these answers are from another forum i ama member of
Yes, if the set at the remote site is an IP phone registered to the BCM at the main site.
Can we make two phones, at two sites, on two BCM's ring simultaneously from the same DID/Target Line? Maybe, but I've never tried. I'm wondering what would happen if we used two sets(A & B) at the main site, one target line A/R on both sets. Hard call forward set B to the DID for the set you want to ring at the other site. Don't know if the call would continue to ring on set A at the main site, but I'm thinking it would ring both sets until one of them answers.
Randy
ski season has started