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OTG Networks vFax

What it is

OTG Networks vFax lets users send and receive faxes by email, through a browser, or from a device without fax hardware. Email users can attach a PDF and enter the fax number in the recipient field; incoming faxes arrive in the inbox as PDF attachments. The browser portal supports document drag-and-drop, fax history, and management of multiple numbers. Customers can get a dedicated local or toll-free fax number or port an existing one. Delivery receipts report a timestamp, the pages delivered, and recipient confirmation. OTG describes vFax as HIPAA compliant, with encryption in transit and at rest, role-based access controls, and audit logs; the page also lists 256-bit encryption and SOC 2 readiness. It advertises unlimited cloud storage and supports Android, iOS, macOS, web, and Windows. The vFax plan is listed as free and included on every GoOTG plan. A separate general pricing note starts at $15/user/mo, while Starter and Business GoOTG plans are listed at $15 a month and $29 a month, respectively.

For and against

For

  • Send faxes by email with a PDF attachment.
  • Incoming faxes arrive as PDF attachments.
  • Supports dedicated numbers or number porting.
  • Includes delivery receipts and fax history.
  • Available on Android, iOS, macOS, web, and Windows.

Against

  • No standalone free plan is listed.
  • The general pricing note starts at $15/user/mo.
  • Support hours are listed for weekdays and Saturday only.

The verdict

vFax offers several ways to send and receive faxes, alongside number management, delivery receipts, and stated security controls. Check how the GoOTG plan inclusion and general starting price apply to your needs.

Who it suits

vFax may suit organizations that need to send and receive faxes by email or browser, including sectors OTG identifies such as healthcare, legal, finance and banking, and real estate. It supports mobile and desktop platforms.

Plans and prices

Starter

$15a month

Unlimited calling · Voicemail transcription · Mobile and desktop apps · Basic analytics

Business

$29a month

AI-powered call routing · Advanced analytics · CRM integrations · Call recording

Enterprise

Priced on request

Dedicated account manager · Custom integrations · SLA guarantees · Advanced security

vFax

Free

Included free on every GoOTG plan · dedicated local or toll-free fax number · send and receive faxes

Every plan, in full

On the record

Compliance
OTG describes vFax as HIPAA compliant and lists 256-bit encryption, full audit logs, and SOC 2 ready.otg-group.com · read 11 Oct 2026
Compliance support
hipaaotg-group.com · read 21 Sep 2026
Email faxing
Users can send a fax from an email client by attaching a PDF and entering the fax number in the recipient field.otg-group.com · read 11 Oct 2026
Fax delivery
Incoming faxes arrive as PDF attachments in the user's email inbox.otg-group.com · read 11 Oct 2026
Fax numbers
Customers can get a dedicated local or toll-free fax number or port an existing fax number.otg-group.com · read 11 Oct 2026
Inbound faxing
Yesotg-group.com · read 21 Sep 2026
Integrations
OTG's features page lists Salesforce, HubSpot, Microsoft Teams, Zoho CRM, Slack, WhatsApp API, Google Workspace, and Active Directory in its ecosystem.otg-group.com · read 11 Oct 2026
Mobile apps
Yesotg-group.com · read 21 Sep 2026
Pricing inclusion
vFax is included free on every GoOTG plan, with no extra fees stated on its page.otg-group.com · read 11 Oct 2026
Security
The vFax page says faxes are encrypted in transit and at rest, with role-based access controls and audit logs.otg-group.com · read 11 Oct 2026
Service
vFax lets users send and receive faxes from email, a browser, or any device without fax hardware.otg-group.com · read 11 Oct 2026
Storage
The vFax page advertises unlimited cloud storage.otg-group.com · read 11 Oct 2026
Support
OTG's About page lists support hours as Monday through Friday, 8 AM–8 PM EST, and Saturday, 10 AM–4 PM EST.otg-group.com · read 11 Oct 2026
Supported sectors
The vendor identifies healthcare, legal, finance and banking, and real estate as industries that rely on vFax.otg-group.com · read 11 Oct 2026
Transmission status
Delivery receipts report a timestamp, pages delivered, and recipient confirmation.otg-group.com · read 11 Oct 2026
Virtual fax number
Yesotg-group.com · read 21 Sep 2026
Web portal
The browser portal supports drag-and-drop documents, fax history, and management of multiple fax numbers.otg-group.com · read 11 Oct 2026

The review

Overview

OTG Networks vFax is a cloud service for sending and receiving faxes by email or browser, without fax hardware. It is most compelling for organizations already using GoOTG; the main caveat is that the standalone fax price and usage terms are not as clear as the included GoOTG option.

