SIP Trunks will be the global standard for voice communications in the NBN era as it’s a cost effective and flexible system that supports fast growth around multiple geographic locations.
Why use SIP Trunks?
SIP Trunking will reduce business costs, prepare your communications for NBN and may improve the quality of your phone service.
How SIP Trunking Works
SIP Trunking acts as a virtual connection between an organisation and an Internet Telephony Service Provider (ITSP) either via lines that link SIP trunks to other IP traffic, or through the Internet via a Virtual Private Network (VPN).
During a call, you can have any of the following scenarios and more:
- Be on a voice call with one other person
- Have multiple people on a conference call
- Run video calls
See the diagram on the right showing how calls flow from a SIP phone (VoIP) in a business to the internet.
Nowadays, instead of routing voice calls over copper lines, SIP trunking sends them over data networks. In other words, the physical phone line is replaced with a virtual one which provide better quality voice solutions.
The setup you’ll need to make the switch to SIP trunking includes the following:
- NBN Internet connection
- SIP-compatible PBX (Private Branch Exchange) box, also called IP PBX
- VoIP phone, or VoIP adapters if you’ll use your existing traditional phones
- Network connection for your phones
If you have an older PBX system, you may need a SIP-ISDN gateway. Newer systems may not require this additional hardware.