Xcomm is a supplier on Crown Commercial Service’s (CCS) Network Services 3 (RM6116) Framework Lot4a (Analogue Telephony) to the public sector

Working with the Public Sector

Xcomm works with a range of public sector organisations including the NHS, UK Health Security Agency (Formerly PHE) and government departments providing unified communications, network services and security solutions.


Xcomm is a supplier on Crown Commercial Service’s (CCS) Network Services 3 (RM6116) Framework Lot4a for the supply of Analogue Telephony including connecting analogue telephony equipment with the public switched telephone network including voice connectivity, voice call packages, SIP (Session initiation protocol) trunks, DDI (Direct dialling in) number ranges, equipment maintenance and support for legacy telephony estates.

This makes us a trusted supplier of UK network services for public organisations.

The scope of the framework includes:

  • design, survey, build, management, support and maintenance services including transformation to IP telephony and equipment adaptation
  • adaptor/ convertor for internet protocol connection
  • voice call packages (including voice minutes, volume packages)
  • direct dial in (DDI) ranges
  • end user devices
  • SIP trunking
  • the transitioning from existing legacy equipment estates into a new solution

IP telephony

Xcomm’s Hosted IP Telephony converts voice into data, allowing business calls to be sent and received via an internet connection rather than traditional telephone and ISDN lines.

Xcomm’s Hosted IP Telephony offers a number of advantages for all public sector organisations including:-

  • Significant savings in terms of reduced telecommunications infrastructure cost, monthly recurring fees and call charges
  • Excellent, reliable voice quality.
  • Increased flexibility and scalability.
  • Powerful functionality to increase business efficiency and enhance customer service.
  • Enterprise-class technology to connect satellite offices and homeworkers but with significant cost savings when compared to similar solutions using traditional phone systems.
  • Hosted in Xcomm data centres significantly reducing loss of service due to power outages

Hosted IP PBX phone systems have many benefits for public sector organisations of all sizes. A cloud- based system has all the functionality of a proprietary phone system such as call recording, hunt groups and call attendant but without the drain on IT resources.

SIP Trunking

SIP trunks are the perfect transition to IP-based calls using an existing system, without jumping to a full Hosted telephony solution . With SIP many existing systems can have a software or hardware upgrade to make use of SIP channels instead of telephone lines.

They’re a more flexible, lower cost alternative to ISDN and PSTN lines for outbound and inbound voice calls connecting a PBX to the PSTN. As well as offering significant savings it is also quicker to install and provision and offers the flexibility and reliability today’s public sector organisations have come to expect.

Xcomm provides a number of SIP trunk solutions, either via its SIP Trunk Plus platform, or directly via the Xcomm Hosted IP Telephony service.

Make the change now

In the next couple of years the UK’s telecoms networks will change massively, with BT shutting down its traditional phone lines in favour of internet-based systems.

BT will not provide ISDN and PSTN services in the UK past December 2025, pushing for all its business customers to make the move to VoIP and SIP solutions. After the switch off, all PSTN and ISDN services will cease to operate and there will be no maintenance available. BT has already stopped selling ISDN services and is doing the same for PSTN lines, meaning you can’t upgrade any existing services using traditional phone lines.

As part of this transition from legacy systems to an Internet service, upgrading your current legacy hardware, including PBX’s, may also be something to consider. Many older phone systems in businesses today will need to be either replaced, upgraded or have additional components added to them to allow them to continue working over new IP Telephony lines (SIP Trunks).

Crown Commercial Services

Crown Commercial Service supports the public sector to achieve maximum commercial value when procuring common goods and services. In 2021/22, CCS helped the public sector to achieve commercial benefits equal to £2.8 billion – supporting world-class public services that offer best value for taxpayers.

Guidance from the X.COMM experts

The X.COMM team are experts in the network services field. We have a whole range of solutions to meet the needs of all public sector businesses. So why not take advantage of the ultimate in telecommunications solutions and embrace this change NOW.

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