SIP trunks are replacing the aging UK ISDN network. SIP calls are either delivered to the Cloud solution and calls routed to site or routed directly to the on premise solution utilising an internet connection. Compared to ISDN, SIP delivers enhanced failover options, the ability to increase or decrease capacity easily and from a marketing prospective acquiring numbers or business’s allows for easier integration into your network. Additional cost savings may also be achieved through lower monthly rentals and where appropriate call bundles. Law-Call can support SIP trunks from multiple carriers for best call rates/bundles or Business Continuity reasons. Deploying either multiple on-premise servers or Cloud/Hybrid allows SIP trunks to fail over to alternate locations.