I am away from Toronto for substantial periods, so email is the most effective medium.
When I am in Toronto, the office I share is room 285 at University College, and the telephone number there is 416-978-8155. University College is located at the heart of the downtown-Toronto campus of the University of Toronto. My office is up half a floor from ground level at the southwest corner of the building, near the circular appendage to the building now called Croft Chapter House. The Department of Political Science is located on the 3rd floor of Sidney Smith Hall, 100 St. George Street, and the main office telephone number there is 416-978-3343.