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Best Business Phone System Providers in Derby, CT (2026)

217 business phone system providers ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Derby: Blink Voice, IFR Score 62/100; 4.8★ from 312 Google reviews; open 7 days a week.

  2. 37

    Most-reviewed: Optimum, 961 Google reviews at 3.3★, the most of 217 ranked; ranked #37.

Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank

217 Derby business phone system providers are ranked here by IFR Score, from nine published factors. 113 open Saturdays and 90 open Sundays, based on posted hours. The median Google rating is 4.9★ across 217 rated IT firms.

Top 10 business phone system providers in Derby at a glance

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Top 10 business phone system providers in Derby at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Blink Voice624.8★ (312)Uniondale, 49 mi awaySat · Sun · EveningsOverall
2Total Wireless625.0★ (92)Bridgeport, 10 mi awaySat · Sun · Evenings—
3Axe Elite604.8★ (102)Wethersfield, 34 mi awaySat · Sun · Evenings—
4Total Wireless594.9★ (148)East Massapequa, 45 mi awaySat · Sun · Evenings—
5ASG Information Technologies584.9★ (111)Wallingford, 17 mi away——
6Boost Mobile584.4★ (52)Bridgeport, 9 mi awaySat · Sun · Evenings—
7Total Wireless574.8★ (27)New Haven, 8 mi awaySat · Sun · Evenings—
8Allied Communications LLC564.9★ (40)West Haven, 7 mi away——
9CCi Voice565.0★ (50)Danbury, 16 mi away——
10Advanced Hosted Services555.0★ (34)Bellmore, 45 mi awaySat · Sun · Evenings—

The 217 best business phone system providers in Derby, ranked

Ordered by IFR Score, a 0–100 score from nine published factors. Paid placement never changes the order.

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Scores below: based on 8 of 9 factors; recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Derby

    Based in Uniondale, 49 mi away

    62/100IFR Score

    Ranked #1 because of its Google rating and service focus: 4.8★ from 312 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.8★ from 312 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    70 Charles Lindbergh Blvd, Uniondale, NY 11553
  2. Based in Bridgeport, 10 mi away

    62/100IFR Score

    Ranked #2 because of its Google rating and service focus: 5.0★ from 92 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 92 Google reviews
    Hours
    Mon–Sat 10 AM–8 PM · Sun 11 AM–7 PM
    Address
    2511 Main St, Bridgeport, CT 06606
  3. Based in Wethersfield, 34 mi away

    60/100IFR Score

    Ranked #3 because of its Google rating and service focus: 4.8★ from 102 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.8★ from 102 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    936 Silas Deane Hwy Floor 1 & 2, Wethersfield, CT 06109
  4. Based in East Massapequa, 45 mi away

    59/100IFR Score

    Ranked #4 because of its Google rating and service focus: 4.9★ from 148 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.9★ from 148 Google reviews
    Hours
    Mon–Sat 10 AM–8 PM · Sun 11 AM–6 PM
    Address
    1023 Fulton St, Farmingdale, NY 11735
  5. Based in Bridgeport, 9 mi away

    58/100IFR Score

    Ranked #6 because of its Google rating and service focus: 4.4★ from 52 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.4★ from 52 Google reviews
    Hours
    Mon–Sat 10 AM–8 PM · Sun 11 AM–7 PM
    Address
    2177 Boston Ave, Bridgeport, CT 06610
  6. Based in New Haven, 8 mi away

    57/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.8★ from 27 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.8★ from 27 Google reviews
    Hours
    Mon–Sat 9 AM–7:30 PM · Sun 10 AM–5 PM
    Address
    206a Whalley Ave, New Haven, CT 06511
  7. Based in West Haven, 7 mi away

    56/100IFR Score

    Ranked #8 because of its Google rating and service focus: 4.9★ from 40 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.9★ from 40 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    375 Morgan Ln Ste 108, West Haven, CT 06516
  8. Based in Danbury, 16 mi away

    56/100IFR Score

    Ranked #9 because of its Google rating and service focus: 5.0★ from 50 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 50 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    70 Stony Hill Rd, Bethel, CT 06801
  9. Based in Melville, 42 mi away

    55/100IFR Score

    Ranked #12 because of its Google rating and service focus: 5.0★ from 70 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 70 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 10 AM–4 PM · Sun closed
    Address
    555 Broadhollow Rd suite 101, Melville, NY 11747
  10. Based in Plainview, 41 mi away

    55/100IFR Score

    Ranked #13 because of its Google rating and service focus: 4.9★ from 116 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.9★ from 116 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    1 Dupont St, Plainview, NY 11803
  11. Based in Bridgeport, 10 mi away

    55/100IFR Score

    Ranked #14 because of its Google rating and service focus: 4.6★ from 19 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.6★ from 19 Google reviews
    Hours
    Mon–Sat 10 AM–9 PM · Sun 11 AM–8 PM
    Address
    1050 E Main St, Bridgeport, CT 06608
  12. Based in Copiague, 47 mi away

    55/100IFR Score

    Ranked #15 because of its Google rating and review volume: 5.0★ from 520 Google reviews.

