VoIP for small business

Small Business VoIP & SIP Phone Systems With CRM Integration

We implement secure, SIP-based phone systems for Australian small businesses and connect them to the tools you already use, such as your CRM, helpdesk, Microsoft Teams and AI assistants, so calls are easier to answer, route, track and follow up.

Office worker on a business VoIP desk phone while an IT technician gives a thumbs up beside a server rack

01 / 

 Overview

01 / 

 Overview

Getting Your VoIP Up and Running is Easy

With a SIP-based VoIP system, your calls run over your NBN connection, so your team can answer your business number on a desk phone, computer or mobile, anywhere.

Security is built in, with encrypted calls and toll-fraud protection from our cyber security team. And we integrate your phones with your CRM, Microsoft Teams and AI tools, so every call is logged and nothing is missed.

Our Clients

Home Care Assistance logo
Samson's logo
Federation Mining logo
Buratt Consulting Engineers logo
Immotion logo

Our VoIP Services

SIP Trunking

We implement SIP trunks that connect your new or existing phone system to the internet for clearer, lower-cost calls.

CRM Integration

Connect your phone system to your CRM, helpdesk or job management software for click-to-call, caller pop-ups and automatic call logging.

AI Call Assistants

Add AI to your calls: transcription, automatic call summaries and notes in your CRM, and AI receptionists that answer FAQs and route calls.

VoIP Security & Fraud Protection

Encrypted calls, secure firewall configuration, call limits to stop toll fraud, and multi-factor sign-in on your phone system portal.

Hosted PBX Solutions

Cloud or on-site phone systems built on proven platforms such as Asterisk and FreePBX, with no expensive proprietary hardware.

Virtual Numbers

Acquire 1300, 1800, or local numbers to enhance your business presence.

Mobile Integration

Integrate your VoIP system with mobile devices for on-the-go communication.

Microsoft Teams Calling

Make and take business calls in Microsoft Teams on your computer or mobile, using your existing business number.

NBN & Business Internet

Fast, reliable NBN and business internet connections set up for clear, uninterrupted calls.

02 / 

 why us

Why Buzz A Geek?

Expertise

Experienced in implementing SIP-based phone systems and integrating them with the business software you already use.

Tailored Solutions

Customised VoIP systems designed to meet your specific business needs.

Reliable Support

Dedicated support team available to assist you whenever needed.

Affordable Pricing

Competitive pricing to ensure you get the best value for your investment.

03 / 

Process

Our VoIP Implementation Process

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01 - Consultation & Needs Assessment

We begin by understanding your business requirements to recommend the most suitable VoIP solution.

02

02 - System Setup & Configuration

Our team installs and configures the VoIP system, ensuring compatibility with your existing infrastructure.

03

03 - Testing & Optimisation

We conduct thorough testing to ensure optimal call quality and system performance.

04

Training & Support

Provide training to your team and offer ongoing support to address any issues or questions.

Small Business VoIP FAQs

What is VoIP?

VoIP (Voice over Internet Protocol) lets you make and receive phone calls over your internet connection instead of a traditional phone line. Your calls are handled by a cloud phone system, so your business number can ring on desk phones, computers and mobiles at the same time. For most Australian businesses, VoIP has replaced the old copper landline since the move to the NBN.

SIP (Session Initiation Protocol) is the open standard most business VoIP systems use to set up and carry calls over the internet. Because it is an open standard, a SIP-based phone system isn’t locked to one brand of handset or one provider, and it can connect to a wide range of other software. A SIP trunk can also connect an existing on-site phone system to the internet, so you can lower call costs without replacing your hardware.

VoIP usually costs less than a traditional phone system, with cheaper or included calls and no expensive on-site hardware. It also gives small businesses features that used to need a big PBX, such as call menus (“press 1 for sales”), call queues, voicemail to email, call recording and the ability to answer your business number from anywhere. Adding a new staff member is as simple as adding a user.

Yes, and this is where a SIP-based system really pays off. We can connect your phone system to your CRM, helpdesk, job management or practice management software and Microsoft Teams. Depending on the software, integration can include click-to-call from a customer record, caller details popping up on screen as the phone rings, calls logged automatically against the right customer, and calls routed to the right person based on who is calling. Tell us what systems you use and we will explain what’s possible.

Yes. Because SIP-based systems are built on open standards, we can connect AI modules to your calls, including live or after-call transcription, automatic call summaries and action items saved to your CRM, sentiment and keyword alerts, and AI receptionists or voice agents that answer common questions, take messages and route callers after hours. We will help you choose tools that suit your business and set them up so callers are told when calls are recorded or handled by AI, in line with Australian privacy and call-recording requirements.

Yes, when it is set up properly, but a poorly secured phone system is a real risk. Because VoIP runs over the internet, it faces the same threats as the rest of your network. We secure every system we implement with:


  • Encrypted calls (TLS and SRTP), so calls can’t easily be intercepted.
  • A correctly configured firewall that only allows trusted connections to your phone system.
  • Strong, unique passwords and multi-factor authentication on admin and user portals.
  • Call restrictions and spending limits, such as blocking international or premium numbers you don’t use.
  • Regular firmware and software updates for handsets and systems.

