Voxbone has begun supporting SMS to its iNum numbers – phone numbers with the "area code for Earth." With this addition, Voxbone's carrier and enterprise customers can offer their subscribers one global number that can receive SMS messages at competitive rates.

The move marks a breakthrough in iNum usage, as wireless subscribers from a growing number of prominent carriers – including Vodafone, T-Mobile, Orange, Virgin, and Boost Mobile – now are able to text these numbers. The service is already available in the United Kingdom, France and the United States, at prices ranging from 10 to 20 pence per message in the U.K., for example. Voxbone will be adding reachability from more wireless carriers in more countries in the coming weeks.

iNum numbers have a prefix of +883, the ITU-assigned international code for the Internet, just as +44 is the code for the U.K. and +1 refers to the U.S. As a wholesaler of direct-inward-dial numbers and IP transport provider, Voxbone receives calls – and now SMS messages – to numbers with this code and delivers them over IP to its carrier customers, for delivery to their end users.