[Glossary](https://telxpress.com/glossary/) / Connectivity # Dedicated internet access **Dedicated internet access** (DIA) is a business internet service whose full bandwidth is reserved for one customer, with a service-level agreement for uptime, latency and repair time, unlike shared broadband. - Connectivity - Updated October 11, 2026 - Written by the Telxpress advisory team 01 In depth ## What it is, why it matters and *what to ask a vendor* Broadband services share capacity among many customers, so speeds vary with the neighborhood and support is best effort. Dedicated internet access gives one customer a fixed, symmetrical circuit, usually fiber, with a contract that specifies availability, latency, packet loss and how quickly faults are repaired, and credits when the carrier misses them. For a growing business the trade is cost against predictability. Cloud phones, video meetings, AI agents and card payments all suffer when a shared connection slows at busy times, and the repair clock on broadband can run for days. DIA is usually paired with a cheaper secondary connection for failover rather than bought in pairs. Ask for the service-level agreement in writing: guaranteed uptime, latency and loss, mean time to repair, and how credits are claimed. Ask whether the price includes the router, what the install interval and construction costs are, and whether the carrier can also deliver the backup over a separate path. Ask who you call late at night. 02 Related terms ## Terms that usually come up *alongside it* - Connectivity ### [Fixed wireless](https://telxpress.com/glossary/fixed-wireless/) Fixed wireless is business internet delivered by a radio link between an antenna on your building and a nearby tower or base station, used where fiber is unavailable or as an independent backup connection. - Connectivity ### [SD-WAN](https://telxpress.com/glossary/sd-wan/) SD-WAN (software-defined wide area network) is a service that combines two or more internet connections at a site, steers each application over the best path and fails over automatically when one connection degrades. - Connectivity ### [Failover](https://telxpress.com/glossary/failover/) Failover is the automatic switch to a backup connection, device or route when the primary one fails, so that phones, payments and cloud applications keep working through an internet or equipment outage. - Network ### [Latency](https://telxpress.com/glossary/latency/) Latency is the time a packet takes to travel from one end of a connection to the other; on a phone or video call, high latency makes people talk over each other and pause awkwardly. 03 At Telxpress ## Where this shows up *at Telxpress* The pages and articles where this term does real work: what we advise, build and support. - Page ### [Business Internet, Fiber, SD-WAN & Wi-Fi](https://telxpress.com/solutions/business-technology/connectivity/) Business internet, fiber, SD-WAN, Wi-Fi and carrier services for Orange County offices, selected and managed by one local partner with 24/7 support. - Page ### [Business Networking, Firewalls & Managed Wi-Fi](https://telxpress.com/solutions/business-technology/networking/) Switching, routing, Fortinet firewalls, Ubiquiti and Cisco Meraki Wi-Fi and managed network services for offices that depend on reliable connections. - Page ### [Book a Free AI Readiness Consultation](https://telxpress.com/book/) Pick a weekday and a morning or afternoon slot for a free 30-minute AI readiness consultation. Leave with three AI opportunities for your business. Next step ## Want This Applied *to Your Business?* Book a free 30-minute AI readiness consultation. You'll leave with three AI opportunities specific to your business, whether you work with us or not. [Book My Free Consultation](https://telxpress.com/book/) [Take the Free AI Readiness Assessment](https://telxpress.com/ai-readiness/) [Or call 24/7: (949) 861-4500](tel:+19498614500) Last reviewed: October 11, 2026. Published by Telxpress, Irvine, CA.