I have SIP trunks on my office BCM50 R6 and finally got the find me/follow me feature to work. Be sure to allow access to BlocA (IP trunks) or BlocB (PRI channels) for the virtual terminal DN's. Also, I have a customer who was trying to get FMFM to work on a BCM50 with a PRI. It turned out his problem was not having an outgoing number programmed in the OLI field for the virtual terminals. He learned that the PRI provider was rejecting all anonymous calls when he tried to hand-off calls using F960. As soon as he filled in the public OLI field for all the virtual terminal DN's the FMFM feature worked fine.