It may not quite be true that the phone line is dead, but it is certainly true that we rely on our phones. In 2025 – ISDN lines will cease to be supported. Why? Simply because they are no longer current technology. They can no longer compete with the modern alternatives.

The idea of switching to internet provision for making and receiving business calls is not at all new. Yet many businesses remain reluctant to switch. Whether this is because of previous bad experience, or down to fears over reliability, caution is understandable. Caution is sensible, when you are talking about protecting the critical ability to talk to customers over the phone.

The idea is a simple one: you replace expensive ISDN lines with an internet alternative. Either connect an on-premise telephone system to the internet or move to a fully cloud-based solution.

Connectivity is key.

Available bandwidth, through your internet line(s), is clearly the first consideration. You need to ensure that your voice calls won’t break up when other forms of data are being transmitted. Voice data need to be given ‘VIP status’ – ensuring smooth communications.

There are various ways of achieving this Quality of Service (QoS). Our years of experience on the front line of business IT support tells us that no two businesses – and no two business networks – are alike. Each has its own requirements, and there is no silver bullet to achieve QoS goals. However, there are some key approaches that are often beneficial, individually or together:

  • setup corporate firewall to segregate bandwidth – giving priority to voice data traffic;
  • request the internet provider, similarly, to segregate voice traffic on their network;
  • install a second dedicated line for voice.

Some companies decide to rent a second line for voice traffic. This is the ultimate way of separating data streams and protecting your voice communications. Not all businesses will take that approach, as it comes with a price tag, but we do always encourage a secondary internet line as a backup solution. This is often a lower-cost line, with an automatic failover mechanism – easy to achieve with most internet providers. While a backup line may be slower, if gives you the ability to keep going in an emergency – keeping you open for business and protecting your image.

Proper connectivity is the first step when switching from ISDN. Get your network right, and you will be much more likely to be able to enjoy ALL the benefits of voice over internet. And there are MANY benefits to enjoy – new features, flexibility and, yes, cost savings!