SIP Trunking Telephony

Embrace SIP telephony with Connect365's SIP Trunking solution


Future proof your business today...with SIP Trunking

SIP Trunking is a gateway between your traditional phone system and a fully hosted solution.


Using a data connection to make calls, this resilient product ensures your business will be future-proof.


What is SIP Trunking?

Connect365 SIP Trunking (Session Initiation Protocol) is a flexible, low cost alternative to ISDN. Using SIP allows your business to experience the benefits of a hosted solution, without removing your legacy telephone equipment.

It optimises your data connection, so you have one line for both voice services and your internet. It’s simply an evolution from a traditional phone system to one that can withstand whatever changes the future may bring, for example the forthcoming PSTN switch off in 2025.

What Are The Benefits Of Connect365 SIP Trunking? 

  • Minimal Disruption: retain your existing phone system

  • Business Continuity: never miss a call with automatic call diverts 

  • Reduce Charges: Free ‘on-net’ calls between customer sites

  • No Geographic Constraints: keep your number even when you move.*

  • Overlay Services Available: Use services such as call recording and call reporting without on-site hardware.


SIP Connect 12


5000 local & national minutes


12 Month Contract

SIP Connect 24


5000 local & national minutes


24 Month Contract

SIP Connect 36


5000 local & national minutes & 2000 Mobile Minutes


36 Month Contract


ISDN & PTSN 2025 Switch Off: Hosted Voice Means You’re Ready...


Hosted Phone Solution 
Users: 32  
Value: £25,000
Length: 5 Years


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Hosted Phone Solution 
Users: 38  
Value: £46,878
Length: 5 Years

Form IT

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Hosted Phone Solution 
Users: 7   
Value: £7,000
Length: 5 Years

Omni Security

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Frequently Asked Questions

What’s the difference between SIP Trunking and ISDN?

SIP Trunking is a newer technology and allows voice and data to be carried on the same channel. SIP trunks use internet to deliver voice and data through a single line whereas ISDN uses the traditional copper network to deliver voice and data.

What’s the difference between SIP Trunking and Hosted Voice?

SIP Trunking is a gateway to Hosted Voice. SIP is run on your legacy phone system whereas with Hosted Voice you get new technology and a fully hosted solution.

How many minutes are included within SIP Trunking packages?

It depends which package you choose. With our SIP Connect 12 and our SIP Connect 24 you’ll get 5,000 local and national minutes but if you opt for our SIP Connect 36 you’ll get 5,000 local and national minutes as well as 2,000 mobile minutes.


We decided to work with Connect365 as prices were competitive but mostly because of their proactive approach and their attitude to offering us the very best technologies.

Corporate Account Manager, FORM IT