I know they could, under the OLDER plans.
(and therefore likely grandfathered to keep using it).
But under the NEW plans, it lists as the 'advanced', the CGN3, as being needed.
Dont know if you can still get them to set it though if you have the CGN2... possibly you can?
(most i have heard from here, people were forced to get the CGN3).
All in all, even if bridging the unit.. the CGN3 is likely the better choice... being 24 channel.