Aastra 6757i CT (57i CT) Phone Features Guide
Features for the Aastra 6757i CT base unit and 57i CT cordless handset are detailed in the guide below. Aastra 6757i CT Phone Features Guide (PDF)
- Aastra Manual Configuration Guide (Non-Aptela Purchased & Pre-Owned)
Instructions to set up non-Aptela purchased or pre-owned Aastra 53i, 55i, 57i and 57iCT phones are detailed in the guide below. NOTE: The account administrator will need to provide FTP information to users who may setup the phone themselves. Aastra Manual Configuration Guide (PDF)
- Aastra 6757i CT Configuration for Multiple Extensions
Instructions to set up your Aastra 6757i CT phone for multiple extensions are detailed in the guide below. NOTE: The account administrator will need to provide the SIP Password to users who may configure the phone themselves. Aastra 6757i CT Multi-line Configuration Guide (PDF) About Multi-Lin ...
- Aastra 57i CT cordless handset pairing
The 57i CT cordless handset must be paired to the base unit to work. Instructions to pair the handset are detailed in the guide below. If you need to unpair the handset, the guide will also walk you through that. Aastra 57i CT Pairing/Unpairing Guide (PDF) Notes: A total of four handsets ca ...
- Troubleshooting Aastra phone configuration
Most phone installation or registration issues arise when the phone's MAC Address is not assigned to an extension or when the phone settings are not correct; however, your local network configuration may also cause problems. If your pre-installed Aastra phone was reset or if you are experiencin ...
- Setting up your headset for the Aastra 6757i CT base unit
In order for your headset to work with your Aastra 6757i CT base unit, you must program your phone for hands free calling. Make sure the headset is properly connected to the headset jack on the back of the base unit Press "Options" button on base unit Select Option 2 for "Preferences" Select O ...
- Aastra 6757i CT Phone Errors: No Service
"No Service" Message If a “No Service” message appears on the phone’s LCD screen, the phone is not registered. Before troubleshooting, wait 10 minutes to see if the message goes away. This message may appear periodically, but it should not last longer than 10 minutes. This i ...
- How do I replace the battery on my Aastra 57i CT cordless handset?
If your battery dies while you are still within the 1 year manufacturer warranty, contact Aastra directly for a replacement. If your warranty has passed, you would need to purchase a battery from a retailer. Aptela’s distributor does not sell or replace Aastra batteries. If you would rathe ...
- How to Switch Between Handsets while on an Active Call (Aastra 6757i CT)
If you are on an active call, you can do the following to switch the caller from the Aastra 6757i base station or 57i handset to the other device. If caller is on base station and you want to switch to handset: Press Hold button on base station Then on your handset, look for the 'Line' indicato ...
- Can I configure my cordless handset to a line on my Aastra 6757i CT base station?
The Aastra cordless handset can only be configured to the base station. It cannot be configured for a unique line (or extension). If you configure your base station for multiple extensions, the cordless handset will ring for the incoming calls on any of the configured lines.
- Why can't I program 9 lines on my Aastra 6757i CT phone?
Though the Aastra 6757i CT phone base can support up to 9 lines, the Aptela system will only support the four lines programmed on the hard line keys.
