# Resource Software International Ltd. (RSI)

> RSI (telecost.com) has delivered call accounting and communication management software since 1990. Today its flagship product, Shadow Analytics, is an AI-driven communication intelligence platform that unifies calls, messaging, video, recordings, customer journeys and agentic AI interactions into one platform across RingCentral, Webex Calling, Zoom Phone, Microsoft Teams and Intermedia. Shadow Agent (branded Shadow AgentCX on RingCentral) adds call-center-style features to standard UC call queues, and Shadow All In One Analytics (Shadow A1) is RSI's earlier call accounting, analytics and recording platform, still actively supported on Avaya, Mitel, 3CX, Digium and Bell Total Connect.

## Products

- [Shadow Analytics](https://www.telecost.com/shadow-analytics.php): AI-driven communication intelligence - omnichannel analytics, traffic analysis, call journey, AI-built reports, agentic AI analysis, ecosystem health.
- [Shadow Analytics MCP](https://www.telecost.com/shadow-analytics-mcp.php): Connects Shadow Analytics to AI tools and agentic workflows via the Model Context Protocol.
- [Shadow Agent / Shadow AgentCX](https://www.telecost.com/shadow-agent.php): Adds call center features (disposition codes, presence dashboards, account codes) to RingCentral, Webex Calling and Zoom Phone call queues.
- [Shadow All In One Analytics (Shadow A1)](https://www.telecost.com/shadow-a1.php): Call accounting, call recording playback and cradle-to-grave reporting for Avaya, Mitel, 3CX, Digium and Bell Total Connect.
- [Products overview](https://www.telecost.com/products.php): All RSI products in one place.

## Platform / vendor pages

- [RingCentral](https://www.telecost.com/ringcentral.php)
- [Webex Calling (Cisco)](https://www.telecost.com/cisco.php)
- [Zoom Phone](https://www.telecost.com/zoom.php)
- [Microsoft Teams](https://www.telecost.com/microsoft.php)
- [Intermedia](https://www.telecost.com/intermedia.php)
- [Avaya](https://www.telecost.com/avaya.php)
- [Mitel](https://www.telecost.com/mitel.php)
- [3CX](https://www.telecost.com/3CX.php)
- [Digium (Switchvox / Asterisk)](https://www.telecost.com/digium.php)
- [Bell Total Connect](https://www.telecost.com/belltotalconnect.php)
- [All technology partners](https://www.telecost.com/partners.php)

## Company

- [About RSI](https://www.telecost.com/about.php): Founded 1990, based in Oshawa, Ontario, Canada.
- [Executive team](https://www.telecost.com/leadership.php)
- [Contact / headquarters](https://www.telecost.com/contact.php)
- [News and events](https://www.telecost.com/news.php)
- [Become a reseller](https://www.telecost.com/dealer.php)
- [Careers](https://www.telecost.com/career.php)

## Resources

- [Request a demo or quote](https://www.telecost.com/feedback.php)
- [Maintenance / support plans](https://www.telecost.com/support.php)