Learn more about our small business cyber security services.

Toll fraud is when criminals break into a business phone system and use it to make large numbers of expensive international or premium-rate calls, often overnight or over a weekend. The business is usually left to pay the bill, which can run into thousands of dollars. We prevent it by securing passwords and portals, blocking call destinations you don’t need, setting daily spending limits and alerts, and restricting calls outside business hours where appropriate.

Scammers can fake (spoof) caller ID to make it look like they are calling from a trusted number, and voice phishing (vishing) calls are a common way to trick staff into sharing passwords or paying fake invoices. We help reduce the risk by securing your phone system and numbers, and through staff awareness training so your team knows how to spot and handle suspicious calls. Our cyber security services include phishing awareness training for your staff.

Not necessarily. You need a reliable internet connection and a business-grade router, then you can use IP desk phones, cordless DECT phones, headsets, or a softphone app on your computer or mobile. Some existing phone systems can be connected to VoIP using SIP trunking.


The router matters more than most people realise. We typically use MikroTik routers, which we configure specifically for voice: Quality of Service (QoS) to prioritise calls over other traffic, a separate network (VLAN) for your phones, firewall rules that only allow trusted SIP connections, and SIP ALG turned off to prevent dropped or one-way calls. We will assess what you already have and only recommend new handsets or equipment where they are needed.

Yes. Your existing landline, 1300, 1800 and mobile numbers can usually be moved (ported) to your new VoIP service. A simple port typically takes a few business days, while complex ports, such as multiple numbers or 1300 and 1800 numbers, can take longer. Don’t cancel your old phone service before the port is complete, as you could lose the number. We manage the whole process for you.

VoIP phones need power and an internet connection, so they won’t work during a power outage or internet dropout unless you have a backup plan. The ACMA notes that most services connected to the NBN won’t work during a power outage, which means you can’t call 000 from them (ACMA: Emergency calls). Keep a charged mobile phone available for emergencies. We can also set your system to divert calls to mobiles automatically if your office goes offline, and recommend a battery backup (UPS) for your NBN equipment and router.

VoIP doesn’t need a lot of speed. Each call uses roughly 100 kbps, so most NBN plans can handle several calls at once. What matters more is a stable connection with good upload speed and low latency, plus a business-grade router that prioritises voice traffic (Quality of Service). If your internet drops out or your calls sound choppy, we can test your connection and recommend the right NBN plan or router before you switch.

VoIP is usually charged as a monthly fee per user or per line, with either included calls or low call rates, plus any handsets you choose to buy. Because there is no expensive phone system to buy or maintain on site, most small businesses pay less than they did for traditional phone lines. Every business is different, so we provide a free VoIP quote based on your number of users, call volumes and features.


For businesses watching their budget, we often build systems on Asterisk and FreePBX, proven open-source phone platforms used by businesses worldwide. Because there are no per-user licence fees for the core system, they can deliver professional features such as call menus, queues, voicemail to email and call recording at a much lower cost than proprietary systems, and they integrate well with CRMs and other software.

Yes. With a softphone app on your mobile or computer, your team can make and receive calls using your business number wherever they are, so customers see your business number rather than a personal mobile. If you already use Microsoft 365, calls can also be made and answered directly in Microsoft Teams. See our Microsoft 365 support for more.

It depends on what you have. Some modern phone systems can be kept and connected to the internet using SIP trunking, which reduces call costs without replacing your hardware. Older systems are usually best replaced with a hosted (cloud) phone system, which removes on-site equipment and maintenance. We will assess your current setup and explain the options and costs before you decide.

Yes. Adding a new user, number or office is usually a quick change in the system rather than new wiring or hardware. VoIP works across multiple locations and for staff working from home, so your phone system can grow or shrink with your team. If you would like ongoing support for your phones and IT, our managed IT services can look after it for you.

Get a Free Small Business VoIP Quote

Tell us how many users you have, the systems you use (such as your CRM or Microsoft Teams) and what you would like your phones to do. We will recommend a secure, SIP-based VoIP solution and give you clear pricing before anything changes.
Phone
1300 738 570
Email
support@buzzageek.com.au
Support
Managed services, onsite and remote support
Coverage
Australia & New Zealand

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Our Locations
Australian Capital Territory
Northern Territory
South Australia
Tasmania
Victoria
Western Australia
New Zealand

We’re excited to announce our presence on the South Island! Our goal is to expand our full range of IT services across New Zealand, and we’re actively looking for talented IT technicians to join us on this journey. If you’re based in New Zealand, we’d love to connect with you!

Remote IT Support
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Can’t find your location on our map? Not to worry, we are Australia-wide.
 
We also offer remote IT support, and our expert computer technicians can resolve many of your IT issues using remote access tools, at a fraction of the cost of having an on-site technician.