SIP trunking is the fastest-growing telephony service in the UK and we are one of the UK’s leading SIP trunking providers. We connect your site directly into our network via an IP connection to carry all your voice calls and data. SIP Trunks provide a powerful alternative to ISDN and are compatible with all the leading IP PBX brands in the market, giving you peace of mind that your PBX hardware not only works with our network service but is now future proof.
Session Initiation Protocol (SIP) trunking is a service that uses the protocol to provision voice over IP (VoIP) connectivity between an on-premises phone system and the public switched telephone network (PSTN). SIP trunks offer a more flexible and lower cost alternative to ISDN for inbound and outbound voice calls.
SIP trunks are a service utilised by thousands of UK organisations, which is testimony to the reliability of SIP. For added reassurance when switching to us, SIP trunking can even be used with existing ISDN connections to ensure the transition goes smoothly.