Observed arrival · 2026-08-28

OpenVoIP Router: One Dial Plan for WhatsApp, Teams, OpenAI, and PSTN

openvoiprouter.com Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

An open-source, self-hosted SIP core designed to route calls across WhatsApp Business Calling, Microsoft Teams Direct Routing, OpenAI's Realtime API, and standard PSTN providers.

Landing page captured for the 2026-08-28 issue.

Field notes

The proposed architecture places WhatsApp Business Calling, Teams Direct Routing, OpenAI Realtime over SIP, and a conventional PSTN trunk on the same dial plan. The page names SIP registration, number normalization, and least-cost routing as core control-plane functions, with signalling and media intended to remain on infrastructure controlled by the operator. Its dated build log records a locked core design, validated Teams routing, a connected WhatsApp endpoint, and OpenAI integration in early testing.

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○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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