There are a couple other threads in here that discuss whether or not Cisco's 3G HWIC's can somehow be aggregated (through IOS or not) in order to essentially get an Nx3G amount of bandwidth over a carrier's network.
Cisco says the only option is to use multiple carriers, if in the same router:
One post mentioned the idea of implementing framed-routes. However, I haven't found one decent answer. We're trying to send HD video over wireless, and we'd need at least 3-4 3G signals to make this work.
Does anyone have experience with doing something like this within one router? (i.e. 2800 with multiple 3G HWIC's)
Is the only option to buy a few 1841's with 3G HWIC's in each, and route them all to our server's network? (maybe load balancing on a nice switch)
Any advice is greatly appreciated, thanks.