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Best Business Phone System Providers in Brea, CA (2026)

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

The short answer

  1. 1

    Best overall in Brea: Call Tools, IFR Score 66/100; 5.0★ from 1,134 Google reviews; open 7 days a week.

  2. 2

    Most-reviewed: BAI Connect, 5,561 Google reviews at 4.8★, the most of 369 ranked; ranked #2.

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

369 Brea business phone system providers are ranked here by IFR Score, from nine published factors. 179 open Saturdays and 146 open Sundays, based on posted hours. The median Google rating is 4.9★ across 369 rated IT firms.

Most of this list also appears on the Business phone system providers in Los Angeles ranking. See Business phone system providers in Los Angeles

Top 10 business phone system providers in Brea 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 Brea at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Call Tools665.0★ (1,134)Irvine, 16 mi awaySat · SunOverall
2BAI Connect654.8★ (5,561)Sherman Oaks, 36 mi away—Most reviews
3LAN WAN Enterprise - IT Services In Orange County & Irvine635.0★ (174)Irvine, 16 mi awaySat · Sun · Evenings—
4Total Wireless615.0★ (202)Hawthorne, 25 mi awaySat · Sun · Evenings—
5Total Wireless615.0★ (93)Westminster, 12 mi awaySat · Sun · Evenings—
6Tierzero Business Phones & Internet604.9★ (66)Los Angeles, 23 mi awaySat · Sun · Evenings—
7CoreSite Los Angeles Data Center (LA2)604.5★ (111)Los Angeles, 22 mi awaySat · Sun · Evenings—
8iTalkBB Hacienda Heights604.7★ (56)Hacienda Heights, 5 mi awaySat · Sun · Evenings—
9Boost Mobile594.7★ (155)Inglewood, 27 mi awaySat · Sun · Evenings—
10Digico Wiring and Installation595.0★ (87)Los Angeles, 28 mi awaySat · Sun · Evenings—

The 369 best business phone system providers in Brea, 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.

  1. Ranked #1 in Brea

    Based in Irvine, 16 mi away

    66/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 1,134 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 1,134 Google reviews
    Hours
    Mon–Fri 5 AM–5 PM · Sat–Sun 7 AM–4 PM
    Address
    16842 Von Karman Ave Ste 475, Irvine, CA 92606
  2. Based in Sherman Oaks, 36 mi away

    65/100IFR Score

    Ranked #2 because of its Google rating and review volume: 4.8★ from 5,561 Google reviews, the most in Brea.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 4.8★ from 5,561 Google reviews
    Address
    15301 Ventura Blvd #220, Sherman Oaks, CA 91403
  3. 63/100IFR Score

    Ranked #3 because of its Google rating and service focus: 5.0★ from 174 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 174 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    17500 Red Hill Ave Ste 120, Irvine, CA 92614
  4. Based in Hawthorne, 25 mi away

    61/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 202 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 202 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    3890 W Rosecrans Ave, Hawthorne, CA 90250
  5. Based in Westminster, 12 mi away

    61/100IFR Score

    Ranked #5 because of its Google rating and service focus: 5.0★ from 93 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 93 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    9928 Bolsa Ave, Westminster, CA 92683
  6. Based in Hacienda Heights, 5 mi away

    60/100IFR Score

    Ranked #8 because of its Google rating and service focus: 4.7★ from 56 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.7★ from 56 Google reviews
    Hours
    Mon–Sun 10 AM–7 PM
    Address
    17120 Colima Rd Ste 104, Hacienda Heights, CA 91745
  7. Based in Inglewood, 27 mi away

    59/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.7★ from 155 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.7★ from 155 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    305 W Arbor Vitae St B, Inglewood, CA 90301
  8. Based in Anaheim, 8 mi away

    59/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 34 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    1284 S Magnolia Ave, Anaheim, CA 92804
  9. Based in Fontana, 29 mi away

    59/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.9★ from 99 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 99 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    10012 Sierra Ave, Fontana, CA 92335
  10. Based in Santa Ana, 11 mi away

    59/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 36 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 36 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    2525 Westminster Ave F, Santa Ana, CA 92706
  11. Based in Los Angeles, 24 mi away

