Before you buy a VoIP phone, you'll need a VoIP provider

A VoIP provider is the company that supplies your business phone service over the internet. Think of it like your internet service provider (ISP) but for phone calls.

Without a VoIP provider, a VoIP phone cannot make or receive calls. When you plug it in, it will display "Not Registered" or a similar error. This is the most common reason businesses end up with a phone that appears to do nothing.

Your VoIP provider gives you a SIP account, which includes a username, password, and server address. These credentials are entered into your phone (or auto-provisioned) to connect it to the phone network.

Unlike traditional landlines, VoIP phones need an active account with a provider to function. The phone itself is just hardware. The provider is the service.

• Cost savings: VoIP plans typically cost 40-70% less than traditional landlines for equivalent call volumes.
• Flexibility: Add or remove lines instantly. No technician visits. No waiting weeks for a new line.
• Features included: Voicemail to email, call recording, IVR menus, and ring groups are standard in most hosted plans.
• Works anywhere: Your number works on your desk phone, mobile app, or laptop. Perfect for remote teams.

Not all VoIP providers are equal. Here is what matters for Australian businesses:

• Australian hosting: Data sovereignty and call quality both improve when the provider hosts infrastructure in Australia.
• Auto-provisioning for Yealink: Good providers will configure your phone automatically using its MAC address. No manual SIP credential entry required.
• No lock-in contracts: Month-to-month plans are standard in the market. Avoid providers pushing 12-24 month lock-in.
• Local support: When your phones stop working, you need someone you can call in business hours in your time zone.