I have no dial tone nor can I receive incoming calls

Question edited fir clarity

Ideas here. You can also Google
make model manual
See if it is a an outgoing call barring feature.

https://www.google.com/search?q=I-DECT+Phone.+It+receives+incoming+calls+but+won%27t+dial+outgoing

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How many handsets do you have on this system? Just the one for the base unit?

open line if have more than one phone plugged into a jack unplug one at a time and check dial tone if no change have phone company check incoming line

Is it dial lock?

Double check your wire from the wall to your base set.

Is it possible you have something 'off hook' and the phone company has turned the dial tone off? Look in the front of your telephone book for the procedure to check the service to the "De-Mark"

I hope this helps you

a

Not too sure about the no dial tone issue, but you can check to see if the DND is turned on...
Press the Blue Superkey and scroll thru till you see DND (Do Not Disturb) is on and shut it off.

constant dial tone and cant dial out or receive calls

If you have tried the phone base unit in the same jack that works correctly with your answering machine and you still cannot break dial tone, then you have a defective base unit. Jer

Refer to your manual. It may be under RX(recieve settings). Go disable FAX/Tel SW and make sure it is fax mode only