Here a quick first report on CSIPSimple and Total recall S2. Have given both a one time use, and impression is good, pretty well engineered, both integrate into the phone system.
Total recall can be configured to pop up a window after a call is finished, asking if you want to save the call or disgard it. The sound file is written as a 3gp file, and quality is excellent. I only have an issue with the volume setting, pretty low.
CSIPSimple: When entering a number on the standard keypad and pressing dial a window pops up, giving you the choice between VOIP or "mobile". I tried both. For VOIP you have in settings a long list of servers you can connect too, but lacking any information, I simply selected "local host", whatever that means. Sound quality was OK, but will have to try again in the busy hours, and see how much noise I scoop up.