Galaxy Nexus -- known issue.
I tried a new SIM card, did not fix this (last week).
Verizon sent me a new phone via fed-ex - same problem.
1 - 3 minutes into a call, the person on the other end hears click, click, click, then silence, but I continue to hear them just find.
I called tech support today, and it happened while on the call to tech support
They can't deny it now... They acknowledge it is a known issue.
They offered to get me on the phone with a Samsung rep since they said it was a Samsung issue... After waiting on hold, the Verizon rep came back and said the Samsung rep said the Galaxy Nexus is Google Phone and that Google will have to fix the issue (hear 'not a hardware issue).
I have yet to hear from Google, but the timing of the whole CDMA signature press release seems to make me think ... related issue?
Anyway... I have not heard Google admitting to the issue, and I am worried about the whole mess. I'd take a Nokia 900 on AT&T just so I could make a call... Really.