Unified Communications, OTT, and telecom providers can configure, launch, and monetize any type communication service in IP networks. This includes Unified Communications, Hosted IP PBX / IP Centrex and SIP Trunking. DID Management, DID Management, OTT Voice and calling cards. VoLTE/VoWiFI are some of the key functional modules. Key functional modules: Class 4 & 5 SIP softswitch, for residential and enterprise telephony service; convergent online billing, service provisioning and charging (optional).