I have lost the manual for my phone and I can't set up the answering machine because I don't have the temporary password. Do you know what it would be?

You may download a copy of the manual here. Answering machine operation begins on page 40.

What model Uniden 5.8GHz phone?

What model Uniden 5.8GHz system?

Select the model of your phone from the list beginning at
http://www.uniden.com/owners-manuals/dect-phones/scat/dectphones_mnl/

You can download the manual from the manufacturer's web site at
http://uniden.com/pdf/DECT1580-2om.pdf

what kind of machine is it? model?

Remote operation instructions begin on page 62 of this manual.

you have to press the answer machine button (3rd on the left with an R on it) then the display should say 'msg play' so press the down button scroll to OGM REC. record ya message after the tone then press ok when done. then scroll down the menus again (press the answer machine button (3rd on the left with an R on it) then the display should say 'msg play' so press the down button) scroll to TAM ON, press ok and thats the answering machine.

Is this an actual answering machine, or does the phone system have voicemail?

I need to know how to get meesages when i call the phone from mobile