VoIP Providers & Business Phone Companies in South Dakota (SD)

How to choose VoIP providers in South Dakota

Where to find VoIP providers in South Dakota, from Sioux Falls to the Aberdeen area

Since July 1, 2024, the 911 surcharge on phone lines here has been $2.00 a month per line, and interconnected VoIP providers collect it just like the old phone company. Details like that make a South Dakota phone quote different from one written for Minnesota or Iowa, and a provider who works here regularly will get them right.

Sioux Falls is the largest city by a wide margin, and its metro area takes in Minnehaha, Lincoln, Turner and McCook counties. Buyers in Sioux Falls have the most choice, including integrators who set up call centers, clinics and multi-site offices. Rapid City anchors the second metro, out in the Black Hills on Mountain time, which matters if your provider's help desk keeps Central hours. After those two, city size drops off fast: Aberdeen, Brookings and Watertown come next.

A lot of the state's phone service still comes from rural telephone cooperatives and independent telcos that have added hosted VoIP to their fiber networks. You can see that in the northeast, where providers serve Aberdeen and small Brown County towns such as Groton, Bath, Stratford and Houghton. In the capital, Pierre, there is a smaller pool of local firms. Elsewhere, expect a regional company covering several counties or a national provider working remotely.

How the South Dakota 911 surcharge and E911 rules affect a VoIP quote

The surcharge is set by state law (SDCL 34-45-4). Providers collect it for the South Dakota Department of Revenue. Three points from the department's guidance matter to a business buyer:

  • Lines are counted by simultaneous calls. On a multi-station system, the number of billable lines equals the number of calls that can reach the public phone network at the same time. A 40-seat office running 10 call paths should be charged for 10, not 40.
  • There is a cap. The surcharge can't be applied to more than 100 lines per customer account per month.
  • Itemizing changes the tax. An itemized surcharge is not subject to sales tax. Folded into the price, it is.

Federal rules sit on top of this. Kari's Law requires multi-line systems to let anyone dial 911 directly, with no "9" first, and to alert someone such as a front desk when a 911 call goes out. RAY BAUM's Act requires the call to carry a dispatchable location: a street address plus floor or suite where needed. Ask how each phone's location is registered and who updates it when staff work from home. With the distances in this state, a call that reaches the wrong county's dispatch center loses real minutes.

Sales tax, PUC oversight and call recording rules for South Dakota phone systems

Telecommunications service that starts or ends in South Dakota and is billed to an address here is subject to the 4.2% state sales tax plus municipal sales tax, which runs 1 to 2% depending on the city. A per-seat price alone is incomplete. Ask for a sample invoice with every line filled in: state and city tax, the 911 surcharge, federal Universal Service Fund recovery and any relay or TDD fee. Rates have changed recently, so confirm current figures with the Department of Revenue before you sign.

The South Dakota Public Utilities Commission certifies local exchange carriers, and some hosted VoIP companies have told the commission that their nomadic service does not need that certificate. In practice, the provider you pick may sit outside the PUC's usual oversight, so the contract is your main protection.

On recording, South Dakota is a one-party consent state under SDCL 23A-35A-20. Someone who is on the call, or has the consent of a person on it, can record. Calls with customers in all-party consent states are another matter, so many firms here play a recording notice on every call. Check that the system can do that and can switch recording on or off by queue or extension.

How to compare local and national VoIP providers in South Dakota

Start with your internet connection. Much of rural South Dakota now has fiber from local telcos and co-ops, but some sites still depend on fixed wireless or older copper. A good provider will test bandwidth and latency at your site before quoting and tell you plainly if you need a backup connection.

Questions to put to every provider on your shortlist:

  • Who installs the phones, and who comes on site if a handset or switch fails? How far away are they?
  • What are your support hours, and in which time zone?
  • Can we keep our 605 numbers, and how long will porting take?
  • What happens to our calls during an internet or power outage?
  • Can you give us two references from businesses our size in this part of the state?

Local providers win on site visits, especially in January, when a technician three hours away might as well be in another state. National platforms often have better apps and lower prices for very small offices. Some local firms resell a national platform and add their own installation and support, which can give you both. Ask references about their last outage.

On contracts, look for auto-renewal clauses, early termination fees tied to leased handsets and any right to raise prices mid-term. If your headcount may change, a shorter term usually beats a lower monthly rate.