How do I check my messages when I'm away from

Regarding your model number TRU9485-3 5.8 Uniden phone, you can easily access your answering machine remotely by following these simple instructions from the official Uniden web site. Click the PDF user's manual link below.
http://www.uniden.com/pdf/TRU9485-3om.pdf
Once there, look on the left-hand side of the page and scroll down to where it says, "Remotely Operating Your Answering Machine" and click.
I hope this helps you!
- CBR2009

is this your home landline?
call your house #, depending on your setup if you have a voicemail, or answering machine(member those;))
sometimes you press the # key, and it will ask you for a password/pin.