How to Register a Business Phone Number

A business phone number isn’t just a contact method — it’s part of your credibility. It builds trust, separates you from hobby businesses, and shows your customers you’re serious.

If you’re still using your personal mobile, it’s time to change. 

Let’s walk you through how to get a professional business phone number, what options exist in Australia, and why it matters for long-term growth.

1300 and 1800 numbers are common for national presence, while virtual local numbers (02, 03, etc.) help build trust with specific regions.

What Is a Business Phone Number and Why It Matters

A business phone number is a dedicated number used exclusively for work. It might be a local landline, toll-free (1300/1800), or a virtual mobile line — but it’s distinct from your personal number.

It shows clients you’re legit. It routes calls smartly. And it can grow with your business.

Here’s what you can use it for:

• Customer support or enquiries

• Sales and onboarding calls

• Appointment or booking lines

• Marketing campaigns (with tracking)

• Business registrations, ABN, and official listings

In Australia, 1300 and 1800 numbers are common for national presence, while virtual local numbers (02, 03, etc.) help build trust with specific regions.

Why Registering a Business Phone Numbers Matter

• Professionalism: Customers feel more confident contacting a business with a clear, dedicated line.

• Privacy: Keeps your personal number off the internet and out of marketing databases.

• Call Management: Forwarding, voicemail, team routing, and after-hours rules save you time.

• Marketing Attribution: Track which number drove the call — Facebook ad or Google search?

• Scalability: As you grow, your number stays consistent across teams, tools, and locations.

Real Talk: If you're relying on a personal number, you're blending your boundaries. Registering a business phone number is a micro-upgrade with a macro impact.

What You Need Before You Start

• Your business ABN

• Your business structure and trading name

• A preferred number type (local, 1300, 1800, virtual mobile)

• An idea of your call volume (to choose a right-sized plan)

• Any software you want it to connect with (e.g. CRM, calendar, support desk)

Mentor Tip: Think beyond just “getting a number”. Think about how it will plug into your sales, support, and marketing systems.

How to Get a Business Phone Number in Australia:

Step-by-Step

Step 1: Decide on the Right Number Type

Choose from:

• Local numbers (e.g. 02, 03) for regional trust

• 1300 numbers (shared cost) for national presence

• 1800 numbers (free call for customers)

• Virtual mobile (business SMS + call routing)

You’ve selected a number type that matches your brand and customer expectations.

Step 2: Choose a Provider

Compare providers like:

• Aussie Broadband

• Telstra BizEssentials

• VentraIP / CrazyTel

• Sonetel / Grasshopper (for virtual global)

Look for:

• Call forwarding & routing

• Voicemail-to-email

• Mobile app support

• CRM or calendar integration

You’ve found a provider with the features and scalability you need.

Step 3: Register and Configure the Number

• Purchase or register your number

• Set forwarding rules (e.g. weekdays vs after-hours)

• Add voicemail, welcome messages, or call tree

• Link to your mobile, team, or VoIP platform

Your phone system is live, and ready to receive business calls professionally.

Step 4: Add It Everywhere

• Google Business Profile

• Website and landing pages

• Email signature

• ABN and ASIC records

• Business cards and proposals

Clients and partners know how to reach you — and you’re not giving out your personal mobile.

Cost of Setting Up a Business Phone Number

Option	Cost (Monthly)
Virtual mobile number	$9 – $20/month
1300/1800 number	$15 – $50/month
VoIP with call routing	$20 – $60/month
Call tracking tools	$25+/month (optional)

Cost-Saving Tip: Many virtual number platforms offer free trials or bundles with team calling apps.

Common Mistakes Business Owners Make

Still using their personal mobile 

Looks unprofessional, limits growth, and invites spam.

Choosing the wrong number type 

e.g. Using a local number for a national business — or vice versa.

Forgetting voicemail or after-hours routing 

Lost calls = lost leads. Set it up once and win more customers.

Not listing the number properly 

If Google can’t find it, customers can’t either.

Paying too much for basic features 

There are affordable options that work just as well as telco plans.

What to Do Right Now

✅ Get the StartUp Deck — it covers 250+ things you need to launch fast [theStartUpDeck.com] Get 6 months free access to ProDesk.com

✅ Get it done for you. [Noize.com.au] — we will take care of everything with our 1300 number package, designed for startups and founders.

COMING in 2026...

✅ View the Business Resources on [ProDesk.com]

FAQs

Do I need a 1300 number to look professional? 

Not always. A local number can build stronger trust in your area — but 1300 works better nationally.

Can I port my mobile number into a business system? 

Yes. Some platforms let you port or mask your personal number through a virtual system.

What if I miss a call? 

Most systems include voicemail, SMS alerts, or email summaries. You’ll never lose a lead.

Do I need to register it with ASIC? 

You don’t have to, but it should appear on your business registrations and ABN listing.

Can I receive texts too? 

Some providers allow SMS with your business number. Useful for confirmations or marketing.