Having intermittent issues where incoming callers cannot hear me, although I can hear them fine. This also seems to happen frequently if I switch over to answer another call and switch back to the original call and the original caller can no longer hear me. Anytime I start having trouble making or receiving calls I check the Obitalk portal for a firmware update and I did install the latest update there for my Obi202 but the issue has persisted even after the update. This does not seem to be a line quality issue since when I switch over to my PhonePower line it works fine. Also if I answer incoming calls on my cell I have no issues so it doesn't seem to be solely a Google Voice issue. Any ideas?