We have a customer running 12 VoIP lines and internet on a data T1 from babytel https://www.babytel.ca/. I've had no issues with bandwidth for either voice or data.

Now I'm not sure what the max would on a straight DSL or Cable connection would be.


Marv CCNA, CTUB
TeleMarv Services (Retired)
Providing telecommunication solutions in Ottawa Canada since 1990