--- title: "Business internet: upload, a second line and the carrier's SLA" description: "Why fast fibre feels slow in the office, when a second line pays off and which clauses to demand from your internet provider. No-obligation proposal." language: en url: https://www.dataroad-it.com/en/business-internet-upload-redundancy-sla/ source: https://www.dataroad-it.com/en/business-internet-upload-redundancy-sla/ publisher: DataRoad IT (DataRoad - IT Services and Consulting), Portugal --- > Why fast fibre feels slow in the office, when a second line pays off and which clauses to demand from your internet provider. No-obligation proposal. # Business internet: upload, a second line and the carrier's SLA At a glance For decision-makers short on time. - 01 Business slowness almost always comes from the upload channel, not download speed. - 02 A second line from another operator and technology beats doubling the speed. - 03 Demand a static IP, a repair deadline, guaranteed availability and a router in bridge mode. - 04 Prioritising voice and video on the firewall fixes many issues at no extra cost. ### In this article An hour without internet leaves a company without email, without cloud, without remote access and, with VoIP, without a phone. That cost is rarely solved with a faster plan. **Business internet** that does not fail rests on three decisions: enough upload, a second connection from another operator and a contract with a static IP and an SLA. This guide shows how to decide with data, not with the number in the advert. ## Why is the internet "slow" on fast fibre? Almost always because of the upload direction. Video calls, cloud backups, folder sync, remote workers' access and VoIP calls all use the same sending channel. On a highly asymmetric line, that channel fills up while the download figure still looks great on the speed test. Users feel the slowdown, but the congestion exists in one direction only. **The most common pattern:** online meetings get worse every day at the same time. It is the time when backups upload to the cloud. The cure is to prioritise voice and video and reschedule the backups, without touching the speed. ## What separates a business connection from a home one? - **Guaranteed capacity** Residential packages rely on not all customers using the line at once; business ones deliver more predictable throughput at critical times. - **Balance between directions** Home offers favour download; a business needs upload. - **Static IP address** Essential for VPN, mail servers and cameras viewed from outside. - **Repair with a deadline** Written into the contract, instead of the general fault queue. - **Dedicated technical support** With escalation, far from the consumer call centre. ## More speed or a second line? A second line, in almost every case. The loss from one outage quickly exceeds the difference in monthly fee between plans. | Rule | Why | | --- | --- | | Different operators | Two lines from the same operator often share the same infrastructure and fail at the same time | | Different technologies | Primary fibre and mobile backup survive a cable cut in the street; two fibres may not | | Automatic failover | Nobody should have to swap cables when the line goes down | | Annual test | An untested backup is a hypothesis; simulate the failure at an agreed time | ## How do you size the right connection? By real use at peak time, not by a round number. - **Simultaneous video meetings**: the heaviest load and the most sensitive to fluctuations. - **Data sent to the cloud**: how much and when. - **Remote users**: how many and which systems they connect to. - **Voice over IP**: little bandwidth, high demands on stability and priority. - **CCTV with external access**: a constant upload of footage. The calculation often shows that the current speed is enough. What is missing is **quality of service on the internal network**, configured on the firewall, so voice and video jump ahead of backups. It costs nothing extra from the operator. ## Which clauses must the operator contract include? - **Static IPs** More than one when services are published. - **Repair deadline** With compensation if it is missed. - **Availability** With a guaranteed value, measured and reported. - **Business technical line** With real escalation. - **Router in bridge mode** So the [company's managed firewall](https://www.dataroad-it.com/en/managed-firewall-services-portugal/) takes over routing and security. Moving office? Check fibre coverage before signing the lease. Bringing fibre to a building without it can take months and is often the longest lead time of the entire move. ## Who handles this for you? DataRoad sizes and manages connections and [business network infrastructure](https://www.dataroad-it.com/en/structured-cabling-installation/): redundancy across operators, automatic failover and traffic priority for voice and video. Request a no-commitment proposal. **More than 10 workstations · support contract · remote, on-site and telephone support.** Call **+351 211 459 950 *** or write to sales@dataroad.pt. **Call to a Portuguese landline.* Chosen by respected and international companies ★★★★★ 5,0 · 52 Google reviews ★★★★★ 5,0 · 52 Google reviews DataRoad ## Related articles [Networks and cablingManaged SD-WAN: multiple stores and offices without outagesA store without internet cannot sell or invoice. 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