection is marked with the handset symbol on the bottom of the phone.
Why is my display blank on my Aastra IP Phone?
If your Aastra IP Phone display is blank, ensure that power is being supplied to your phone. If your network doesn't provide inline power over Ethernet, you can use an Aastra PoE inline power supply to provide power. Refer to the Aastra Model 6757i Installation Guide, “Connecting to the Network and to Power” section for details.
What to do if my Aastra IP Phone shows 'Network Disconnected' message?
If you're experiencing a 'Network Disconnected' message on your Aastra IP Phone, verify that the cables are securely connected to both the phone and the wall jack. The phone should automatically detect the reconnection. If network settings have been altered, restarting the phone might be necessary. Contact your system or network administrator for further assistance.
Why is my speaker not working on my Aastra IP Phone?
If the speaker lamp flashes when you press the Speaker key on your Aastra IP Phone, but you don't hear a dial tone, the 'Set Audio' option in the phone's Options list might be configured for headset use. Press the Speaker key again. If the lamp turns off, the phone is set for headset or handset use only. If the lamp remains on and you hear a dial tone, you can switch between the speaker and headset by pressing the Speaker key.
Why is the lamp not coming on when I have a new Voicemail Message on my Aastra IP Phone?
For the new voicemail message lamp to work on your Aastra IP Phone, your phone system or service provider needs to offer a visual Message Waiting service. Please contact your system administrator.
General| Protocol Support | SIP |
|---|---|
| PoE | Yes |
| Display | Graphical, backlit LCD |
| Network | 10/100 Mbps Ethernet |
| Audio | Full-duplex speakerphone |
| Power | PoE or AC adapter |
| Expansion | Supports up to 3 expansion modules |
| Ethernet Ports | 2 |
| Speakerphone | Full-duplex |
| Headset Port | Yes, dedicated headset port |
| Weight | 1.2 kg |
| Dimensions | 200 x 200 x 100 mm |
| Lines | 9 lines with call appearances |
Explains the phone's startup sequence and initial display screens.
Identifies and describes the function of each physical key on the phone.
Details how to customize phone settings using the phone's interface.
Explains how to customize phone settings using the Aastra Web UI.
Steps to change the user password via the IP Phone UI.
Instructions to reset the user password via the Aastra Web UI.
How to restart the phone using IP Phone UI or Aastra Web UI.
Procedures for locking and unlocking the phone for security.
How to specify emergency numbers for quick dialing.
Explains the 4 hard line keys and their call status indicators.
Describes the 12 softkeys and configuring them for functions.
How to program and use speeddial keys for quick dialing.
How to configure and use the DND feature.
How to configure and use call park and pickup features.
How to configure and use the Call Forward feature.
Combined BLF and Transfer key functionality.
Combined Speeddial and Transfer key functionality.
Standard procedure for dialing a phone number.
How to initiate and answer intercom calls using the Icom key.
Steps to answer an incoming call using different methods.
How to place an active call on hold and retrieve it.
Explains blind and consultative call transfer methods.
Describes local and centralized conferencing methods.
How to access, add, edit, and delete directory entries.
How to access, view, and manage the list of incoming calls.
Details settings for handling incoming intercom calls.
How to configure RTP streaming for paging applications.
Troubleshooting steps for a blank phone display.
Troubleshooting steps for speakerphone issues.
Troubleshooting steps for issues with obtaining a dial tone.
Troubleshooting steps for a phone that does not ring.
Troubleshooting steps for a non-functional handset.
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