Bought second hand i how do I change the answer phone message to mine?

Hello. I have located the owner manual for your phone and I will provide the link at the end of this response. If all you wish to do is change the outgoing message to your own, do the following:

The OGM is your announcement to the caller and may be up to 2 minute in length. If
you choose not to record your own OGM, the caller will hear a prerecorded OGM. Use
your OGM to advise the caller to begin talking after a beep is heard. For example:
“Hello, we are unable to take your call right now, please leave a message after the beep,
and we’ll return your call as soon as possible. Thank you for calling.”
Recording your OGM
1. Press .
2. The total number of (new) recorded ICM’s will now be announced.
3. Press 8 to stop playback.
4. Press 4 5.
5. Record your OGM.
6. Press 8 to stop recording.
7. Your OGM will be repeated after a few seconds. Repeat the same procedure if
you wish to change the OGM. Any old OGM will automatically be erased when
a new one is recorded.

Here is the link I promised: http://www.doro.com/global/businessunit/dorocare/support/imagesdownloads

please rate my answer. thanks. Regards, Joe