IP Trunking “Legacy” provides a simple solution for converting legacy PBX lines into VoIP with an IAD (Integrated Access Device). The IAD will prioritize all voice calls over data and includes a built-in router to access the network. The standard IAD will support PRI, T1 CAS or POT(s) lines.
IP Trunking “Native” provides IP PBX customers with a business grade VoIP alternative versus installing costly TDM gateways and PRI’s. EXCEL supports industry standards including SIP 711/729 or H.323.