Notification light flashing rapidly during 2G phone call - Samsung Galaxy Nexus

Hey everyone,
I have noticed that on my nexus the notification light flashes rapidly during a 2G phone call. I Only noticed it because I was sat in the dark.
It only happens when the phone is placed to your ear and the screen goes off.
Here's the flashing in action: http://youtu.be/o8gaPfA8FCY
You can see it start flashing at 0:15 when the call connects.
- The phone had no notifications at the time
- I was connected to an Edge network (O2 UK)
- I have 4.0.1 build ITL41F
Because i can replicate it over and over on a 2G call, I'm guessing it's a similar to the volume bug before that was patched the other week.
Not a massive issue but would suggest there's something not quite right with 2G on this phone.
Really interested to hear your thoughts.
Thanks
Rob

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