It is is considered as one of the most prominent entity in the VoIP world. Company Digium has created it as a fully innovative approach to telecommunications. This company has delivered such software that enables people to configure a server and start to make calls.
NumberGroup provides business quality VoIP services to wholesale operators and SIP Trunk customers worldwide. We have over 1,000,000 UK and Internaiton telephone numbers are are a license UK operator with direct PSTN connectivity.