If you've gone through all troubleshooting, go through the automated chat or call and report No Dialtone specifically.
With the troubleshooting, what happens when you unplug the phones from the phone lines and then try calling your number from a cell? If still busy, definitely a no dialtone issue and likely outside of the house.
Thanks for the suggestions. I cannot call, I have no functioning phone(s), or cellphone. I will try the Chat, although I thought I was using it with a real person until I realized it is automated and infinite loop once completed! Someone called my number from a cell, and they were met with a busy tone. That's how I found out my landline is not working properly.
We had this issue with a commercial account landline. Had a dial tone, but no calls in or out. Took an adjustment on the back end to fix it.
I suggest borrowing a phone to make a call to Telus to effect correction.