Just wanted to submit some of my experiences while calling.
I like to ask for the person by name when they pick up. Sometimes on the right side there is only a single first name with the last name and sometimes it lists both the husband & wife's names. If both names are listed and a man answers I ask for him, if a woman answers I ask to speak with the wife. If only a man's name is listed and a woman answers I ask if this is the "Jones (substitute last name) resident?". I find it's best to connect to whoever answers the phone rather than to hope the wife will retrieve the husband from another room. Also, if he is at work it's an easy out for her to just say he is not there and end the call.