Can i retrieve a deleted message from a radio shack answering machine?

What model Radio Shack 5.8GHz phone/answering machine?

You have unheard messages on the voicemail system provided by your telephone company. This system records messages when someone calls while you're already on the phone. Please contact your telephone company for instructions on accessing their voicemail system.

"LO" in the display means the backup battery is low or not installed. For instructions on remote access and other operation, you can download the manual here from Radio Shack. Thanks for using Fixya!

The remote operation instructions are on the right half of the first page of the manual at
http://www.radioshack.com/graphics/uc/rsk/Support/ProductManuals/4303829_PM_EN.pdf

try this: http://www.uniden.com/pdf/tru8885-2om.pdf

You cant, the digital messages that are not backed up are gone.

Check if message retrieval works with a landline phone. If that works, then either the tones generated by your cellph are too far off frequency, or the cell network is filtering out or compressing too much of the tones.

Well, your machine might be broken, or you haven't set the little switch on the unit to ANS. The switch is on the side of the machine where the cables come out. But here are the instructions from the manual:

Recording Outgoing Messages:

Your answering machine has a built-in outgoing message, "Hello, please leave a message after the tone." You can use this message or record your own.

1. Hold the ANNC/DAY/<<, and speak clearly into the microphone, no more than 10 inches away.

2. Release the ANNC/DAY/<< when you finish. Your answering machine beeps and automatically plays back your recorded message.

*Your outgoing message must be between one and 60 seconds.

*If you record your won message but wish to revert to the pre-recorded message, press DELETE during playback of your outgoing message.

Follow the below link for your manual,
http://support.radioshack.com/support_phones/39764.htm

The F it is displaying means current memory is full, I would reccomend playing your messages and then recording them onto a portable cassete recorder, or even play it back and record it onto your pc if you have a mic.

hope this helps
http://support.radioshack.com/support_phones/39764.htm