Canada cable/DSL equipment market

Hi all, I need to find information on the market size, growth, trend, and sales projections for the cable and DSL equipment market in Canada. To be clear, this refers to the market where manufacturers of cable and DSL modems sell to Telcos. Government sources were not very helpful. Many manufacturers are privately held so I can’t peek into their annual report to get a sense of the industry. Anyone has any suggestions? Really appreciate the help!