Great question! Although I don’t know if there is a specific function for this on your particular phone, the best way to save the message is the simplest. Turn up the sound as high as you can and record it onto a digital recorder (like you would use for a lecture), a cassette recorder or your cell phone if you have a voice recorder on it. Then save it as an MP3 on to your computer for safe keeping. You can also Google your vtech model number to see if you can find an owner’s manual. They might have a way to save a recording in there. Probably not, but it’s worth a shot.
2. If the trashcan icon is not available, from the top right-hand corner, click on the three-dotted menu, then select “Edit.”

There you have it – voicemail messages for three of the situations you’ll find yourself in most of the time.
3. Use a male-to-male headphone cable (that is, one with connectors at both ends) to connect your phone to your computer’s “Line In” jack. That cable shouldn’t run you more than a few bucks. Note that some computers, particularly Macs, only have one audio port that serves as both input and output.