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Best Business Phone System Providers in Schofield Barracks, HI (2026)

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

The short answer

  1. 1

    Best overall in Schofield Barracks: Hawaiian Telcom, IFR Score 56/100; 2.9★ from 1,025 Google reviews; open Saturdays until 5 PM.

  2. 8

    Most-reviewed: Upnext Wireless, 75 Google reviews at 4.7★, the most of 19 ranked after Hawaiian Telcom; ranked #8.

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

19 Schofield Barracks business phone system providers are ranked here by IFR Score, from nine published factors. 9 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.4★ across 19 rated IT firms.

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

Top 10 business phone system providers in Schofield Barracks 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 Schofield Barracks at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Hawaiian Telcom562.9★ (1,025)Honolulu, 19 mi awaySatOverall
2Integrated Technology Solutions | ITS Hawaii555.0★ (54)Waipahu, 9 mi away——
3Servpac Inc.524.7★ (34)Honolulu, 17 mi away——
4Hawaii Pacific Teleport514.4★ (8)Kapolei, 11 mi awaySat · Sun · Evenings—
5MTP Data Center by Servpac513.3★ (7)Mililani Town, 3 mi awaySat · Sun · Evenings—
6Hawaiian Telcom Sales Kiosk - Windward495.0★ (7)Kaneohe, 18 mi awaySat · Sun · Evenings—
7Cabling Hawaii494.7★ (13)Honolulu, 24 mi awaySat · Evenings—
8Upnext Wireless484.7★ (75)Honolulu, 20 mi awaySatMost reviews
9Upnext Wireless Chinatown444.0★ (38)Honolulu, 18 mi awaySat · Sun—
10Sandwich Isles Communications441.6★ (16)Honolulu, 19 mi away——

The 19 best business phone system providers in Schofield Barracks, 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 Schofield Barracks

    #1 Hawaiian Telcom

    Based in Honolulu, 19 mi away

    56/100IFR Score

    Ranked #1 because of review volume and service focus: the most Google reviews in Schofield Barracks (1,025), listed on Google as “Telecommunications service provider”.

    • 2.9★ from 1,025 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 9 AM–5 PM · Sun closed
    Address
    1177 Bishop St, Honolulu, HI 96813
    View profile for Hawaiian Telcom(808) 643-3456

  3. #3 Servpac Inc.

    Based in Honolulu, 17 mi away

    52/100IFR Score

    Ranked #3 because of its Google rating and service focus: 4.7★ from 34 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.7★ from 34 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1931 N King St, Honolulu, HI 96819
    View profile for Servpac Inc.(808) 237-5000

  7. #7 Cabling Hawaii

    Based in Honolulu, 24 mi away

    49/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.7★ from 13 Google reviews, listed on Google as “Telecommunications contractor”.

    • 4.7★ from 13 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    Address
    Parking lot, 4348 Waialae Ave #928, Honolulu, HI 96816
    View profile for Cabling Hawaii(808) 791-0580

  8. #8 Upnext Wireless

    Based in Honolulu, 20 mi away

    48/100IFR Score

    Ranked #8 because of its Google rating and review volume: 4.7★ from 75 Google reviews.

    • 4.7★ from 75 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 10 AM–3 PM · Sun closed
    Address
    1027 Pensacola St b, Honolulu, HI 96814
    View profile for Upnext Wireless(808) 591-0025

  11. #11 Modtech Solutions

    Based in Hālawa Heights, 14 mi away

    44/100IFR Score

    Ranked #11 because of its Google rating and service focus: 3.7★ from 3 Google reviews, listed on Google as “Telecommunications contractor”.

    • 3.7★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    99-1312 Koaha Pl Bay 101, Aiea, HI 96701
    View profile for Modtech Solutions(808) 204-2384

  12. #12 Converged Telcom LLC

    Based in Honolulu, 18 mi away

    43/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.3★ from 3 Google reviews, listed on Google as “Telecommunications service provider”.

