unlikely. AAH (now called trixbox) is asterisk + AMPortal (now called freepbx?) + other stuff. You MIGHT get amportal (the gui) to fit in the router but I wouldn’t count on it.
i just want to have an integreted asterisk on a small office router. A pluggin Asterisk exists for openWRT but a@h seems to be not available due to the small size of the NVRAM (only 4 MO )
I have an ASUS 500g (i think), which is openwrt compatible and has 2 USBs, so if you want, you can give it a try. Anyway the CPU is about 125-200MHz, so im not quite sure how many (1) calls can you make