Independent Business Communications · Australia needtoknowit.com.au / needtoknowai.com

VOIP Fundamentals

Understand how modern business phone systems actually work — from the basics of VOIP and SIP through to PBX architecture, NBN compatibility, call quality, and what happens when things go wrong.

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Informational

VoIP Security for Australian Businesses: Threats, Fixes, and What to Check (2026)

VoIP phone systems are internet-connected services, and like any internet-connected service they attract unwanted attention. The specific threats are well-understood and the mitigations are straightforward. But most Australian businesses running VoIP have not implemented even the basics. This guide covers what actually threatens a VoIP system, what the consequences look like, and what to do about it.

27 May 2026
Informational

SIP vs VoIP Explained: What Australian Businesses Actually Need to Know (2026)

If you've been researching a new business phone system and keep seeing both 'VoIP' and 'SIP' mentioned as if they're the same thing, here is the plain-English explanation. VoIP means phone calls made over your internet connection instead of the old copper phone line. SIP is the specific technical standard most business phone systems use to make those calls. For most businesses, the distinction matters when buying hardware or choosing a provider.

22 May 2026
Informational

What Your MSP Isn't Telling You About Your Phone System

If your IT company manages your phone system and you're paying more than expected or missing features you were told were included, this guide covers what managed service providers typically don't volunteer when setting up business VOIP (phone calls made over your internet connection, instead of the copper phone line). None of this is unique to bad providers. It is the result of how MSP pricing models work, and knowing it in advance means you can ask the right questions.

20 April 2026
Informational

NBN Battery Backup for VOIP: What Happens to Your Phone When the Power Goes Out

If your business uses a cloud phone system and you are worried about what happens during a power outage, this guide covers the three ways to keep your phones working. VOIP (phone calls made over your internet connection) relies on your modem and router staying powered, not just your internet connection staying up. Most businesses do not need an expensive uninterruptible power supply. The right solution depends on your NBN connection type and whether your phone system has a mobile app fallback.

20 April 2026
Informational

ATA Adapter for Analogue Phones: Connect Your Existing Handsets to VOIP

If you have existing analogue handsets that you want to keep when switching to a cloud phone system, an ATA (Analog Telephone Adapter) lets you connect them without replacing the hardware. Most businesses switching to VOIP (phone calls made over your internet connection, instead of the copper phone line) don't need to replace their existing desk phones. This guide covers which ATAs work with Australian VOIP services, what they cost, and how to set them up.

30 March 2026
Informational

What Is a PBX? Guide for Australian Businesses

If you have come across the term PBX and were not sure what it meant, you are in good company. Most small business owners encounter it when looking at phone systems and nobody explains it clearly. In plain terms, a PBX is the system that manages your business calls. It routes calls to the right person, handles hold music, manages after-hours messages, and runs your auto-attendant. This guide explains how modern cloud PBX works, whether you need one, and what the NBN means for your setup.

27 March 2026

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