    • 4.3★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–4:45 PM · Sat–Sun closed
    Address
    518 Holokahana Ln #3013, Honolulu, HI 96817
    View profile for Converged Telcom LLC(808) 521-0000

  13. #13 Tech Connection Inc

    Based in Honolulu, 19 mi away

    43/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Telecommunications contractor”.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    201 Merchant St #2430, Honolulu, HI 96813
    View profile for Tech Connection Inc(808) 695-4300

  14. #14 mobi

    Based in Waianae, 10 mi away

    43/100IFR Score

    Ranked #14 because of its Google rating and service focus: 4.0★ from 16 Google reviews, listed on Google as “Cell phone store”.

    • 4.0★ from 16 Google reviews
    Hours
    Mon–Sun 10 AM–6 PM
    Address
    87-2130 Farrington Hwy, Waianae, HI 96792
    View profile for mobi(808) 457-3300

  15. #15 Security Cameras Oahu

    Based in Waipahu, 6 mi away

    42/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Security system supplier”.

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    94-1221 Ka Uka Blvd #108, Waipahu, HI 96797
    View profile for Security Cameras Oahu(808) 392-6592

  16. #16 Gohoku

    Based in Honolulu, 20 mi away

    41/100IFR Score

    Ranked #16 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer support and services”.

    • 5.0★ from 18 Google reviews
    Hours
    Mon–Fri 9 AM–4:30 PM · Sat–Sun closed
    Address
    1009 Kapiolani Blvd, Honolulu, HI 96814
    View profile for Gohoku(888) 815-0038

  17. #17 Optinet Hawaii LLC

    Based in Honolulu, 17 mi away

    38/100IFR Score

    Ranked #17 because of its Google rating and service focus: 4.6★ from 9 Google reviews, listed on Google as “Computer repair service”.

    • 4.6★ from 9 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    111 Sand Island Access Rd #r18, Honolulu, HI 96819
    View profile for Optinet Hawaii LLC(808) 469-0000

  18. #18 Starcomm Wireless Inc.

    Based in Honolulu, 17 mi away

    38/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.3★ from 9 Google reviews, listed on Google as “Telecommunications equipment supplier”.

    • 4.3★ from 9 Google reviews
    Hours
    Mon–Fri 7 AM–3:30 PM · Sat–Sun closed
    Address
    275 Puuhale Rd Unit A, Honolulu, HI 96819
    View profile for Starcomm Wireless Inc.(808) 845-7827

  19. #19 Cetra Technology Inc.

    Based in Honolulu, 19 mi away

    36/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.0★ from 5 Google reviews, listed on Google as “Computer support and services”.

    • 4.0★ from 5 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    900 Fort Street Mall #1320, Honolulu, HI 96813
    View profile for Cetra Technology Inc.(808) 545-7505

How we ranked Schofield Barracks business phone system providers

We scored 19 Schofield Barracks 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 Schofield Barracks 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 Schofield Barracks: frequently asked questions

Who is the best business phone system provider in Schofield Barracks?

By IFR Score, the highest-ranked business phone system provider in Schofield Barracks, HI is Hawaiian Telcom with an IFR Score of 56/100. It has 2.9★ from 1,025 Google reviews. It is open Saturdays until 5 PM. Integrated Technology Solutions | ITS Hawaii (#2) and Servpac Inc. (#3) follow. We ranked 19 business phone system providers on nine factors, last updated November 9, 2026.

How many business phone system providers are there in Schofield Barracks?

ITFirmsRanked ranks 19 business phone system providers serving Schofield Barracks, HI. Counts are as of November 2026.

Which business phone system providers in Schofield Barracks work on weekends?

9 of 19 ranked business phone system providers post Saturday hours and 6 post Sunday hours. The highest-ranked open Saturdays are Hawaiian Telcom (#1), Hawaii Pacific Teleport (#4) and MTP Data Center by Servpac (#5). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Schofield Barracks business phone system providers have?

The median Google rating among 19 rated business phone system providers in Schofield Barracks is 4.4★, with a median of 9 reviews. Hawaiian Telcom has the most, 1,025 reviews, and ranks #1. 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 Schofield Barracks count in this ranking?

Yes, if they are within 50 mi of the Schofield Barracks 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 Schofield Barracks 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 Schofield Barracks

  1. November 2026: IFR Scores recalculated for 19 business phone system providers serving Schofield Barracks.

More business phone system providers and Schofield Barracks pages