An online fax service should fit the documents your staff handle, not just the number of pages they send. Shortlist Carolina Digital Phone when fax belongs in a broader business phone purchase, or Dropbox Fax for occasional outbound documents without a subscription. The former supports online fax and standard fax machine integration; the latter offers pay-per-fax sending (pay-per-fax pricing).
For a shared office workflow, compare the cost of named users, delivery handling and the security tier you actually need. A low entry price is useful only if that plan lets the right employee receive, act on and retrieve the document.
Six services matched to different fax workloads
Carolina Digital Phone provides online digital faxing with standard fax machine integration available. That makes it worth considering when some employees need computer-based faxing while others still work with physical documents.
| Online fax service | Strongest buying reason | Workflow to evaluate |
|---|---|---|
| Carolina Digital Phone | Combine fax with business communications | Portal sending and machine integration |
| Fax.Plus | Separate individual and managed team tiers | Business admin console and members |
| SRFax | Healthcare plans with multiple user accounts | Authorized email addresses and billing |
| Dropbox Fax | Occasional sending without monthly commitment | Outbound documents paid per fax |
| eFax | Five-user Business tier with BAA | Shared volume with licensed users |
| MetroFax | Moderate volume with automatic retries | Confirmations and web administration |
Prices below were reviewed October 17, 2026, in US dollars. Compare recurring charges rather than introductory offers, and distinguish annual billing from month-to-month service.
Fax.Plus Basic starts at $6.99/month with $83.99 billed annually for 200 pages and one member. Business includes five members and 1,000 pages at $27.99/month with $335.99 billed annually. Choose the team tier when separate employee access matters more than the individual entry price (fax plan pricing).
SRFax Healthcare Lite costs $12.60/month for 200 pages, with $0.05 per additional page. Its healthcare plans include multiple individual user accounts, unlimited authorized email addresses, and consolidated billing. Shortlist it when a healthcare office needs those account arrangements at modest volume (healthcare fax plans).
Dropbox Fax charges $0.99 for a fax of up to 10 pages, then $0.20 per additional page. That suits sporadic outbound paperwork better than paying every month for unused capacity.
For ongoing service, eFax Personal costs $18.99/month for 200 pages and one user; Business costs $39.99/month for 500 pages and five user licenses. MetroFax Essential costs $11.95/month for 550 combined sent and received pages. Favor the former when its Business user package fits your team; favor the latter when page capacity and retry handling drive the purchase (eFax plan pricing, MetroFax plan pricing).
Match security controls to the documents and recipients
Fax.Plus reserves HIPAA compliance with a Business Associate Agreement for Enterprise. Its healthcare configuration includes two-factor authentication, role-based access controls, and restricted transmission channels. This is a reason to budget for Enterprise rather than assume the Basic subscription covers the same workflow (healthcare security controls).
eFax Business includes a BAA alongside its five licenses. For organizations handling protected health information, obtain the required agreement and review access, notifications, and document handling before uploading patient records; a product’s compliance label does not replace your organization’s responsibilities.
During a demonstration, ask an administrator to create a sender account and a second account responsible for incoming documents. Then have each person show what they can open, download, and delete. Make the purchase conditional on those permissions matching actual job responsibilities, rather than accepting a demonstration performed entirely through the administrator’s login.
Test delivery from upload through the receiving inbox
Carolina Digital Phone assigns the fax number to the appropriate user. In the Manager Portal, the sender selects Fax, then Send Fax, browses for a document, enters the destination number, and optionally adds a cover letter. Sending produces a notification identifying when and to which number the fax was sent or received. Use the fax sending walkthrough to rehearse that exact sequence before evaluating it with your staff.
MetroFax includes automatic retries and immediate confirmations across its plans. That is particularly relevant when your purchasing test includes a busy destination: watch the retry process and inspect the final result rather than stopping after the upload screen.
Run a controlled test with a recipient who can inspect the received document. Use a representative multi-page PDF containing small print, a signature, and a scanned page. Ask the recipient to verify legibility and page order, then locate the matching transmission record. Your acceptance checklist should include both a successful delivery and an unsuccessful attempt, so staff can demonstrate how they identify work needing attention.
Give incoming documents an owner before adding users
Start by assigning responsibility for each incoming number. Who checks it during lunch, who covers absences, and who files the final document? Have two employees demonstrate that handoff without borrowing each other’s credentials. The practical buying question is whether a second employee can finish the work when the original sender is unavailable.
Carolina Digital Phone supports portal-based sending and user assignment of the fax number, giving the demonstration a concrete starting point. Ask to see the proposed configuration with your actual receiving responsibilities, rather than assuming that every employee needs identical access.
If the purchase also replaces office phones, use the guide to choosing a local hosted provider to frame service questions. Review the separate mobile phone service guide when planning how employees will handle calls away from their desks. Keep those phone requirements separate from your fax acceptance test.
Calculate the bill for your busiest ordinary month
Collect sent pages, received pages, employee count, and destination countries from a recent busy month. Ask for a quote using that workload and the required access settings. Include the cost of keeping an existing number and any equipment connection in the same purchasing worksheet.
For pay-per-fax sending, calculate each transmission separately. Dropbox Fax applies its $0.99 charge to each fax of up to 10 pages, rather than selling a shared monthly block of ten pages. That distinction matters when many short documents go to different recipients.
For a hypothetical month of 8 separate Dropbox Fax transmissions, each containing 6 pages, the page total is 8 × 6 = 48 pages. Each fax falls within the first 10 pages, so the sending charge is 8 × $0.99 = $7.92, before any applicable taxes.
Choose the service that completes your document workflow
Choose occasional sending when you rarely fax and do not need an incoming line. Choose a managed team plan when coverage and individual access are essential. For an office keeping a fax machine while updating communications, Carolina Digital Phone offers the relevant equipment connection alongside online fax.
Bring your page counts, existing number, and receiving responsibilities to the business communications pricing request so the proposed service can be evaluated against your actual workflow.
Frequently Asked Questions
Can free online fax services receive documents?
Dropbox Fax’s free allowance covers outbound sending. Receiving requires a paid account, which provides a fax number and forwards incoming documents to email as PDFs. Its free option is therefore suited to sending occasional documents rather than maintaining an incoming business fax line.
Can I keep my existing fax number?
Porting eligibility depends on the provider and plan. Fax.Plus requires Premium or higher to port a US or Canadian number. Dropbox Fax requires Professional or Small Business for number porting. Obtain acceptance for your specific number before scheduling a change.
Which file types can I send through Carolina Digital Phone?
Carolina Digital Phone accepts .html, .pdf, .doc, .docx, .jpg, .tif, .odt, and .txt files for portal faxing. Check that your document export uses one of those formats before uploading it.
