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Phone systems that stay up, and a real person to call when something needs to change
Hiscall designs, installs and supports unified communications for businesses nationwide, from cloud and premise-based VoIP to SIP trunking and traditional dial tone. Unlimited moves, adds and changes on Hiscall cloud agreements, usually handled the same day.
What's included
- Cloud VoIP
- Sized to your business
- Premise-based VoIP
- On-site systems
- SIP trunking
- & traditional dial tone
- Moves, adds & changes
- Unlimited, on contract
- Support
- 24/7 on contract
1995Year founded
2service centers
18Industries served
25+Technology partners
24/7Certified staff on call
Experience30 years, since 1995
OptionsCloud, premise & SIP
ChangesUnlimited, no per-ticket fee
Support24/7/365, Midsouth based
A phone system is infrastructure, not a feature list. When a line goes down, a receptionist can't answer, a clinic can't take appointments, or a warehouse can't reach a driver. Hiscall scopes phone systems around what actually has to keep working, whether that's a single cloud extension or a multi-site SIP deployment, and backs it with technicians who pick up the phone themselves. Some vendors call this unified communications. We call it a phone system that works, with someone who answers when it doesn't.
Why one team
What actually changes when your phone vendor is also your network vendor
Voice quality depends on the network underneath it. Here's what that looks like split across vendors versus handled by one.
| Where it counts | Hiscall | Separate phone vendor |
|---|---|---|
| Moves, adds & changes | Unlimited, no per-ticket fee | Billed per request |
| Network quality | Planned in from day one | Discovered as a problem after install |
| Support calls | A Hiscall employee who knows your setup | A ticket queue |
| Analog transition | Handled alongside your cabling | A separate project, a separate vendor |
| Everything else | Cabling, cameras, AV, IT, all included | Another vendor, another contract |
What we install
Three ways to get dial tone, scoped to what your business actually needs.
- Cloud and premise-based VoIP. Sized to the building, not sold as a one-size-fits-all package. Cloud agreements include unlimited moves, adds and changes.
- SIP trunking and dial tone. Including support for facilities still transitioning off analog POTS lines, on the timeline that works for you rather than a carrier's cutoff date.
- Unlimited moves, adds and changes. On contract, with no per-ticket fee. New hire needs an extension moved? It's handled the same day, not queued behind a ticket.
New page
See the four cloud plans →
See the four Hiscall cloud phone plans in detail, with what's included at each tier.
What else we install
The other systems in your building, from the same team
Most of our phone system projects sit alongside cabling, cameras or a network refresh we're already handling.
Security Solutions
Video surveillance, access control and ID badge printing under Tennessee CCTV License #1405.
Security Solutions →Network Cabling
Copper and fiber infrastructure, paging, intercom, nurse call and clock systems, installed by BICSI-certified technicians.
Network Cabling →IT Services & Data Networking
Network infrastructure, wireless and ongoing IT support from the same team that wired the building.
IT & Data Networking →Audio Visual
Conference and training room AV, video conferencing, digital signage and sound masking.
Audio Visual →How we work
Five steps, and you know who to call at each one
Step 01
Survey
We come to you at no charge, look at what's already in place, and tell you honestly what should be replaced and what has life left in it.
Step 02
Design
You get a documented scope and clear pricing, with call volume and network capacity accounted for up front.
Step 03
Install
Installation is coordinated around your business hours rather than around us.
Step 04
Train
On-site sessions for staff so the new system is usable on day one, not a mystery menu tree.
Step 05
Support
You call us directly, not a queue, with 24/7/365 emergency response and unlimited moves, adds and changes.
A phone system is judged the one day it doesn't work. We design ours so that day doesn't come, and answer ourselves when it does.Hiscall, Inc.
Local technicians, coverage across the Midsouth and beyond
Two Tennessee offices put a certified Hiscall employee close by.
- Dickson. Corporate headquarters and 25,000 square foot distribution facility, serving Middle Tennessee and the Nashville region. Reach the Dickson office directly at (615) 740-7771.
- Knoxville. Branch office serving East Tennessee since 2001, with the same certified technicians and the same emergency response. Reach the Knoxville office directly at (865) 862-4650.
- You reach a person. You work directly with a trained, certified, Hiscall-badged employee, not a call center.
- Beyond our two offices. We also have employees based in West Tennessee and Kentucky, and we support customers throughout the Midsouth region and several nationwide.
Products & services
Explore the rest of what we install
Telecommunications You are here
Security Solutions
Network Cabling
IT & Data Networking
Audio Visual
All products & services →
Questions we hear
Frequently asked questions
Is cloud VoIP or a premise-based system the better fit for us?
It depends on your building, your internet reliability and how many locations you run. That's exactly what the free site survey is for, we'll give you a straight recommendation rather than pushing whichever system happens to be easier for us to sell.
We still have analog lines. Do we have to switch everything at once?
No. We support SIP trunking and dial tone for facilities still transitioning off analog POTS lines, and we can phase the switch on a timeline that works for your business rather than a carrier's cutoff date.
What counts as a "move, add or change," and is it really unlimited?
New extension, moved desk, updated call routing, new voicemail box, it's covered under your Hiscall cloud agreement with no per-ticket fee. Unlimited means unlimited.
Is the site survey really free?
Yes. We walk the building, document what's in place, and give you a scope and a price. There is no charge and no obligation to proceed.
Who answers when the phones go down at 2 a.m.?
A Hiscall employee. We're staffed 24 hours a day, seven days a week, 365 days a year for emergency response, and the technicians who answer are the ones who know your installation.
Tell us what your business needs.
We'll walk the building, look at what's already there, and give you a straight answer about what to replace and what to keep. No charge for the survey.