Cellular coverage is available downtown in the underground stations (Rideau, Parliament and Lyon), and along the 2.5 tunnel that runs between uOttawa and Pimisi stations. The service and infrastructure is provided by Telus, who have interoperability agreements with the other major providers and their partner networks (such as Bell, Rogers, etc...) to provide those clients with service as well. WIFI is offered by Telus with service available in the downtown tunnel stations. Simply connect to the #TELUS wifi to use. There are plans to extend this service to the other above ground stations on the Confederation Line in the near future.