Our SIP Trunking Service utilises the latest technology to connect IP or legacy digital PBX's to the core network. Customer calls are carried as VoIP through an IP data infrastructure.

SIP trunks offer a viable alternative to ISDN connectivity to the PSTN, taking a step towards transitioning to a converged networking strategy. Utilising SIP trunks will lower telephony costs in comparison to fixed ISDN lines, it has minimal infrastructure costs and importantly, can increase resilience in the event of any network issues.

This gives your organisation the power to communicate over IP in and outside the organisation. It facilitates the connection of a private branch exchange (PBX) to the Internet, by replacing your traditional fixed PSTN lines with PSTN connectivity via SIP Trunking. It also removes geographic constraints, allowing you to publish local numbers around the UK without having to pay diversion charges back to the main office. Calls are then mapped to the IP interconnect for onward routing via SIP trunks.

By working closely with you at each stage, we can help you realise the benefits of SIP Trunking. We'll assess your readiness for SIP, define the phasing of a deployment plan that ensures maximum success and use our experience to deliver a smooth transition and migration of your legacy PBX.

We can supply:

  • New telephone numbers – geographic or non-geographic
  • Managed ISDN to SIP converter
  • Quality of Service enabled network
  • Session Border Controllers
  • Significant cost savings on long distance calls
  • Fraud management
  • Disaster recovery protection opportunities
Unprecedented Support as a Fully Managed Service

Unlike other SIP trunking solutions on the market, CORETX's SIPPort offers the option of a fully managed service over a private network with end-to-end support. By installing a SIPPort Exchange on site, CORETX can manage both ends of the trunk rather than just supplying call termination.

Our SIPPort can be provided as a managed service or as a wires only solution, to learn more about these options follow these links: