---
title: "Can I connect my employees' iPhones to our office phone system?"
topic: "Business & Teams"
updated: 2026-05-04
canonical: https://acrobits.net/resources/knowledge-base/can-i-connect-my-employees-iphones-to-our-office-phone-syste/
summary: "Yes — any SIP-based office phone system works. For small teams, Groundwire (one-time $9.99/device) lets each employee connect their iPhone as a SIP extension. For larger deployments needing branded apps and server-side provisioning, Cloud Softphone handles zero-touch enrollment at scale."
---

# Can I connect my employees' iPhones to our office phone system?

> Yes — any SIP-based office phone system works. For small teams, Groundwire (one-time $9.99/device) lets each employee connect their iPhone as a SIP extension. For larger deployments needing branded apps and server-side provisioning, Cloud Softphone handles zero-touch enrollment at scale.

# Can I connect my employees' iPhones to our office phone system?

Yes — if your office phone system is SIP-based (hosted PBX, on-premise Asterisk/FreeSWITCH, 3CX, FreePBX, or any SIP-capable platform), employee iPhones can be connected as SIP extensions. The right tool depends on your scale.

## For small teams: Groundwire

**Groundwire** ($9.99 one-time per device, iOS and Android) is a retail SIP softphone. Each employee downloads and installs the app, then enters their SIP extension credentials. Setup takes a few minutes per person. Groundwire uses CallKit so calls appear on the native iPhone call screen, and SIPIS push so calls ring even when the app is closed.

  - No subscription, no per-seat fees — one-time purchase per device.

  - Works with [3CX](/resources/knowledge-base/can-i-use-a-third-party-softphone-with-3cx/), FreePBX, Asterisk, NetSapiens, BroadWorks, and most SIP platforms.

  - Each employee self-configures their own SIP credentials.

## For larger deployments: Cloud Softphone

If you're an operator, MSP, or telecoms provider deploying to dozens or hundreds of employees, **Cloud Softphone** is the platform-grade solution. It offers:

  - **[Server-side provisioning](/resources/knowledge-base/provision-softphone-hundreds-users/).** Push SIP credentials and settings to all devices without per-device manual configuration. QR code enrollment and MDM integration are supported.

  - **Branded app.** Your company name and logo in the App Store and Google Play — employees see your brand, not Acrobits.

  - **Operator analytics.** Registration success rates, call quality metrics, and usage data across your fleet.

  - **Full SIP feature set.** Transfer, conferencing, call recording, voicemail, do-not-disturb — controlled server-side.

## Which option is right for you?

  - **1–20 employees, any SIP PBX:** Groundwire — low friction, no setup overhead.

  - **20+ employees, or you need a branded app:** Cloud Softphone — provisioning at scale, full branding control.

**Small team?** [Download Groundwire](/sip-client-ios-android/). **Deploying at scale?** [Learn about Cloud Softphone](/cloud-softphone/) or [contact us](/softphone-demo/).

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