REST API endpoints for Cisco ET60 desktop

REST API endpoints for Cisco ET60 desktop terminal devices with authentication using user name (email) and password rather than JWT

WebEx has XML API endpoints for ET60 terminals account with username and password BASIC authentication. I work for law enforcement agency and one of the project undertaken is to integrate our system with WebEx REST API Endpoints to schedule WebEx meetings with ET60 terminals having WebEx accounts.

At present, WebEx REST API requires Bearer token (JWT) either by guest issuer or an integration but we would like to use device account credentials either BASIC authentication OR Web API endpoint to call with BASIC authentication and get token for subsequent API calls.