Broadvox (www.broadvox.net) has announced GO! SIP trunking. The offering includes E911, DIDs, and local number portability allowing businesses to keep their current phone numbers, along with unlimited local, toll-free, nationwide, and international calling. The company is offering the service for resale through VARs, distributors, and OEMs, providing commissions with every sale and recurring revenue based upon customer usage of the SIP trunking products and services.