Evariste Systems is an Atlanta-based software company specialising in open source-focused VoIP service delivery engineering for Internet Telephony Service Providers (ITSPs) and carriers.

Our primary line of trade is our SIP trunking delivery system, the Canonical SIP Routing Platform (CSRP). This product solves many technical and business problems in the delivery of "Class 4"-style SIP trunking services, 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 toward wholesale and retail termination/origination vendors, VoIP application service providers, and CLECs. We have worked extensively 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.

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.