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Insights Blog for Business Telecoms and Data Solutions, IT Networks, and Security.

SIP Trunks are way, way cooler than you think

Posted by Mark Quinton on 19 Jun, 2017

SIP Trunks for business are the logical choice when moving from ISDN ahead of the BT switch off in 2025. This means businesses still using ISDN phone lines need to switch, and fast.

But if you're a busy executive in charge of your business' changing IT and telecommunications, in today's fast-paced world, you are not alone if you don't know what SIP is. 

Is it just a replacement phone line? Or is it a technological revolution?

Beyond the standard business benefits of cost, connectivity and collaborationSIP Trunks are way, way cooler than you think.

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SIP is more than just a better quality phone line. SIP enables you to switch between screen, video chat, audio and video within a single session, even switching and inviting different users on voice or video conferencing. It powers the latest unified communications solutions. Employees with video enabled mobile phones can replace costly in-person meetings with one-to-one and group video conferencing. 


No business is 100% safe from attack, because hackers are developing more sophisticated methods to access your voice and data lines all the time.

But, it’s too easy to hack phone and voicemails.

The only way someone can eavesdrop on voice over IP (VoIP) calls is to capture packet information and reassamble that data into a conversation. It's not impossible, but it's extremely difficult. And anything that makes hacking more difficult is a good thing for your business.

So, when combined with all your other security measures your business takes, the privacy and security of your conversations will be a far more robust than you could achieve with traditional telephony, across any device and in any location.


SIP providers specialise in better uptime than ISDN. Our SIP trunks provide automatic failover and a 99.95% availability. Call routing to remote workers from any location will help you deliver a seamless experience for your customers no matter what happens in your business.

In contrast, disaster recovery with ISDN is expensive and involves installing redundant circuits. As BT will switch from ISDN to SIP by 2025, these legacy systems will become less and less efficient.

Want to know more about the move from ISDN to SIP?

Our free guide will help you find the right SIP solution to move your business forward. 

Get our Free ISDN to SIP Guide

Topics: SIP Trunks

Mark Quinton

Written by Mark Quinton

With over 20 years in the IT industry encompassing Cloud technologies, Data and Telephony solutions, Mark now leads the Sales team at Telefonix. Mark loves to understand a customer's “as-is” situation and then help them to deliver their “to-be” solution through a detailed plan and an excellent understanding of their goals. Providing service excellence and best of practice solutions is his raison d’etre. Mark understands the importance of delivering positive ROI and a smooth transition, enabling his clients to focus on their business goals. He enjoys watching live sport including Rugby and Football, he loves skiing, golf and travelling as often as he can.

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