With Vox800, Voxbone provides local toll-free phone numbers from various countries for direct inward dialing (DID). Calls to these telephone numbers are converted from PSTN to VoIP and are transported to anywhere in the world over Voxbone's intercontinental private IP backbone. In a growing number of countries, existing telephone numbers can be ported to the Vox800 service.
Calling toll-free numbers is free for the caller. Consequently, a per-minute fee is charged to the Vox800 customer. The per-minute fee varies among countries depending on the type of network from which the call originated. Wherever possible, Voxbone offers its customers the possibility to block calls per type of originating network, a feature known as Calling Party Category (CPC). CPC information is available in the Vox800 CDRs and SIP-headers and it can be inserted in the destination URI.
The number of simultaneous incoming calls on Vox800 is determined by the number of associated channels. Each channel allows for one concurrent call. Contrary to traditional voice services, the channels are not linked to countries and numbers as call capacity can be shared by numbers from different countries.