CallataGuidesBusiness phone system for computer systems design services firms in Durham, NC
Computer systems design services firms in the Durham-Chapel Hill, NC metro area: 133 establishments in 2023, the local area codes, and what phone service costs a 40-person team.
- Establishments
- 133CBP 2023
- Employees
- 5,309mid-March 2023
- Per 100k residents
- 21.4U.S. 17.1
- Rank
- 58th of 577areas by count
How many computer systems design services firms are in Durham, NC?
County Business Patterns counts 133 computer systems design services firms (NAICS 541512, Computer Systems Design Services) in the Durham-Chapel Hill, NC metro area for 2023. Together they reported 5,309 mid-March employees and $745.3 million of payroll for the year. That ranks 58th of the 577 metro and micropolitan areas where Census published a count for this industry.
With 621,000 residents in the Census 2024 estimate, that is 21.4 computer systems design services firms per 100,000 people, 25.4% above the national rate of 17.1. Establishments average 39.9 employees, 202.8% above the U.S. average of 13.2. Payroll per employee comes to $140,379, 14.9% above the national $122,171.
| Measure | Durham, NC | North Carolina | United States |
|---|---|---|---|
| Establishments | 133 | 1,947 | 58,113 |
| Mid-March employees | 5,309 (moderate noise) | 18,673 | 766,160 |
| Annual payroll | $745,273,000 (moderate noise) | $2,090,450,000 | $93,602,442,000 |
| Employees per establishment | 39.9 | 9.6 | 13.2 |
| Payroll per employee | $140,379 | $111,950 | $122,171 |
| Establishments per 100,000 residents | 21.4 | 17.6 | 17.1 |
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.
Establishment size: computer systems design services firms in Durham, NC
Of the computer systems design services firms in Durham, NC that had employees in March 2023, 69.0% had fewer than five (the U.S. share is 74.5%). 84.1% had fewer than ten. Small teams usually share the phone: the person who answers is often also serving a customer or doing the job, which is when calls get missed.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 87 | 69.0% | 74.5% |
| 5–9 employees | 19 | 15.1% | 9.7% |
| 10–19 employees | 10 | 7.9% | 6.5% |
| 20–49 employees | 10 | 7.9% | 5.0% |
| 50 or more employees | 0 | 0.0% | 4.4% |
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.
What computer systems design services firms in Durham, NC use the phone for
Managed IT and systems integration firms field support calls that range from a forgotten password to a server outage. Clients judge them by how quickly someone answers when something breaks.
Typical inbound and outbound calls for computer systems design services firms in Durham, NC:
- A prospect calls to ask about managed IT.
- A vendor calls about a hardware order.
- A user calls to reset a password.
When nobody can pick up
Outages do not keep business hours, so routing urgent after-hours calls to an on-call technician is common.
Business-hours routing in Callata sends calls to voicemail, a teammate's cell or an AI agent once the day ends, and voicemails arrive transcribed with an urgency flag.
Phone system pricing for a 40-person IT services firm
The average IT services firm in Durham, NC has 39.9 employees, so a 40-person team is a reasonable benchmark. Priced per seat, 40 users would run $1,200.00 a month on RingCentral RingEX Core and $998.00 on Ooma Office Pro (month-to-month list prices, checked September 28, 2026). On Callata the same 40 people cost $799.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $4,812. Some vendors discount annual contracts; the table shows month-to-month prices.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $799.00 | $9,588.00 |
| Quo (Starter) | $19.00 per user | $760.00 | $9,120.00 |
| Nextiva (Core) | $23.00 per user | $920.00 | $11,040.00 |
| Ooma (Office Pro) | $24.95 per user | $998.00 | $11,976.00 |
| Dialpad (Standard) | $27.00 per user | $1,080.00 | $12,960.00 |
| RingCentral (RingEX Core) | $30.00 per user | $1,200.00 | $14,400.00 |
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.
Local area codes for computer systems design services firms in Durham, NC
NANPA records place the exchanges of the area's named cities and towns in 4 area codes. 919 has the most, with 226 of 313 exchanges (72%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your clients recognize, subject to carrier inventory, or port the number you already have for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 919 | 226 | Eastern | 1954 | 984 |
| 984 | 73 | Eastern | 2012 | 919 |
| 336 | 13 | Eastern | 1997 | 743 |
| 743 | 1 | Eastern | 2016 | 336 |
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.
How Callata works for computer systems design services firms
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
If you already have a number in Durham, NC, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
Frequently asked questions
How many computer systems design services firms are there in Durham, NC?
Census County Business Patterns counted 133 computer systems design services firms in the Durham-Chapel Hill, NC metro area in 2023. They employed 5,309 people in mid-March.
What does a business phone system cost for a 40-person IT services firm?
At month-to-month list prices checked September 28, 2026, 40 users cost $1,200.00 a month on RingCentral RingEX Core and $998.00 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $799.00.
What area code should an IT services firm in Durham, NC use?
Area code 919 has the most assigned exchanges among the area's named places, followed by 984 and 336. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for an IT services firm?
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.