I got so many calls from this number, it's sick... They leave messages but they don't speak.. weird! Should I call back? Who are they?

I gat this number yesterday asking if they were talking the person who was living to an address..(he gave me a full address the street...) in st-jerome(laval)??!! How weird and before angnig up the guy asked me with a frensh from france accent: Do you know where I can reach this person? Today fiew friends have said they gat similar phone calls , maybe different numbers! Ill find out!! Please be carefull...R they hackers?? does anybody gat phone calls like that??

Got a call today.From the comments above, it's obviously a Telemarketer.

Hier 04-03-09 et aujourd'hui 05-03-09 ce numéro s'est affiché sur mon téléphone mais ne connaissant personne à ce numéro je n'ai pas répondu, aucun message laissé et sur Canada 411 aucun nom n'est enregistré à ce numéro.  Bizarre !!

(514) 523-4933 - SONDAGE-SURVEYCombien de fois on doit dire NON PAS INTERESSER-How many times must we say NOT INTERRESTEDcalled today at 12.11-.-.-.-.-.-.-.-. à midi et 11  on mange  iciCALL ME BACK AND LEAVE ME  your  phone # ...rappel-moi et laisse-moi TON # de télé ....comme çà  JE pourrais te téléphonner aux heures de repas........SO I CAN PHONE YOU BACK WHEN  YOU ARE EATING ........