someone call for Smith. twice in this week

someone asked for steve and then said they  had the wrong number

Phone calls on Jan. 21 (no one spoke) and on Jan. 25 trying to sell duct cleaning

someone calls from this number about 1x per week, they never leave a message. it's quite annoying - so I tried calling it back (several times day or night), no one answers it, ring / click / busy.... "go away"

no messages was left.