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Your customer journey to IP telephony 

The simple and cost-effective alternative to traditional phone services

VoIP solutions, allowing voice calls over the internet, while Network SIP allows your customers to run multiple communication apps over an IP network or the internet. 

SIP Trunking allows your customers to discover the VoIP world before moving closer to the Cloud.  They can run multiple communication apps over an IP network or the internet, removing the need to retain ISDN services. 

SIP Trunking

Reliable, flexible, cost-effective Voice Solution

SIP Trunking connects your customers' premises directly to the Public Telephone Network (PSTN) via their business broadband, fibre or ethernet connection, using Voice over IP. Using SIP means your customers can make and receive calls without needing to completely replace their legacy PBX. 

Reduce Costs

Use SIP Trunks to reduce your customers ISDN connections, call and PBX maintenance costs  

Future Proof

There’s no need for customers to replace their existing phone systems, making it an ideal, low-cost replacement for ISDN.

Business Continuity built in

In case of emergencies, customers will not miss a call with automatic call diverts and rerouting.    


Fraud management features and call spend limits allow customers to stay in control  


When your customers scale up operations or move premises, they don’t need to change your phone numbers  

What Our Partners Say...

The wonderful thing about i-Bill is that it just works – and works well. We haven’t even thought about jumping ship to another billing provider.

Simon Gale, Director and Joint Owner, Cactus Business Solutions

It was a great feeling when one of my biggest customers commented on how great the iBill platform was and mentioned how professional and robust it was using the portal.

Tom Cremore, Co-founder, MT Voice and Data

Supported by the team at Chess, the operational billing transition of recent acquisitions has been seamless. We have kept churn to less than 1%.

Ram Moetamedi, Managing Director, UK IT Networks