VIVA offers IP based Converged Communications Solutions. You may contact VIVA for SIP Trunking, IP PBX & PSTN integration, MS OCS & IP PBX integration, Managed VoIP and ''''Secure'''' VoIP.
This service gives an opportunity to configure priorities for several queues and different traffic classes at once, by indicating different levels of the priority for every traffic class in one type of service. It is also possible to customize several service types in the router.