[c-nsp] ACE20-SBC experiences?

[randal k]

Anybody on the list have experience with Cisco's ACE20-SBC session border
controller linecard? I have been learning as much as I can about it, and I'd
like to verify that it is indeed the panacea for all things VoIP that it
claims to be. Also of note, does it work only with the 7600, or does the
6500 chassis work as well (documentation says yes, to the former, zero
information on the latter).

General anecdotes very much appreciated --

Cheers,
Randal