Gordon and Clifford summed it up pretty nicely.
Generally wired (landline) phone service is viewed as a legacy service at this point and costs are very stable.
In terms of the proposed BCE purchase of MTS, outside of the wireless market there would be little that changes in market dynamics. Chances are there will be some minor adjustments on tv and broadband pricing but nothing overly dramatic.
The big question mark is the wireless side. That seems to be where all the attention of the deal is being focused currently.
It is also worth mentioning that separate from the BCE purchase the CRTC is currently doing a general review of broadband services and held hearings this spring to gather information with a ruling coming in the fall. It has also told the vertically integrated companies (Rogers, Shaw, Bell) that it will be having additional discussions on tv service later this summer when their license renewals are up. Finally, there was a questionnaire sent to the big three wireless companies asking some rather pointed questions hinting that there may be a major wireless ruling coming in early 2017 before the BCE deal closes.