REST API Overview

Telsmart REST APIs support configuration and data-management workflows that complement the real-time webhook model described in Getting Started.

Use REST APIs mainly for managing resources (for example, phonebooks and contacts), while real-time call state and summaries are delivered via events.

Environment

Base URL options:

Environment	Base URL
Production	https://api-eu-central-1.phoneserver.io
Development	https://api-eu-central-1.phoneserver.dev

Authentication & required headers

All Telsmart REST APIs use the same authentication model. See the authentication documentation for token acquisition and lifecycle details.

The following headers must be included in all REST API requests:

Header	Required	Description
Authorization	Yes	Bearer {your_oauth_access_token}
Current-Language	No	API language (nl-BE, fr-FR, en-US). Defaults to en-US.