You could call Bell to get a new modem if yours is broken
There is no charge on the modem replacement.
If you like to use two modem at the same DSL link, sorry, it does not work. Only one one modem can establish PPPoE connection at the same time.
Or, if you choose other service provider, and your monthly fee does not include modem rental, it is a good idea to find a used one to save some bucks. If this is the case, it is better to say "LF a DSL modem"