Same happened to me. First time it was Peter Brown the next call was Peter Black and when I asked for Peter White they hung up. We should call bell or who your carrier is and ask why are they allowing these calls to happen it's been reported its a scam.
Called this morning and left a voicemail with a computer generated voice reading a scrip threatening in part to: place a lien on all assets; a bill collector will be making an appearance if we don't settle our debt with the CRA etc etc...