Guide A UK Business Guide to SIP Trunking
Discover how SIP trunking can give you more control and flexibility over your business communications.
What's in the Guide?
In 2025, BT is switching off its legacy ISDN service and upgrading to new technology. If you're looking for an alternative to ISDN lines, SIP trunking could be a great fit for your business.
Introducing a new technology into any business can seem like a daunting task, which is why we’ve created our extensive guide into how SIP trunking can give you more control and flexibility over your business communications.
We’re going to break down the jargon and explain SIP technology. This will help you decide which new telephony is best for your business. In this guide, you’ll learn:
• What SIP trunking is
• How SIP trunking works
• What to consider when upgrading your legacy telephony
• The relationship between SIP and VoIP