Build voice, SMS and presence into your CRM.
Everything your integration needs — auth, an embedded softphone widget, realtime call/SMS events, and a thin JS client. Pick a starting point:
Guide
Documentation (English)
Full integration guide — auth, softphone widget, realtime events, SMS.
Guía
Documentación (Español)
Guía completa de integración — auth, widget softphone, tiempo real, SMS.
Reference
OpenAPI spec
Import
openapi.json into Postman/Insomnia to explore every endpoint.
Widget
Softphone script
<script src="/softphone.js"> → window.TwoCXSoftphone
SDK
JS client
<script src="/sdk.js"> → window.TwoCXClient, fetch + realtime WS wrapper.
Status
API health
webphone.2cxvoip.com/health