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SIP v ISDN: Which telephony service offers the best solution for your customers?

Why your customers should be considering SIP trunking services over ISDN.

In recent years there has been a decrease in ISDN as more channels in the UK are becoming disused. However, this shouldn’t mean that your business will find itself at a loss when it comes to your telephony solution. SIP trunking services are becoming increasingly popular – within the last 6 months of 2013 alone, there was an increase of 198,558 trunks.

This blog will explore the reasons why your business should consider switching from ISDN to a SIP trunking service. We will look at benefits ranging from greater flexibility to greater resilience and everything in between. Find out how moving to a SIP trunking service can provide you with cheaper running costs today.


More and more businesses are switching from ISDN to a SIP trunking service

Did you know that there are now more than one million SIP trunks in the UK?

In 2012 300,000 ISDN channels lost in UK.

There are many compelling reasons why your customers should consider SIP trunking services over ISDN.

These include greater control, greater flexibility, full scalability and reduced running costs.

SIP trunking provides a number of benefits for your customers:

› They could save up to 50% in line rentals and up to 25% in call charges
› Access to free internal calls
› A single connection for high-quality voice and data services
› Potential to save money without having to compromise QoS
› Move offices while keeping the same number and avoiding call forwarding costs
› Greater control – they decide how and where calls are delivered
› Full scalability – scale the number of lines up or down to suit their business needs
› Rationalise ISDN lines and reduce the number of PBXs
› Host PBXs in the cloud
› Use existing broadband or ethernet connection to upgrade to SIP
› Greater resilience and security to ensure business continuity in the event of a disaster