IP telephony

[Toby Corkindale]

Hey,
Is there any service around that will route real, live telephone numbers
through to a server's IP, via internet, using some kind of open-standard
protocol? (Eg. SIP)

Not just for a single phone number, but a whole block.
ie. So that one can run an office PBX without needing to buy an ISDN or SS7
card, and all the faffing about with that kind of thing.

cheers,
Toby

-- 
Turning and turning in the widening gyre/The falcon cannot hear the falconer;
Things fall apart, the centre cannot hold/Mere anarchy is loosed upon the world
(gpg --keyserver www.co.uk.pgp.net --recv-key B1CCF88E)