Business phone systems
Business phone systems and Teams callingCloud phone systems on Yeastar, installed and supported by one team
A business phone system that works the way your people do: hosted Yeastar, Microsoft Teams calling or both, with desk phones, mobile apps and meeting rooms from one team. We recommend the platform, move your numbers across, deal with the carrier and handle every change through our service desk.
- 25secAverage wait to reach a Perth engineer on the service desk
- 15minTriage on every ticket, including call quality faults
- 98.3%Customer satisfaction on closed tickets
- 300+Client organisations supported by our team
Trusted by businesses across WA
01Where it goes wrong
When phones and Teams pull in different directions
Most communication problems we see come from systems added one at a time: a phone system from one supplier, Teams from another and meeting rooms nobody owns.
Staff juggle a desk phone and Teams
Calls arrive on one system and chat and meetings happen on another, so nobody is sure which number to give out.
FixOne place to take calls, either Teams or the Linkus app, with desk phones as an option instead of a requirement.
Calls go missing when people work from home
The office phone rings out while the person who could answer it is at their kitchen table.
FixCall queues, ring groups and mobile apps that follow the person, with voicemail to email so nothing sits unheard.
The phone system lives in a cupboard
An old on premises system with a maintenance contract, one point of failure and nobody who remembers how to change the menu.
FixA hosted Yeastar system or Teams calling, managed by us, with changes made through the service desk.
Meetings start ten minutes late
The camera will not connect, the speakerphone echoes and someone ends up running the call from a laptop.
FixA standard kit for each room, set up for Teams and tested before the first meeting.
02What we look after
Your phone system, Teams and meetings from one team
From the phone system itself to the network underneath, this is how the pieces fit together.
Hosted Yeastar phone system
A cloud phone system on Yeastar P-Series, hosted and managed by us, with call queues, recording, voicemail to email and desk or mobile apps.
Yeastar P-Series / cloud phone / call recordingMicrosoft Teams calling
External calls in Teams, with auto attendants and call queues, connected to the phone network in the way that suits you.
Teams Phone / Operator Connect / Direct RoutingVoice lines and numbers
SIP trunks, number porting and call plans, arranged with the carrier so you have one contact when something breaks.
SIP / porting / carrier managementTeams set up properly
Teams and channels structured and secured, so chat and files stay organised as the business grows.
Structure / guest access / governanceHandsets and meeting rooms
Yealink handsets, headsets and room kits supplied, installed and tested, so the hardware matches the platform.
Yealink / headsets / room kitsThe network underneath
Call quality depends on your internet and office network, so we size the links, prioritise voice and add backup connections.
Business internet / voice priority / failover03Hosted PBX
A cloud phone system, without the box in the cupboard
A hosted PBX, also called a cloud or VoIP phone system, is a business phone system that runs in a data centre instead of your office. Calls travel over your internet connection to desk phones, computers and mobiles, so staff answer the same number wherever they are.
We host and manage Yeastar for you: set up, call flows, updates, security and every change through the service desk. There is no phone hardware to maintain on site, and adding a new starter is a quick request.
Call queues and ring groups
Calls go to the next free person in the order you set, so the front desk is not a bottleneck.
Auto attendant
A greeting and menu that sends callers to the right team, with different rules after hours and on public holidays.
Voicemail to email
Messages arrive in the inbox as audio files, so nothing waits on a flashing desk phone.
Call recording
Recorded calls for training, disputes and compliance, kept for as long as you decide.
Desk phones and apps
Yealink handsets in the office and the Yeastar Linkus app on computers and mobiles, all on the same extension.
CRM integration
Caller details from your CRM when the phone rings, and click to call from your records.
Onsite installation
Handsets, headsets and room kits installed and tested on site, with staff shown how to use them.
Call reports
Missed calls, queue times and call volumes, so you can see when the phones get busy.
Not sure which plan fits your team?
Tell us how you run IT today. A technical consultant will scope it with you and send a fixed quote.