    59/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 60 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 60 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun 9 AM–5 PM
    Address
    705 S Alvarado St, Los Angeles, CA 90057
  12. Based in Rowland Heights, 6 mi away

    59/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.5★ from 44 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.5★ from 44 Google reviews
    Hours
    Mon–Sun 10 AM–7 PM
    Address
    1015 Nogales St #113b, Rowland Heights, CA 91748
  13. Based in La Puente, 9 mi away

    59/100IFR Score

    Ranked #17 because of its Google rating and service focus: 4.4★ from 58 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.4★ from 58 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    810 N Hacienda Blvd, La Puente, CA 91744
  14. Based in Buena Park, 8 mi away

    58/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.8★ from 31 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.8★ from 31 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    7903 S Knott Ave a, Buena Park, CA 90620
  15. Based in Garden Grove, 11 mi away

    58/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.9★ from 111 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 111 Google reviews
    Hours
    Mon–Fri 6:30 AM–6 PM · Sat–Sun closed
    Address
    12635 Hoover St, Garden Grove, CA 92841
  16. Based in El Monte, 14 mi away

    58/100IFR Score

    Ranked #20 because of its Google rating and service focus: 5.0★ from 106 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 106 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    3360 Flair Dr #221, El Monte, CA 91731
  17. #21 VOaaS

    Based in Pasadena, 21 mi away

    58/100IFR Score

    Ranked #21 because of its Google rating and service focus: 5.0★ from 68 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 68 Google reviews
    Hours
    Mon–Sat 8 AM–8 PM · Sun closed
    Address
    36 W Colorado Blvd Ste 3B, Pasadena, CA 91105
  18. #22 XYZies

    Based in Newport Beach, 18 mi away

    58/100IFR Score

    Ranked #22 because of its Google rating and service focus: 4.8★ from 176 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.8★ from 176 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    20271 SW Acacia St, Newport Beach, CA 92660
  19. Based in Tustin, 13 mi away

    58/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 12 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    340 E 1st St, Tustin, CA 92781
  20. Based in Santa Ana, 15 mi away

    58/100IFR Score

    Ranked #24 because of its Google rating and service focus: 4.8★ from 131 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.8★ from 131 Google reviews
    Hours
    Mon–Fri 6 AM–5 PM · Sat–Sun closed
    Address
    3411 W Lake Center Dr, Santa Ana, CA 92704
  21. Based in Laguna Woods, 23 mi away

    58/100IFR Score

    Ranked #25 because of its Google rating and service focus: 5.0★ from 68 Google reviews, listed on Google as “Telecommunications service provider”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 68 Google reviews
    Hours
    Mon–Fri 6 AM–6 PM · Sat 6 AM–4 PM · Sun closed
    Address
    24338 El Toro Rd Suite E-239, Laguna Woods, CA 92637

How we ranked Brea business phone system providers

We scored 369 Brea 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 Brea 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 Brea: frequently asked questions

Who is the best business phone system provider in Brea?

By IFR Score, the highest-ranked business phone system provider in Brea, CA is Call Tools with an IFR Score of 66/100. It has 5.0★ from 1,134 Google reviews. It is open 7 days a week. BAI Connect (#2) and LAN WAN Enterprise - IT Services In Orange County & Irvine (#3) follow. We ranked 369 business phone system providers on nine factors, last updated November 9, 2026.

How many business phone system providers are there in Brea?

ITFirmsRanked ranks 369 business phone system providers serving Brea, CA. Counts are as of November 2026.

Which business phone system providers in Brea work on weekends?

179 of 369 ranked business phone system providers post Saturday hours and 146 post Sunday hours. The highest-ranked open Saturdays are Call Tools (#1), LAN WAN Enterprise - IT Services In Orange County & Irvine (#3) and Total Wireless (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Brea business phone system providers have?

The median Google rating among 369 rated business phone system providers in Brea is 4.9★, with a median of 13 reviews. BAI Connect has the most, 5,561 reviews, and ranks #2. 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 Brea count in this ranking?

Yes, if they are within 50 mi of the Brea 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 Brea 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 Brea

  1. November 2026: IFR Scores recalculated for 369 business phone system providers serving Brea.
  2. November 2026: 1 duplicate listing merged.