Businesses can obtain a dedicated local or toll-free fax number or port an existing one. That makes vFax a practical option for teams that need to keep fax workflows while moving away from a physical machine, but buyers comparing standalone fax subscriptions should weigh its stated starting price against the plans’ fax-specific limits and terms.

Key features

Email faxing keeps sending within a familiar workflow: attach a PDF and enter the fax number in the recipient field. Incoming faxes arrive as PDF attachments in the inbox. This suits teams that already handle documents by email, though the described workflow is PDF-based.

The browser portal adds drag-and-drop document sending, fax history, and management of multiple fax numbers. Delivery receipts report a timestamp, pages delivered, and recipient confirmation, a useful record for teams that need to track whether a fax reached its recipient.

OTG says faxes are encrypted in transit and at rest, with role-based access controls and audit logs. It describes vFax as HIPAA compliant and cites 256-bit encryption, full audit logs, and SOC 2 readiness. Those controls are relevant to regulated workplaces, but they do not alone establish that a particular organization’s use meets its compliance obligations. OTG also advertises unlimited cloud storage, removing a stated storage cap.

OTG’s features ecosystem includes Salesforce, HubSpot, Microsoft Teams, Zoho CRM, Slack, WhatsApp API, Google Workspace, and Active Directory. Support hours are Monday through Friday, 8 AM–8 PM EST, and Saturday, 10 AM–4 PM EST.

Pricing

vFax is paid, with pricing from $15/user/mo, and there is no free plan. The separate vFax plan is priced as free and includes sending and receiving faxes plus a dedicated local or toll-free number; it is included free on every GoOTG plan. That is the clearest value proposition for existing GoOTG customers, but it does not establish the cost of buying vFax alone.

GoOTG’s month-to-month plans have broader phone-service features, so they are not simply fax tiers. Starter costs $15 a month and includes unlimited calling, voicemail transcription, mobile and desktop apps, basic analytics, and email support. It suits buyers who want those core GoOTG features alongside included vFax; the tradeoff is basic analytics and email-only support.

Business costs $29 a month, billed month-to-month, and adds AI-powered call routing, advanced analytics, CRM integrations, call recording, and priority support. It is the better fit for teams that need those phone and support capabilities, not merely faxing. Enterprise has custom pricing and adds a dedicated account manager, custom integrations, SLA guarantees, advanced security, and vFax. Its higher-touch terms may suit organizations with specific integration or service-level needs, but the plan’s cost requires a quote.

Platforms

vFax supports Android, iOS, macOS, web, and Windows. Mobile apps are available, while the browser portal provides document sending and number management.

Who it's for

OTG identifies healthcare, legal, finance and banking, and real estate as sectors that rely on vFax. Its HIPAA positioning and stated security controls may matter to regulated teams, while number porting and delivery receipts suit organizations that need continuity and transmission records. It is less persuasive for a buyer seeking a standalone fax plan with clearly defined page quotas and pricing.

Pros and cons

  • Pro: Included at no extra charge on every GoOTG plan, giving existing customers a direct route to fax service without a separate stated fee.
  • Pro: Local and toll-free numbers, number porting, and delivery receipts support business continuity and transmission tracking.
  • Pro: Encryption, role-based access controls, audit logs, and HIPAA positioning address concerns relevant to regulated workflows.
  • Con: No free plan is offered outside the GoOTG inclusion, and the starting price is stated per user per month.
  • Con: The listed plans focus on GoOTG calling features; fax-specific page quotas and standalone plan terms are not part of the plan descriptions.

Alternatives

Online Fax Services is a useful starting point for comparing fax options across the category.

FAX.PLUS is a better fit for readers who want a free tier: it offers 10 pages total, supports Android, iOS, and web, and paid plans include a 30-day free period.

FaxTerra suits light US and Canada senders who want a free allowance of 10 pages monthly without a credit card.

GotFreeFax is worth considering for occasional US and Canada faxing: its free option allows two faxes per day, with up to three pages per fax.

TELUS Cloud Fax is an alternative for buyers wanting one local or toll-free number with a defined 300-page monthly allowance for $14.95 a month.

InterFAX may suit buyers who want prepaid faxing without monthly minimums or fees, or who prefer a service with a free trial.

eGoldFax is another paid option with quote-based pricing.

FaxSalad offers a global fax number and 150 pages each for sending and receiving for $10 a month, making it a defined-volume alternative.

WestFax offers a Solo plan at $14.99 a month for one user and 500 pages per month, which may suit an individual who wants a stated monthly page allowance.

Verdict

Choose OTG Networks vFax if your organization already uses GoOTG and needs business faxing, managed numbers, delivery receipts, and stated security controls without an extra vFax fee. If you are buying fax service on its own, compare alternatives with explicit page allowances and fax-specific pricing before committing.

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