Dedicated Internet Access vs. Business Broadband
Business cable is cheaper per megabit and genuinely fine for some sites. Here's how to tell whether yours is one of them, and what you're actually buying with DIA.
By SilverStar Internet
Dedicated Internet Access, usually shortened to DIA, describes a business circuit where the bandwidth is reserved for one organization instead of shared across a pool of subscribers. That single design decision produces most of the differences that show up in daily operation.
A DIA circuit is symmetrical, so uploads match downloads, which matters for cloud backups, VoIP, video conferencing, VPN tunnels, and remote desktop. It is committed, so throughput does not sag when the businesses around you get busy at 2pm. It carries a service-level agreement with written targets for uptime, latency, packet loss, jitter, and mean time to repair, which means an outage triggers a contractual obligation rather than a place in a queue. And it typically includes static IP addressing, which hosted services, site-to-site VPNs, remote access, and firewall rules all need in order to anchor to something stable.
Shared business broadband gives up each of those in exchange for a much lower price per megabit. The honest answer is that for plenty of sites, that trade is correct. A satellite office where a few people check email and the worst case of an outage is an afternoon of inconvenience does not need a committed circuit or an SLA.
The trade stops working when downtime has a number attached to it. If an outage stops payment processing, halts a clinical workflow, strands a team that cannot work offline, or breaches a compliance obligation, then the relevant comparison is not the monthly cost difference between circuits. It is that difference against the cost of the hours you lose, and for most businesses that math resolves quickly.
The practical way to decide: write down what stops when the internet stops, and what an hour of that costs. If the answer is small, buy broadband and spend the savings elsewhere. If the answer is uncomfortable, you are looking at a continuity decision that happens to be sold as an internet circuit.