Aastra 6757i CT (57i CT) Phone Troubleshooting
Questions about settings & troubleshooting on your Aastra 6757i CT (57i CT) phone
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...
(No rating)
2010.11.16
Views: 8155
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...
(No rating)
2010.09.21
Views: 1727
Why does my Aastra 6757i CT display a "No Service" Message?
One of two reasons will cause your Aastra 6757i CT phone to display a "No Service" message:1) There is too much traffic on your...
(No rating)
2009.11.13
Views: 5238
Why can't I pair my cordless handset to my phone base?
If you recently unpaired a phone using the cordless handset and are attempting to pair it again (either to a new base or the one it was...
(No rating)
2009.11.02
Views: 3435
Why won't my headset work with my Aastra 6757i CT phone?
In order for your headset to work with your Aastra 6757i CT phone, you must program your phone for hands free calling. Before programming your...
2009.11.02
Views: 3818
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...
2009.10.23
Views: 3345
What do I do if I can't unpair my handset from the phone base?
If you are not given the option to unpair the handset from the base, unplug the battery from handset for at least 24 hours. Then scroll back...
(No rating)
2009.10.21
Views: 1589