Natural Recorder, currently only for Nokia series 6, does exactly what I need it to. Eric, who has been helping me with my cell phone research, discovered this.

He also mentioned that he’d found fora noting that the audio-recording apps I cited yesterday do not offer the internal-recording feature I need, but can only record ambient sound; thus to record a call, one would have to use the Treo as a speaker phone. I swear I had seen specific feature description for PAR that enabled internal recording, but I have run out of time to do homework.

UPDATE: DO NOT purchase and install Natural Recorder without noting this: “Automatic recording of all phone calls … No user intervention required.” While it (to date) operates successfully in easily, transparently recording calls, the default mode of the program is to record every single call placed or received. Among other things, that means that unless you’ve scrolled though your contacts and identified them as ‘do not record’ contacts, you will find yourself with recordings of all of them on your memory card. Not to mention the telemarketers and new contacts who just happen to call.

Oh, this is so maddening. So far, by working the stick on the phone, I saw no global toggle to invert this setting. I’m really hoping there is one. I also found no mention of starting and stopping recording within a call – recording starts at the top of the call, and runs as long as you’ve configured the app to run, in minutes.

Part of what is so frustrating about this is that the transparency of the UI leads one to expect that the app will work the way you want it and at the same time retain significant user-customizability.