# VoIP Test in SprintHub: Which Link to Use and Why Test?
SprintHub offers an essential tool to test the integration of external platforms via SIP with our VoIP framework. This process ensures that your operation will run stably and efficiently within SprintHub.
But attention: there are **two different test links** each with a specific purpose. Below we explain when and how to use them, as well as why the test is so important.
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#### ๐งช 1. Link for Those Who Are NOT Yet a Customer
If you still **are not a SprintHub customer**, use the following link:
๐
This link is ideal for integrators or interested parties who want to previously validate the compatibility of their telephony platform with SprintHub before subscribing or migrating.
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#### โ 2. Link for Those Who Are Already Customers
If you already have an active instance with SprintHub, access the test using the following format:
๐ `https://instancename.sprinthub.app/voip/tester`
> Replace `instancename` with the name of your instance.\
> Example: `https://mycompany.sprinthub.app/voip/tester`
> **Requirement:** It is necessary to be **logged out** of the SprintHub platform for access to work correctly.
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#### ๐ฏ Why perform the test?
The purpose of the test is to **verify whether your external telephony platform is accepted on SprintHub via external SIP**.
For the integration to work, the external platform must necessarily support **connection via WebSocket (WSS)**. This protocol is what enables real-time communication between SprintHub and your VoIP provider.
**โ If the test is not successful:**
It is still possible to use SprintHub normally, provided that the number is **ported to Vox Implant** (our approved provider).\
In this scenario, it is necessary for Vox Implant's technical team to evaluate the portability possibility and the technical feasibility.
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