04Yeastar, Teams or both
Hosted Yeastar or Teams calling, how the options compare
There is no single right answer. It depends on where your people work, how busy your front desk is and how much of the day they already spend in Teams.
| Compare | Hosted YeastarCloud phone system | Teams callingMicrosoft Teams Phone | Yeastar inside TeamsBoth together |
|---|---|---|---|
| Best for | Busy reception, call centres and staff who want a desk phone | Teams first businesses that mostly call from laptops and mobiles | Reception on Yeastar, with office staff answering in Teams |
| Where staff answer | A desk phone or the Linkus app on a computer or mobile | The Teams app on a laptop or mobile | In Teams through the Yeastar Linkus app, on the same extension as their desk phone |
| Connection to the phone network | SIP trunks from a carrier we manage | Operator Connect, Teams Phone Mobile or Direct Routing (Microsoft Calling Plans are not sold in Australia) | Calls from Teams go through the Yeastar system and its SIP trunks, with no Teams Phone licence needed |
| Call handling | Call queues, recording and voicemail to email | Auto attendants and call queues | Yeastar queues for reception, Teams for everyone else |
| Who supports it | Our team, end to end | Our team, end to end | Our team, end to end |
Swipe the table sideways to compare all three.
Microsoft lists four ways to connect Teams Phone to the phone network. In Australia, Calling Plans are not available to buy, so numbers come through Operator Connect, Teams Phone Mobile or Direct Routing. We recommend the option after the review.
05How we switch you over
A change of phone system without missed calls
The old system keeps taking calls until the new one is proven, and your staff know what to expect before the day.
- Step 1
Review
We look at how calls flow today, along with your bills, contracts, numbers, handsets and licences. You get a recommendation and a fixed quote.
- Step 2
Design
Menus, call queues, opening hours, voicemail and recording are mapped with you, along with the carrier option for your numbers.
- Step 3
Pilot and train
A small group goes first. Handsets and room kits are installed and tested, and staff get short, practical training.
- Step 4
Port and support
Numbers are ported with the carrier and the cutover is planned for a quiet time. After that, changes go through our service desk.
06Proof
Communication that keeps up with growth
We run Yeastar phone systems with Yealink handsets and Teams calling in office fit outs. These clients show how the pieces come together.
PPS Water Group
Grew from 35 to more than 200 users on a cloud first move to Microsoft 365, with Teams, SharePoint and OneDrive, backed by network upgrades.
Read the case studyMowbray Architecture
Moved from iCloud and a PC acting as a server to SharePoint and OneDrive over a weekend, with new switching and Wi-Fi. We then fitted out their office expansion.
Read the case studyMTAWA
A client since 2013, supported through several office relocations with fibre on an SLA, Microsoft 365 and virtualised infrastructure.
Read the case studyRelated services and industries
07Recognised and certified
A top 50 MSP in Australia, three years running
Cloudtango named Austin Technology in its top 50 managed service providers in Australia in 2024, 2025 and 2026. We are also certified to ISO 27001 and ISO 9001, so the way we protect your data and run your service is checked by an independent auditor every year.
ISO 27001
Information securityOur information security management system covers how we handle client data, credentials and access to your systems, certified by Compass Assurance Services and audited every year.
How we protect your dataISO 9001
Quality managementSupport tickets, projects and onboarding follow documented processes, so you get the same standard of work whichever engineer picks up your job. Ask us for our certificates when you run a supplier review or tender.
08Questions
Business phone system questions
What businesses ask before changing phone systems. Anything else, call 1300 787 429.
01Should we take calls in Microsoft Teams or on a Yeastar phone system?
If your staff already work in Teams all day and mostly call from laptops, Teams calling keeps everything in one app. If you run a busy reception or want desk phones for most staff, hosted Yeastar usually suits better. Many businesses link the two, so reception runs on Yeastar and everyone else answers in Teams. We recommend one after the review.
02What is a hosted PBX or cloud phone system?
