IS introduces Voice over IS (VoIS); a full portfolio of converged voice services, allowing customers to achieve greater flexibility and cost-effectiveness on all their telephony needs.  IS customers receive a reliable communication service and outstanding call quality. Our portfolio of services include:

• VoIS Community: Calling branches of the same company and other VoIS customers over the VoIS network           
• VoIS National: National calls over the VoIS network
• VoIS Cellular: Cellular calls over the VoIS network
• VoIS Global: International calls over the VoIS network

All of the converged voice phone services are delivered over the IS Multiprotocol Label Switching (MPLS) network, which is designed to carry both voice and data traffic. VoIS customers can choose the individual components of the service they require, and change or add further components as their needs change.