    • 5.0★ from 520 Google reviews
    Hours
    Mon–Sat 10 AM–8 PM · Sun 11 AM–6 PM
    Address
    1905 Great Neck Rd, Copiague, NY 11726
  13. 55/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.9★ from 38 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.9★ from 38 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    51 Giles Ave Ste 14, North Haven, CT 06473
  14. Based in White Plains, 41 mi away

    55/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.3★ from 61 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.3★ from 61 Google reviews
    Hours
    Mon–Sat 10 AM–8 PM · Sun 11 AM–7 PM
    Address
    97 Mamaroneck Ave, White Plains, NY 10601
  15. Based in Hartford, 36 mi away

    55/100IFR Score

    Ranked #19 because of its Google rating and service focus: 5.0★ from 30 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 30 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    468 Franklin Ave, Hartford, CT 06114
  16. Based in Danbury, 20 mi away

    55/100IFR Score

    Ranked #20 because of its Google rating and service focus: 5.0★ from 17 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 17 Google reviews
    Hours
    Mon–Sat 10 AM–8 PM · Sun 11 AM–7 PM
    Address
    366 Main St, Danbury, CT 06810
  17. Based in North Haven, 12 mi away

    54/100IFR Score

    Ranked #21 because of its Google rating and service focus: 4.6★ from 9 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.6★ from 9 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    66 Leonardo Dr, North Haven, CT 06473
  18. Based in Bridgeport, 12 mi away

    54/100IFR Score

    Ranked #22 because of its Google rating and service focus: 5.0★ from 31 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 31 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1730 State St Ext Ste G, Bridgeport, CT 06605
  19. Based in Patchogue, 39 mi away

    54/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 18 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    501 W Main St Ste b, Patchogue, NY 11772
  20. Based in Smithtown, 33 mi away

    54/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 50 Google reviews, listed on Google as “Telecommunications service provider”.

    • 5.0★ from 50 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    34 E Main St, Smithtown, NY 11787
  21. #25 Comsat

    Based in Southbury, 14 mi away

    53/100IFR Score

    Ranked #25 because of its Google rating and service focus: 4.8★ from 6 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.8★ from 6 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2120 River Rd, Southbury, CT 06488

Business phone system providers ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in IFR Score order; each links to its profile. We publish the top 50 of 217 ranked business phone system providers here; the rest are on their profiles.

business phone system providers in Derby, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Telechoice Consulting, Inc. - Hosted PBX & VoIP534.9★ (48)36 mi
27Business Phone Systems - Telco Depot534.3★ (84)36 mi
28Sonictel, Inc.535.0★ (19)9 mi
29Choice IoT Inc.535.0★ (21)42 mi
30Super-G Intelligence IT Services & Networking NYC535.0★ (13)28 mi
31CCi Voice535.0★ (42)37 mi
32DRP Solutions524.4★ (57)37 mi
33Tricom Technology Inc.525.0★ (38)41 mi
34World Connections - Wireless Retailer & Phone Repair Center525.0★ (102)27 mi
35Econsys LLC525.0★ (12)35 mi
36Benoits Communications524.2★ (28)46 mi
37Optimum523.3★ (961)10 mi
38Total Wireless525.0★ (10)31 mi
39TeleData Services, LLC.524.9★ (90)35 mi
40Total Wireless524.9★ (120)32 mi
41P M Communications Corporation525.0★ (23)27 mi
42Total Wireless515.0★ (176)48 mi
43Optimum514.6★ (227)41 mi
44ComNet Communications514.6★ (18)18 mi
45Telcom Savvy LLC515.0★ (5)32 mi
46Total Wireless514.8★ (133)37 mi
47Total Wireless515.0★ (9)37 mi
48Optimum504.3★ (164)28 mi
49Total Wireless504.8★ (118)37 mi
50TSCVoIP504.9★ (16)40 mi

Also serving Derby

20 more business phone system providers within 50 mi that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.

Unranked business phone system providers serving Derby
BusinessGoogle ratingDistance
Branded Mind5.0★ (2)41 mi
Core Support LLC5.0★ (2)36 mi
Data Wire Solutions5.0★ (2)39 mi
Deltacom4.5★ (2)12 mi
Dimension Data New York5.0★ (2)37 mi
EXEYE Software Tools Inc4.0★ (2)47 mi
Falcon Data Networks LLC5.0★ (2)49 mi
GCS COMPUTER LLC4.6★ (496)In Derby
JFH Communications3.5★ (2)16 mi
JMI Technologies5.0★ (2)48 mi
Networks On Demand5.0★ (2)42 mi
Newcastle Communications5.0★ (2)45 mi
One Stop Solution5.0★ (2)41 mi
Real Life Logic5.0★ (2)17 mi
RIR Communications Systems5.0★ (2)49 mi
Tech Force Inc.5.0★ (2)45 mi
Telspan International LTD5.0★ (2)43 mi
Total Wireless5.0★ (2)36 mi
Total Wireless5.0★ (2)37 mi
Total Wireless5.0★ (2)40 mi

How we ranked Derby business phone system providers

We scored 217 Derby business phone system providers on nine factors, weighted as shown. An IT firm is ranked when its service is confirmed and it has 3 or more Google reviews or a claimed profile. An IT firm with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.

Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

IFR Score factors and weights
FactorWeightComputed fromIn Derby data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Review volume15%Number of Google reviews, compared with the most-reviewed IT firm on the listMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday and 24/7 supportMeasured
Service focus15%How clearly the firm does this service (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The firm has claimed its IT Firms Ranked profile (free or paid earn the same)Measured
Partnered5%The firm links to IT Firms Ranked from its own website with our badge, checked periodicallyMeasured
Client reviews10%Verified client reviews collected by IT Firms Ranked: their rating and how many there areMeasured

How to choose a business phone system provider

  1. Ask whether the system is cloud-hosted or installed on site, and who maintains it.
  2. Check internet capacity and backup: a cloud phone system stops when your connection does.
  3. Ask how 911 locations are registered for each phone and for remote staff.
  4. Compare per-user prices on the same features (call recording, queues, integrations).
  5. Ask for two or three references from clients of your size and industry, and call them.
  6. Get the scope, response times and price in writing before you sign, including how you leave and get your data back.

Questions to ask a business phone system provider

  • Is the price per user, and which features are extra?
  • Will you port our existing numbers, and how long does it take?
  • What happens to calls if our internet connection goes down?
  • How are 911 locations set up for office and remote staff?
  • Who do we call for support, and during which hours?
  • What is the contract length, and are phones bought or leased?

Terms explained

MSP (managed service provider)
A firm that runs a business’s IT for a recurring fee: monitoring, patching, help desk, backups and security tools.
Co-managed IT
An arrangement where an outside firm supports an in-house IT person or team, sharing tools and tasks.
Break-fix
IT support paid per incident or per hour, with no monthly agreement.
SLA (service-level agreement)
The contract terms for response and resolution times, uptime and support hours.
Help desk
The support line staff call or email for IT problems.
RMM
Remote monitoring and management software that lets an IT firm watch, patch and fix computers remotely.
vCIO
A virtual chief information officer: part-time IT strategy and budgeting from an outside firm.
MSSP
A managed security service provider: a firm that monitors and manages security tools around the clock.
EDR / MDR
Endpoint detection and response software, and the managed service of people watching its alerts (managed detection and response).
MFA
Multi-factor authentication: a second proof of identity, such as an app prompt, on top of a password.
Penetration test
An authorised, simulated attack on your systems to find weaknesses before criminals do.
SOC 2
An independent auditor’s report (AICPA standard) on a service provider’s security controls.

Business phone system providers in Derby: frequently asked questions

Who is the best business phone system provider in Derby?

By IFR Score, the highest-ranked business phone system provider in Derby, CT is Blink Voice with an IFR Score of 62/100. It has 4.8★ from 312 Google reviews. It is open 7 days a week. Total Wireless (#2) and Axe Elite (#3) follow. We ranked 217 business phone system providers on nine factors, last updated November 9, 2026.

How many business phone system providers are there in Derby?

ITFirmsRanked ranks 217 business phone system providers serving Derby, CT. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.

Which business phone system providers in Derby work on weekends?

113 of 217 ranked business phone system providers post Saturday hours and 90 post Sunday hours. The highest-ranked open Saturdays are Blink Voice (#1), Total Wireless (#2) and Axe Elite (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Derby business phone system providers have?

The median Google rating among 217 rated business phone system providers in Derby is 4.9★, with a median of 13 reviews. Optimum has the most, 961 reviews, and ranks #37. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ITFirmsRanked rank business phone system providers?

Each business phone system provider gets a 0–100 IFR Score from nine published factors, led by reputation (25%), review volume (15%), service focus (15%) and recency (10%). An IT firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only IT firms with a confirmed service and 3 or more reviews, or a claimed profile, are ranked.

Do business phone system providers outside Derby count in this ranking?

Yes, if they are within 50 mi of the Derby city center, our service radius for business phone system providers. Each listing shows where the IT firm is based and how far away it is. Proximity is 5% of the IFR Score, so a nearby IT firm gets a small edge.

Can business phone system providers pay to rank higher on ITFirmsRanked?

No. The IFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured IT firms may appear above the list, labelled Sponsored and showing their honest rank.

What does a business phone system provider do?

Business phone system providers set up and support office phone systems, mostly cloud VoIP today: numbers, desk phones, call routing, voicemail and contact-centre features.

How are business phone system providers in Derby ranked?

By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does business phone systems and VoIP, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.

Can we keep our phone numbers if we switch providers?

In most cases yes: numbers can be ported to a new provider in the US and Canada. Keep your current service active until the port is complete, and ask the new provider to manage the port request.

What about 911 calls on a VoIP system?

Each phone needs a registered location so 911 calls go to the right place. In the US, multi-line systems must support direct 911 dialling and send dispatchable location information under federal rules (Kari’s Law and RAY BAUM’S Act). Ask the provider how they set this up.

Update log for Derby

  1. November 2026: IFR Scores recalculated for 217 business phone system providers serving Derby.
  2. November 2026: 1 duplicate listing merged.