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SIP Trunking with Chess Partner

We’ve taken the time to find our Partners the most suitable SIP products that will allow you to offer the best solution for your customers.


What is SIP Trunking?

SIP Trunking (Session Initiation Protocol) is a way of providing telephone calls using data rather than fixed lines. Using SIP provides the ability to make and receive calls using IP technology without needing to completely replace your legacy PBX.

With greater flexibility and resilience, it optimises your data connection, so you have one line for both voice calls and your internet. With SIP, you’ll get the benefits of a hosted voice solution on the existing phone system you’ve already got in place.



What are the key benefits of SIP Trunking?

Cost savings – Use SIP Trunks to reduce your ISDN connections in addition to call cost savings and maintenance costs of your PBXs.

Minimises disruption – There’s no need to replace your existing phone system, so it becomes an ideal, low-cost replacement for ISDN

Business Continuity – With automatic call diverts you’ll never miss a call

Security – Fraud management and call-spend limits allow you to stay in complete control

Flexibility – If you’re scaling up operations or moving premises, you don’t need to change your phone numbers

Why should my Customers consider SIP?

Businesses continue to use and rely on their PBX and ISDN to facilitate their calls. ISDN is an ageing technology and BT plan to switch off the ISDN network completely in 2025. SIP trunking is a lower cost per channel than ISDN, it allows the customer to use both non-geographic and geographic numbers on the same solution and allows them to continue to use their existing PBX and handsets.

There is an abundance of cheaper and versatile options now widely available as alternatives, and many businesses have already made the switch to SIP trunking and other IP telephony solutions.

If your customers are hesitant to take the leap and adopt a fully hosted voice solution, then SIP Trunking can be a suitable alternative to help transition them towards IP telephony and the Cloud.


How does it work with Number Manager?

Our SIP trunking solution is fully integrated with our existing Inbound Call Management Portal - Number Manager, so you can be confident you’re offering the best solutions to your new and existing customers.

This gives the user access to a range of call management functions such as:

  • IVR Auto Attendant
  • Call queuing
  • Hunt groups
  • Ratio Call Plan
  • Pre-Connection greetings
  • Agent Ready

Easily manage the above through a simple and intuitive app and control outbound call settings and reporting - all in one place.


Discover our SIP Trunking Resources


If you want to find out more on SIP Trunks and solutions from Chess Partner, get in touch with your BDM or email



Chess is one of the UK’s leading independent and trusted technology service providers, employing 300 skilled people across the UK, supporting over 20,000 organisations.

 By leveraging world-class technology, Chess helps you to connect your people, protect your data, grow your business, reduce your costs and work better together, which means your business, your people and your customers can thrive.

At Chess, we’re passionate about our unique culture and our continuous investment in our people to be industry experts. We’re extremely proud that our people voted us No.1 in ‘The Sunday Times 100 Best Companies to Work for’ list 2018, and we continue to celebrate more than ten years in the top 100.

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