What is SIP Trunking?
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.
How resilient is SIP trunking?
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.
The benefits of SIP Trunks
∙ Save money on call costs and line rental
SIP offers a more reliable, cost-effective connectivity than ISDN over an IP connection. Save up to 25% or more on call costs and 50% on line rentals.
∙ Free internal calls and great features
Perfect for any business with multiple sites, not only saving on your line rental and call costs, but offering free internal calls within your company; along with a host of great features.
∙ Scale up and down when you want
SIP trunks are ideal if you are moving, downsizing or upsizing and want to keep existing phone numbers. Scale up during busy periods and down again afterwards. You can add lines, take them away, split calls at any time. You are in control.
∙ Built-in Business Continuity
SIP trunks can handle emergencies easily and are ideal for disaster recovery / a business continuity plan. Re-route calls to an alternative location quickly and easily.