+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Yes you can. The link you have posted yourself answers all your questions. Make sure to ask for a visitor record at POE with work permit exemption noted on arrival.
Alright. Thanks Andy.

So at the canadian airport I just show my offer letter from prof/university and then just verbally request them to give a visitor record?