It is a business phone system that runs in a data centre rather than in your office. Calls travel over the internet to desk phones, computers and mobile apps, so there is no phone system box on site to maintain and staff can answer the same number from anywhere. We host and manage Yeastar this way.
03Do you install phones and meeting rooms on site?
Yes. We supply, install and test Yealink handsets, headsets and meeting room kits across the Perth metro area, and show staff how to use them on the day. Regional WA sites are set up by arrangement.
04Can we keep our existing phone numbers?
In most cases, yes. We port your numbers from your current carrier as part of the switch, and the old system keeps taking calls until the port completes. With Teams, your numbers stay with a carrier and connect through Operator Connect, Teams Phone Mobile or Direct Routing, because Microsoft Calling Plans are not sold in Australia.
05What happens to calls if our office internet goes down?
Hosted Yeastar and Teams both run in the cloud, so the phone system itself stays up when your office is offline. Staff can keep answering in the mobile app on mobile data, and we can divert calls to mobiles or another site. For offices that depend on the phones, we add a backup internet connection.
06How much does a business phone system cost?
It depends on the number of users, the platform, the call plan and any handsets or room kits. You get a fixed quote before we start, with carrier and licence costs shown line by line.
07How long does the switch take, and will we miss calls?
Most of the time goes into designing call flows and porting numbers, and porting depends on the carrier. The cutover is planned for a quiet period, usually after hours, and we test inbound and outbound calls before your staff arrive.
08We already have an IT person and a telco. Where do you fit?
We design and run the phone system and deal with the carrier for you, so your IT person is not stuck chasing faults between suppliers. They keep admin access, and our service desk handles changes such as new users, menus and opening hours.
What our clients say
1,800+ reviews from the people who call our Perth service desk every day.
1,800+
25
60+
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“Turns every IT problem into a non-issue”
Arthur turns every IT problem into a non-issue and does it with real patience and professionalism. He explains things in a way that makes the process easy and always leaves us feeling supported. We appreciate the way he handles every request.
Bronte J.Indian Ocean Hotel
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“Patient, capable and a genuine listener”
The support was outstanding. Patient, capable and a genuine listener, which is rare in support calls. He took the time to understand the issue and work through it with care. You are fortunate to have him on your team and the level of service was impressive.
Peter MidgleyPowertech
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“Steady, thoughtful and stress free”
Jamie put in a great deal of effort to resolve the problem and it showed in the result. His approach was steady and thoughtful and the support was appreciated. It made the whole experience smooth and stress free.
Jason CavallaroCallidus Process Solutions
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“Resolved the issue within minutes”
The consultant knew exactly what to do and resolved the issue within minutes. He talked through each step so I understood what was happening and made the process simple. The clear communication and fast resolution made a real difference.
Kirk LentonPilbara Construction
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“The extra guidance made it more valuable”
Brady tracked down an email I could not locate and took the time to show us how to search more effectively in the future. The extra guidance was helpful and made the experience more valuable. His support was straightforward and appreciated.
Tony YoungOptimus Real Estate
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“Resolved quickly, with none of my work lost”
They resolved my issue quickly and efficiently, which meant I didn’t lose any of the work I had done today. The support was clear and straightforward, and the outcome made a real difference to my day. Thank you.
Warner PriestInterContinental Energy
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“Calm, patient and always willing to help”
Dev Sandhu is outstanding in his knowledge and support. He has a calm and patient way of working through any IT issue and is always willing to help at short notice. His positive attitude makes the whole experience easier and more reassuring. Thank you to Dev and the team at Austin for the consistent support.
Peter AlexanderKoch Solutions
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“Refreshing after two unreliable IT providers”
After dealing with two unreliable IT providers in recent years, it has been refreshing to place my trust in Greg and the team at Austin. They have been professional and highly competent, even under pressure. Their support has made a real difference. Thank you, and keep it up.
Mark HutchisonLifewood
09Business phone systems
One team for every call,
chat and meeting.
Tell us about your phones, numbers and contracts. A technical consultant will scope the options with you and send a fixed quote.