No, they are covered under the ITMP Framework. The reason I mentioned the Wireless Code is that MTS instituted the changes prior to its coming into effect, which means that they did not trigger the requirement to obtain customer consent for changes to key contract terms and conditions. (There were some questions earlier as to when this change came into effect - it appears to have been instituted before both the CRTC Wireless Code and Manitoba's new consumer protection law.)
The CRTC's ITMP framework applies equally to wired and wireless carriers.
Update: MTS responded to my query shortly after I posted this thread - they've acknowledged that they're throttling to 512Kbps down, 128Kbps up after 15GB of use on unlimited wireless plans, and have committed to update the website with this information.
See: »
community.mts.ca/mts/top ··· 15115951Still, I think it would be a good idea to begin gathering information on other providers' transparency practices viz. ITMPs. This is work I will be conducting over the coming months, and thought it would be a good idea to seek input from the community!