Lost my direction booklet. How do I erase

1. Slide the HOLD?POWER ON/OFF switch in the direction of "POWER ON/OFF" to turn on the IC recorder, or towards the center to release the IC recorder from the HOLD status. The stop mode window appears.
2. Select the file you want to erase when the IC recorder is in the stop or playback mode.
3. Erase a selected file. When the IC recorder is in the stop mode, press and hold ERASE.
   When the IC recorder is in the playback mode, press ERASE.
   
   
4. Press ERASE. "ACCESS" appears in the display window and the selected file will be erased.
   When a file is erased, the remaining files will advance so that there will be no space between files.

Hint

• To cancel erasing, press (stop) in step 3.
• To erase a part of a file, divide the file into two files first, and then proceed with steps 3 through 4.

Hi, You can download the manual for your phone here: http://edocs.mitel.com/UG/EN/2ICP_4025_UG_R2_EN.pdf On page 22 there's the way to record voicemail message:
Messaging - Callback To leave a Callback Message on a telephone when you hear busy or ringback tone: ! Press MESSAGE. To respond to a Message Waiting condition on your telephone: 1. Lift the handset. 2. Press MESSAGE. A call is placed to the message sender (voice mail system or extension user) that left the oldest message. To view information about the messages before responding: 1. Press MESSAGE. 2. Do one of the following. " To call the message sender, press the Call softkey (if available). " To delete the message, press the Erase Msg softkey. " To view the next message, press MESSAGE
I hope this was usefull
Pcsimples

Hello Press the FOLDER button to choose a folder
Press and hold ERASE button for 3 seconds or longer.
The ERASE indicator will flashes
Press the ERASE button again.
Done blinks for two seconds and the deletion will be complete
Note AN erased file cannot be restored.
During this process don’t remove batteries. Otherwise data may be damage.
The recorder should be formatted using only by using the internal FORMAT function found in the recorder's Menu. Formatting using the computer may corrupt system files needed to run the recorder, so computer formatting is not recommended

Erasing all files in a
folder
You can delete all files in a specific
folder by the following steps:
1. Turn on the unit.
2. Select a folder (A/B/C/D).
3. In Stop mode, press FORWARD
continuously until “ALL” appears on
the display.
4. Press ERASE and “DELETE” will
blink on the display.
5. Press and hold ERASE for about 3
seconds, all files in the selected folder
will be erased completely (or press
STOP to cancel erasing all files).

Unfortunately on this particular recorder there is not a lock feature that will protect your file against accidently being erased. This model does not have that feature as a menu function.

Select the file, then press erase and follow the display. If you hold down erase, you should get an erase all option. Also you can select Format in the menu.

sorry it sounds like the folder may be lost forever.once you pressed the record button, the recorder knew it as a new recording in that folder.look at it like a answering machine going out message. if you made a mistake,and you wanted to record a new message,the old message would be erased.if your folder was on a cassette recorder, you would have only erased those few seconds.
sorry
wg

Look in the RECORD folder for your recorded .WAV files. These files may or may not work with Windows Media Player, which can generally be used to burn music files to a CD in the CD audio (CDDA) format or .WMA music data format. Conversion of the wave files into other formats, such as .MP3 is especially difficult since many programs don't recognize the headerless format that Sansa uses for its recorded .WAV files. I had to use JetAudio to convert them.

You could try contacting Danby directly: [email protected] Cheers, S.