Your phone system may be coming to the end of it’s life within 2 years!

Say goodbye to using PSTN & ISDN phone lines forever

As the NBN network is driving a switch from copper based voice services to services that run over broadband & data services, over the next 2-4 years PSTN & ISDN will be phased out. This means that traditional PSTN & ISDN phones and phone systems will be forced into switching to alternative VoIP based services. If you want to keep your PSTN Phone numbers, you will have no choice but to move to VoIP based service to replace your old voice lines.

PSTN is the same phone line most people have at home, whereby analogue voice data flows over circuit-switched copper phone lines. While it may have evolved over the years, PSTN is a very, very old technology, operating on the same fundamental principles as the very first public phone networks of the late 19th Century.

ISDN, by contrast, is a spritely young thing from the late 1980s. ISDN allows both voice and data services to be delivered over digital lines simultaneously. When it launched, ISDN was well-suited to businesses, as it could support early video-conferencing systems at the same time as an analogue phone line. For a time, it could also offer the fastest internet access available. Naturally, since ISDN is no longer the place to go for video-conferencing or a fast internet connection, its unique selling position has quickly been eroded.

What happen’s next?

In a nutshell a majority of phone systems will need to be moved to voice over IP (VoIP), or replaced by a system which utilizes VoIP. VoIP is hardly ‘new’. But it is a good thing. VoIP has been a proven platform for voice for some time now. It works and it works well. If your business has renewed its telephony sometime in the last few years, you may have been told about it.

Advantages of VOIP

VoIP has many advantages over PSTN and ISDN; it is much quicker to setup the new lines, and it is vastly scalable and flexible. A few more advantages of using VOIP are as follows:

Cost savings – with VoIP, the calling costs are significantly lowered compared to that of ISDN & PSTN phone systems.

Rich features – Some of these features include: call forwarding, blocking, caller ID and voicemail, and remote management.

Portability – Using VoIP will allow for one number for multiple devices including iPhone, Android, Mac and PC. Software phones will also be available for use with VoIP. In most cases you can just pick up your VoIP handset and take it with you and plug it into a network switch and off you go. You are no longer tied to the office or area code.

No extra cables, no extra cost – A VoIP phone number, unlike your regular phone number, is completely portable. Most commonly referred to as a virtual number, you can take it with you anywhere you go. You can pick up your handset and take it to another location, as long as it has internet.

Future Proof  VoIP systems are built to be more responsive to advancements in technology. There’s a limit to what traditional telephones can do, and the technology hasn’t changed much over the last century. VoIP systems are built on Internet technologies and are software-based.

Solution and More Information

Bang I.T Solutions can assist you through the whole process of moving from ISDN and PSTN systems to VoIP. Bang I.T can supply, setup and continue to support various phone systems which are VoIP. The phone systems we support are loaded with all the features you expect from a high end phone system for a low monthly cost. We even have unlimited phone calls available on VoIP systems for a fixed price.

Once you’ve moved onto VoIP there’ll be no more worries about your phone system being disconnected in the near future! If you’ve recently upgraded your internet or are thinking of upgrading your internet, now is the perfect time to think about making the change.

For more info you can reach us by emailing, calling us on 1300 770 035 or by visiting



Ready to Transform Your IT?

Contact us now to get started on your IT journey

Scroll to Top