Prerequisites
Before you can start using the SIPSIM API, make sure you have the following:
SIPSIM Account
You need an active SIPSIM account with administrator access. The API integration feature is available to account administrators only.
Visit sipsim.fr to sign up for a SIPSIM business phone account.
API Access Permissions
To create and manage API integrations, you must be either:
- Account Administrator — Full access to all integration settings
- Super User — Can create and manage API integrations
Regular employees cannot create API integrations.
Technical Requirements
Understanding of REST APIs
The SIPSIM API is a RESTful API that uses:
- HTTP methods: GET, POST, PATCH, PUT, DELETE
- JSON: All request and response bodies use JSON format
- HTTPS: All API communication is encrypted
OAuth 2.0 Basics
The API uses OAuth 2.0 with the Client Credentials flow for authentication. This is a simple server-to-server authentication — you just need your Client ID and Client Secret to get an access token.
If you're new to OAuth 2.0, don't worry — we'll walk you through the entire process in the Authentication guide.
Next Steps
Once you have these prerequisites in place, you're ready to:
- Create your API Integration — Set up credentials in the SIPSIM dashboard
- Authenticate with OAuth 2.0 — Get your access token
- Make your first API call — Start integrating!