Best fax services for VoIP businesses: cloud fax vs legacy faxing
Compare fax services for VoIP businesses by cloud replacement workflow, number porting, email/mobile access, API options and communications integration.
“VoIP fax” can mean two different problems: trying to keep a traditional fax machine on an internet phone system, or replacing the machine with a cloud fax service. FaxScout focuses on the second decision for businesses that want faxing to work independently of an analog fax line.
FaxScout verdict
Fax.Plus
Best balanced choice for many small-business and team workflows.
From $6.99/mo; Business $27.99/mo; Enterprise $79.99/mo
- Clear 200 / 500 / 1,000+ page ladder
- Email-to-fax and mobile apps
- Business team/admin controls
- Enterprise API, SSO, BAA and data residency
Avoid if: Not the economical HIPAA choice for a small practice because Fax.Plus lists BAA/HIPAA on Enterprise only.
What matters for this decision
Side-by-side shortlist
| Provider | Starting price | Allowance | HIPAA / BAA | Number | Porting | Email fax | API | Score |
|---|---|---|---|---|---|---|---|---|
| Fax.PlusBest balanced choice for many small-business and team workflows | From $6.99/mo; Business $27.99/mo; Enterprise $79.99/mo | 200 (combined) | Enterprise only / Yes | Yes | Premium+ | Yes; HIPAA accounts use the dedicated TLS-enforced @tls.fax.plus route | Enterprise | 9.1/10 |
| RingCentral FaxBest considered when fax should live inside a broader communications platform | Fax is available within RingCentral business communications offerings; verify current quote | Quote / varies | Supported for covered services / Yes for paying covered-entity customers | Yes | Yes | Yes | Yes | 8.5/10 |
| iFaxStrong low-volume healthcare and HIPAA-oriented option | Basic $12.49/mo (200 pages); Plus $24.99/mo (500 pages) | 200 (combined) | Plus+ / Yes | Plus+ | Yes | Yes | Yes | 8.9/10 |
Published plan facts use the provider verification dates maintained in FaxScout’s research data. “Verify” means the provider does not expose a sufficiently clear public answer for FaxScout to state it as fact.
First decide whether you are preserving hardware or replacing it
Use a cloud fax service so sending and receiving happen through software, email or apps.
That is a telecom-configuration problem rather than the core FaxScout buying path. Verify the VoIP provider, adapter/gateway and fax protocol requirements directly.
RingCentral is worth comparing when voice, messaging, meetings and fax belong in one business platform.
VoIP fax migration checklist
How FaxScout would make the decision
Start with non-negotiables: BAA eligibility, monthly volume, existing-number continuity, team size and API/integration requirements. Then compare total expected cost. Cosmetic features are tiebreakers, not reasons to ignore a major constraint.
We use primary provider documentation for plan facts and label every untested performance dimension. See who creates FaxScout research →
Frequently asked questions
Do I need a fax machine to fax after moving phones to VoIP?
No if you move faxing to a cloud fax service. The fax workflow can then operate through a browser, email or app instead of relying on an analog fax machine.
When should I consider RingCentral for fax?
RingCentral is most relevant when fax should live inside a broader business communications platform rather than as a standalone low-cost fax subscription.
Can I keep my existing fax number?
Many cloud fax providers support number porting, but eligibility and timing vary. Confirm the number can be transferred before cancelling the old service.
Sources & verification
Material plan facts were checked against primary documentation at the verification date shown above.
- Fax.Plus — official documentation
- Fax.Plus — official documentation
- Fax.Plus — official documentation
- RingCentral Fax — official documentation
- RingCentral Fax — official documentation
- iFax — official documentation
- iFax — official documentation
- iFax — official documentation