I've had a puzzling issue for the past week or so.
At times, my Pro will ring normally (3-4 times) before sending a caller to Voicemail. Lately, 1 out of 3 times it seems to only ring once and dumps the caller to voicemail.
At first I thought it the caller, but when I call them back they all state it rang several times before hitting VM. Yesterday, I watched it happen twice with the phone sitting on my desk. One ring and straight to VM without any interaction from me.

I'm guessing that some process is soaking the CPU and blocking the ring except for the last one. Anyone else had a similar experience?