The change, which comes into effect on Feb. 1, 2013, affects only Telus customers who use the company’s land-line internet service, which is available in Alberta and British Columbia.

Users of the Telus High-Speed service will see their upload and download cap reduced to 100 gigabytes per month from the current 150 gigabytes. Users of its highest-level service — Telus High Speed Turbo 25 — will see their download caps halved, to 250 gB from the current 500 gB.