Not totally sure I'm posting in the right place, but since I didn't have the problem with my nexus 5 here goes. I have the nexus 6 setup to use my google voice for voicemail. When a call comes in, and I decline it, I immediately get an incoming hangouts call. If I decline, or don't answer that one, then it finally rolls over to voicemail. How do I set things up, so that it skips the hangouts call and just goes straight to voicemail?