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VoIP API

VoIP API Developer Portal

Complete control
over your telephony via API

Our VoIP API enables developers to integrate telephony functions directly into their own applications – quickly, flexibly and scalably. With modern RESTand webhook mechanisms, you can control calls, monitor events and automate processes without complex infrastructure.

Compatible with: SAP, Salesforce, Microsoft Dynamics 365, HubSpot, Zoho CRM, Oracle NetSuite & Open Source: Odoo, ERPNext, Dolibarr – and many more!

1

Click-to-Call

Start calls directly from your application - ideal for CRM, support tools or automated workflows.
2

Webhooks

Real-time notifications for incoming calls, call events, routing decisions and status changes.
3

CDR tracking

Full access to call detail records for reporting, analysis and billing.
4

DTMF / IVR control

Creation of individual voice menus, queries and dialog systems - completely configurable via API.
5

RTCM Features

Forwarding out of the telephone call, muting, recording the telephone call (distance selling contract)
6

High security

TLS-encrypted endpoints, token-based authentication, IP whitelisting.

Basic

€ 19

per month, plus VAT*.
  • 500 Deliveries incl.
      1. Webhook deliveries per month, thereafter € 0.01 per delivery
  • 7 event types
      1. Call Events, DTMF & Recording
  • Unlimited webhooks
      1. As many URLs as required
  • RTCM Features
      1. Call transfer, mute, recording
  • OAuth 2.0
      1. Secure token-based Auth
  • Basic Support
      1. within 24 hours
order now

Promeist bestellter

€ 49

per month, plus VAT*.
  • 5,000 deliveries incl.
      1. Webhook deliveries per month, thereafter € 0.008 per delivery
  • 7 event types
      1. Call Events, DTMF & Recording
  • Unlimited webhooks
      1. As many URLs as required
  • RTCM Features
      1. Call transfer, mute, recording
  • OAuth 2.0
      1. Secure token-based Auth
  • Priority Support
      1. Preferred processing
order now

Enterprise

€ 149

per month, plus VAT*.
  • 50,000 deliveries incl.
      1. Webhook deliveries per month, thereafter € 0.005 per delivery
  • 7 event types
      1. Call Events, DTMF & Recording
  • Unlimited webhooks
      1. As many URLs as required
  • RTCM Features
      1. Call transfer, mute, recording
  • OAuth 2.0
      1. Secure token-based Auth
  • SLA & Premium Support
      1. Guaranteed response time
order now
    * Telephony costs (minutes, SMS) are additional. The API only enables integration – not telephony itself.

Ready to get started?

Contact our support team to activate the VoIP API. We will help you set it up and answer all your questions.

API documentation

Comprehensive documentation helps you to implement your projects. However, should you get stuck, we will provide you with reliable, competent and, depending on the selected service level, fast support.

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