Call answered, Missed Call notification

[blksun813]

I couldn't find this on the forum and I've searched.

I upgraded using Helmi's newest kitchen, but I can't remember if I had this problem before I upgraded or not. I'm pretty sure I didn't.
Sometimes when I answer a call I will get a missed call notification. It happens right after I answer. When I look at the call log I have a missed call from whoever called, then an answered call from unknown.

I have the 1.27 radio (had the stock radio 1.03 I think..., upgraded to 1.43, then downgraded to 1.27), but it happened with all the radios I've tried. I was thinking it might have something to do with bluetooth, but I'm not sure.
Also, as far as I remember, the unknown call happens a minute after the missed call in the log.

Anyone have any ideas or similar problems?