CallataGuidesBusiness phone system for security systems services in Charleston, SC
Security systems services in the Charleston-North Charleston, SC metro area: 22 establishments in 2023, the local area codes, and what phone service costs a 25-person team.
- Establishments
- 22CBP 2023
- Employees
- 539mid-March 2023
- Per 100k residents
- 2.5U.S. 2.1
- Rank
- 65th of 298areas by count
Security systems services in Charleston, SC by the numbers
The Census Bureau's 2023 County Business Patterns lists 22 establishments classified as Security Systems Services (except Locksmiths) (NAICS 561621) in the Charleston-North Charleston, SC metro area. They employed 539 people in mid-March and paid $37.3 million in annual payroll. By establishment count the area is 65th out of 298 areas with published figures for security systems services.
Measured against its 870,000 residents (2024 estimate), the area has 2.5 security systems services per 100,000 people; the U.S. rate is 2.1, so Charleston, SC is 20.3% above the national figure. The average establishment here has 24.5 employees, compared with 18.0 nationally. Payroll per employee comes to $69,163, in line with the national $70,074.
| Measure | Charleston, SC | South Carolina | United States |
|---|---|---|---|
| Establishments | 22 | 143 | 7,151 |
| Mid-March employees | 539 (moderate noise) | 2,037 | 128,462 |
| Annual payroll | $37,279,000 (moderate noise) | $153,493,000 | $9,001,839,000 |
| Employees per establishment | 24.5 | 14.2 | 18.0 |
| Payroll per employee | $69,163 | $75,352 | $70,074 |
| Establishments per 100,000 residents | 2.5 | 2.6 | 2.1 |
Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.
How big security systems services in Charleston, SC are
Of the security systems services in Charleston, SC that had employees in March 2023, 15.0% had fewer than five (the U.S. share is 48.4%). 40.0% had fewer than ten. For a business of a few people, phone coverage is a staffing question as much as a technology one: someone has to be free to pick up, or the call needs somewhere sensible to go.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 3 | 15.0% | 48.4% |
| 5–9 employees | 5 | 25.0% | 19.3% |
| 10–19 employees | 4 | 20.0% | 13.9% |
| 20–49 employees | 8 | 40.0% | 11.1% |
| 50 or more employees | 0 | 0.0% | 7.3% |
Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.
Calls a security systems company in Charleston, SC has to catch
Security companies take calls about new installations, alarms and service problems. Existing customers expect quick help when a system misbehaves.
A few of the calls that come in to security systems services in Charleston, SC:
- A builder calls about pre-wiring.
- A customer calls to add a user code.
- A business calls about a faulty alarm panel.
Business texting for security systems services
Companies text appointment confirmations and service updates.
Because carriers require registration for business texting from local numbers, Callata files a 10DLC registration for a one-time $49; after approval, anyone on the team can reply from the business number.
Callata vs. per-seat pricing for security systems services in Charleston, SC
The average security systems company in Charleston, SC has 24.5 employees, so a 25-person team is a reasonable benchmark. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 25 users on RingCentral RingEX Core cost $750.00 a month and 25 on Ooma Office Pro cost $623.75. Callata comes to $499.00 a month for 25 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $3,012 less than RingCentral for a security systems company in Charleston, SC of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $499.00 | $5,988.00 |
| Quo (Starter) | $19.00 per user | $475.00 | $5,700.00 |
| Nextiva (Core) | $23.00 per user | $575.00 | $6,900.00 |
| Ooma (Office Pro) | $24.95 per user | $623.75 | $7,485.00 |
| Dialpad (Standard) | $27.00 per user | $675.00 | $8,100.00 |
| RingCentral (RingEX Core) | $30.00 per user | $750.00 | $9,000.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Getting a local number in Charleston, SC
NANPA records place the exchanges of the area's named cities and towns in 2 area codes. 843 has the most, with 267 of 330 exchanges (81%). A local number lets customers in Charleston, SC call without dialing out of area. Callata includes up to 3 local numbers, and which numbers are open in an area code depends on carrier inventory when you choose.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 843 | 267 | Eastern | 1998 | 854 |
| 854 | 63 | Eastern | 2015 | 843 |
Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.
What security systems services in Charleston, SC get with Callata
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
Porting a number you already use in Charleston, SC is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.
AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.
Frequently asked questions
How many security systems services are there in Charleston, SC?
Census County Business Patterns counted 22 security systems services in the Charleston-North Charleston, SC metro area in 2023. They employed 539 people in mid-March.
What does a business phone system cost for a 25-person security systems company?
At month-to-month list prices checked September 28, 2026, 25 users cost $750.00 a month on RingCentral RingEX Core and $623.75 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $499.00.
What area code should a security systems company in Charleston, SC use?
Area code 843 has the most assigned exchanges among the area's named places, followed by 854. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for a security systems company?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute.