I feel like it's an invasion of my private space.
If I am expecting a call / call back, then I will answer, but otherwise I let it go to voicemail. I also keep my personal mobile on silent.
People sometimes then say thinks like 'Blimey you're hard to get hold of' - but it's not like they are contacting me about anything urgent. It's just that I didn't text them back within 5 seconds.
I prefer to check my personal phone periodically at a time which suits me and deal with messages / missed calls then. Possibly IABU, as I might miss an emergency. But I make a point of giving all emergency contacts DH's details as the primary number as he and his phone are one answers straight away.
(I do of course answer the phone when at work!)
PS as I am at work I might not be able to check back until later as I now actually have to go and do some work.