I'm talking the backend boxes not the set top ones that we have as customers.
Every number of years different network components become manufacture discontinued for support and have to be replaced. End cost to MTS all depends on what the Canadian dollar is doing as most if not all components are prices in UD $.
Even the ones that are not replaced may have an increase in the contracted support fees for the hardware or software running the routers etc.
I just wanted to add that any price increases that take place are advised 2 months in advance on your monthly bill. Usually at the top of Page 2 under the News heading. Since this price increase took effect January 1st 2017, the price increase was advised on all November bills. As well, on our MTS.ca website under Service Bulletins any upcoming changes are advised. The link to this page is provided here: https://www3.mts.ca/mts/support/service+bulletins
Hope this information is helpful.