Haven't been around these parts in awhile, but news of the update brought me back. I have a question about an issue I've had since day 1, but always just kind of accepted. When I listen with headphones to podcasts, music, etc. I get weird signal noise. It's most noticeable when listening to podcasts/talk as there is lots of room to hear the noise on the line. It's like low little hums, "chirps," not totally sure how to describe it. Just not a clean, clear silence when there should be silence. I've used different headphones, definitely not anything there. I'm wondering if this is a known issue, a problem with some handsets, fixable, etc.?