How do I change time date and time on my used GE Dect 6.0 phone I just purchased

Unsure which phone you have.

Free manual online:

https://www.manualslib.com/manual/412348/AtAndt-Cl82309-AtAndt-Dect-6-0.html?page=17

AT CL82309 DECT 6 0 User Manual Set Date time

To delete message, see page 26 of the manual.
To set the date/time, see page 9.

If you need a manual, you may view/download a copy at Vtech CS6729 DECT 6 0 Expandable Cordless Phone System with Digital...

I would take the battery out then put it back in. It should reset. But you will need to put all the other things like time/date etc...

What model AT&T DECT 6.0 phone?

I had the same problem but couldn't figure it out either ..... UNTIL, I changed the date and time (which was very old, actually Sept/2007) to the current date, year, time, am/pm, etc.

After I changed the date, time, year, etc. my phone went back to its normal default of 3 or 4 rings & then the answering message plays.

Hope this helps!

Please download it here :
www.home-electronics.net/ge/pc/IB/28213EE2_IB.pdf
www.generalmanual.com/Telephones/GE-28118FE1-Ultra-Slim-DECT-6-0-Phone.htm

You know how MANY Dect 6.0 cordless phones G.E. makes?

Here is a link to GE, look for the model number on the bottom of the phone.
And search for it, or look at the pictures and click on the picture of your phone... then after that near the middle of the page slightly to the left there is a Bloue Box - Product Instruction Book - English... press this to get your manual.

http://www.home-electronics.net/ge/pc/showsearchresults.asp?pageStyle=H&resultCnt=10&keyword=dect+6

Good Luck!

I have a GE 6.0 cordless & it did work great but, Now for what ever reason it crackels & the static is so bad i can not understand those who call me . I love this phone so please help me. ?

Just got this phone. It is indeed day/month/year. European style. NOT what we want for a phone in the states. Really annoyed with the fact there is not an option. Might be returning it.