---
title: "Do I need a VoIP number to use Groundwire?"
topic: "Setup & Configuration"
updated: 2026-07-09
canonical: https://acrobits.net/resources/knowledge-base/do-i-need-a-voip-number-to-use-groundwire/
summary: "Yes. You need a SIP/VoIP account to use Groundwire. Groundwire is a SIP softphone app that connects to the SIP server your VoIP provider gives you. The provider gives you the number, the server, and the credentials; Groundwire handles everything on your phone."
---

# Do I need a VoIP number to use Groundwire?

> Yes. You need a SIP/VoIP account to use Groundwire. Groundwire is a SIP softphone app that connects to the SIP server your VoIP provider gives you. The provider gives you the number, the server, and the credentials; Groundwire handles everything on your phone.

Yes. You need a [SIP](/voip-glossary/sip/)/VoIP account to use Groundwire. Groundwire is a SIP softphone app that connects to the SIP server your VoIP provider gives you. The provider gives you the number, the server, and the credentials; Groundwire handles everything on your phone.

## What you need to set up Groundwire

  - **A SIP account** from a VoIP provider (examples: VoIP.ms, Twilio, Telnyx, Vonage Business, or a business PBX like 3CX or FreePBX).

  - **SIP credentials**: your provider will give you a SIP username, password, and server/domain address.

  - Your VoIP provider assigns the phone number, not Groundwire.

## Groundwire does not assign phone numbers

Acrobits provides the app, and your provider supplies the SIP account Groundwire uses. Groundwire [supports any standards-compliant SIP provider](/resources/knowledge-base/groundwire-compatibility/). If your provider gives you SIP credentials, Groundwire can work with that account.

The app itself is a [$9.99 one-time purchase](/resources/knowledge-base/how-much-does-groundwire-cost/), with no subscription.

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