Calls originating from the PSTN are aggregated to a single point of interconnection and delivered to enhanced service providers via TDM or SIP.
Avaco System SIP Origination service allows calls originating from the public switched telephone network (PSTN) to access service providers through Avaco System IP network using direct inward dial (DID) numbers.
Avaco System’s SIP Termination is a carrier-class wholesale service. Avaco System terminates local, interstate, and intrastate voice calls that can originate on IP-enabled or PSTN devices.