If you're in the UK, Andrews & Arnold have been providing "nerd SIMs" with proper networking and configurable voice services for years. Not that they're easy t

If you're in the UK, Andrews & Arnold have been providing "nerd SIMs" with proper networking and configurable voice services for years. Not that they're easy to configure or cheap :) but -> http://aaisp.net/telecoms-sip2sim.html http://aaisp.net/telecoms-sip2sim.html