> For the complete documentation index, see [llms.txt](https://docs.sprinthub.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sprinthub.com/en/topics/general/voip/how-the-voip-queue-works/operators-block-voip.md).

# Operators Block - VoIP

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&#x20;**What is the Operators Block?**

It is a component within the Sprinthub call flow that is used to define which users will receive calls at each stage of the service.

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#### **Service Options**

* **Sprinthub VoIP**\
  Sprinthub’s native cloud telephony service. It eliminates the need for a physical PBX and offers features such as call recording, reports, and scalability.
* **Vox Implant**\
  A third-party telephony solution integrated with Sprinthub, ideal for those who need more advanced features, such as voice bots and call transcription.
* **External SIP**\
  Allows you to connect an existing VoIP provider or PBX to Sprinthub using SIP credentials. Recommended for those who already have their own infrastructure or contracts with other carriers.

#### **How to Set Up**

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1. Create or edit a call flow in Sprinthub.
2. Drag the **Operators Block** to your service diagram.
3. Select a service (Sprinthub VoIP, Vox Implant, or External SIP).
4. Add the operators (users) who should receive the calls.
5. Define the distribution method (simultaneous, sequential, etc.).
6. Save and test the flow to make sure the calls are routed correctly.