AGPtek RP11 User Manual page 4

 In the recording setting menu, select "LINE-IN" under the "Record
from" menu and click the "PLAY" button to confirm. Then click the "REC"
button to start recording when calling by the telephone.
Recording Settings
Select "Recording Settings" on main screen with "PLAY" button to access
to its function. Select from these settings according to your need and click
the "PLAY" button to save.
1. Telephone Line
2. Phone Jack
3. Telephone Adapter
4. Audio Cable
5. MIC-in of the Voice
Recorder
3