device is not needed) for $19.95 might be what you're looking for. An inexpensive and convenient way to
record phone calls
is with VoiParrot and you can simply download the trial copy and see if it meets your requirements (The trial program works exactly like the purchased version except each recording is limited to 1 minute).
Some of VoiParrot’s features are:
Does not need additional hardware to record VOIP phone systems
Record time is limited only by disk space
You can record up 20 calls at once if your computer’s performance is sufficient