---
description: Compare VoIP Office vs SIP.US to learn about each of the product's price, benefits and disadvantages. Choose the best software for your business in Australia.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/capterra/og_logo-e5a8c001ed0bd1bb922639230fcea71a.png?auto=format%2Cenhance%2Ccompress
title: VoIP Office vs SIP.US Comparison - Capterra Australia 2026
---

Breadcrumb: [Home](/) > [VoIP Software](/directory/30940/voip/software) > [VoIP Office \<span\>vs\</span\> SIP.US](https://www.capterra.com.au/compare/182084/186600/voip-service-providers/vs/sip-us)

# Compare VoIP Office vs SIP.US

Canonical: https://www.capterra.com.au/compare/182084/186600/voip-service-providers/vs/sip-us

> Detailed comparison between VoIP Office and SIP.US. Check ratings, reviews, pricing, and features to make the best decision for your business.

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## At a Glance

| Metric | VoIP Office | SIP.US |
| **Overall rating** | 4.2/5 | 4.7/5 |
| **Total Reviews** | 6 | 85 |
| **Starting Price** | USD 26.95 | USD 24.95 |
| **Free Trial** | Yes | Yes |
| **Free Version** | Yes | No |
| **Deployment** | Cloud, SaaS, Web-based, Mac (Desktop), Windows (Desktop), Linux (Desktop), Android (Mobile), iPhone (Mobile), iPad (Mobile) | Cloud, SaaS, Web-based |
| **Support** | Email/Help Desk, Knowledge Base, Phone Support, 24/7 (Live rep), Chat | Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support, Chat |
| **Training** | In Person, Live Online, Webinars | Documentation |

## Best for

### VoIP Office

VoIP solution designed for businesses of all sizes in healthcare, financial services, government, educational, travel, technology, and hospitality sectors to streamline communication processes.

### SIP.US

We have thousands of clients across a diverse set of markets. Anyone that is looking to leverage the power of a SIP Trunk, we can support.

## Key features

### VoIP Office

- API
- Auto-Dialer
- Automatic Call Distribution
- CRM
- Call Disposition
- Call Monitoring
- Call Reporting
- Call Routing
- Call Screening
- Call Transfer
- Caller ID
- Chat/Messaging
- Computer Telephony Integration
- Customizable Reports
- Multi-Channel Communication
- Real-Time Analytics
- Real-Time Monitoring
- SIP Trunking
- Video Conferencing

### SIP.US

- Call Monitoring
- Call Reporting
- Call Routing
- Call Tracking
- Call Transfer
- Caller ID
- Real-Time Monitoring
- SIP Trunking

## Links

- [View VoIP Office Profile](https://www.capterra.com.au/software/182084/voip-service-providers)
- [View SIP.US Profile](https://www.capterra.com.au/software/186600/sip-us)
- [View Original Comparison](https://www.capterra.com.au/compare/182084/186600/voip-service-providers/vs/sip-us)

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