These service providers are built on top of the RingCentral Platform. Apps that work for RingCentral also work for these service providers.
Pipedream workflow automation app integration for AT&T Office@Hand
Pipedream is an integration platform built for developers building workflows and connecting cloud services. Author workflows without code, with over 700 integrated applications, or write any Node.js, Python, Go, or Bash code for custom logic.