Dedicated Internet Access (DIA) for UK Businesses

Dedicated Internet Access provides an uncontended, private circuit exclusively for your organisation, whereas broadband shares bandwidth with other users on the same exchange. DIA guarantees symmetric upload and download speeds and comes with a financially-backed SLA. The UK broadband average download speed is 69.4 Mbps (Ofcom Connected Nations 2024), but DIA delivers consistent, guaranteed throughput regardless of peak times.

A 1:1 contention ratio means the bandwidth is exclusively yours — no other business shares your circuit. Standard broadband typically operates at contention ratios of up to 50:1, meaning speeds drop during busy periods. With DIA, if you pay for 100 Mbps, you receive 100 Mbps at all times. This is essential for latency-sensitive applications such as VoIP, video conferencing, and cloud platforms.

A leased line typically delivers 99.99% uptime SLA (industry standard), with fix-time commitments usually ranging from four to six hours for critical faults. AMVIA's DIA contracts include proactive monitoring, automatic fault reporting, and an assigned engineer for rapid resolution. Financial credits apply if the provider fails to meet the agreed service levels.

Symmetric speeds give you identical upload and download bandwidth, which is critical for cloud backups, sending large files, VoIP, and video conferencing. Standard broadband typically offers upload speeds far lower than download — often only 10–20% of the headline figure. Businesses relying on Microsoft 365, hosted servers, or real-time collaboration benefit significantly from symmetric DIA connections.

DIA installation typically takes 45 to 90 working days, depending on whether existing fibre infrastructure reaches your premises. If a new fibre path is required, wayleave agreements and civils work may extend the timeline. AMVIA manages the entire provisioning process, provides regular updates, and can arrange temporary 4G/5G connectivity to bridge the gap while your DIA circuit is installed.