Evariste Systems is a software company specialising in open source-focused VoIP service delivery engineering for Internet Telephony Service Providers (ITSPs) and carriers. We are based in Athens, Georgia, USA (not far from Atlanta), home of the University of Georgia.

Our primary line of trade is our SIP Class 4 switch system, the Canonical SIP Routing Platform (CSRP). This product solves many technical and business problems in the delivery of SIP trunking, PSTN connectivity and internal switching, including high-performance Least Cost Routing (LCR), flexible call routing, and on-the-fly call accounting and rating.

We know that when customers buy our software, they are also buying a vendor relationship from which they expect high service value and dependability. We provide our supported customers with a variety of technical services related to voice backend engineering and day-to-day operational support, including IP network architecture, vendor selection, capacity planning, SIP protocol analysis and troubleshooting. In addition, our experience in the competitive carrier space has enabled us to play an advisory role on questions of PSTN-side economics.

Historically, our pedigree is in consulting oriented for and retail termination/origination vendors, VoIP application service providers, and CLECs. We have worked with Kamailio, SEMS, FreeSWITCH, and Asterisk, as well as a variety of proprietary converged telecom hardware from vendors like Cisco and Acme Packet. We have built and integrated high-performance, cost-effective software platforms for core routing, call accounting, and trunk billing & rating. In implementing our software solutions, we draw extensively upon the lessons of our experience in this sphere.

Furthermore, we maintain a blog on technical topics related to Kamailio, SIP platform-building, and CSRP. We aim to publish in-depth articles of aid to the wider Kamailio and FOSS (free/open-source) VoIP community.

We thank you for your interest, and hope that you will consider our software products and related services in the evolution of your VoIP business.