yes.... the internet will be workable...
but your landline DSL already has a profiling set... if the dsl has miov, then only miov for that house... if miotv enabled, then only miotv for the house... it's like changing a modem when it's faulty, changing to a better modem doesn't mean you get more bandwidth right? same thing.
it's the dsl which is controlled by exhcnages. The route of advancement for your dsl travels from the mdf to the dp to in your house... so despite changing the modem with same config, you will not be getting miov on house b or miotv on house a... internet ONLY will work... and your internet will be based on the dsl subscribed:10mbps etc..
tested and proven first hand...
one more thing, if you note down the link tree on MDC of the 2wire, if a house has miov, it will have ipnet4 up... a house without miovoice will not have ipnet4 up... it will say down instead...