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OTG Networks vFax review

#15 of 102 in Online Fax Services

A secure cloud fax option with broad access, but limited integration depth.

7.6/10Editor score
Visit OTG Networks
OTG Networks vFax7.6 Visit OTG Networks

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

OTG Networks vFax is a cloud-based fax service for businesses that need to send and receive faxes without physical hardware. It supports email-to-fax with PDF attachments, fax-to-email delivery, browser-based faxing, mobile and desktop apps, and dedicated local or toll-free fax numbers. Teams that need access controls, audit logs, encrypted transmission and storage, or HIPAA-focused capabilities are the clearest fit. Number porting and real-time delivery confirmations also support organizations moving an existing fax workflow online.

Pricing needs context because vFax is presented as an included feature of OTG Networks’ GoOTG business communications plans rather than as a separately priced product. The published Starter plan is $15 per user per month, billed monthly, and includes unlimited calling, voicemail transcription, mobile and desktop apps, basic analytics, and email support. Business costs $29 per user per month and adds AI-powered call routing, advanced analytics, CRM integrations, call recording, and priority support. Enterprise lists a dedicated account manager, custom integrations, SLA guarantees, advanced security, and vFax included with GoOTG plans.

The main strength is coverage across common fax channels combined with administrative controls suited to business workflows. Web, Windows, macOS, iOS, and Android support give users multiple access points, while delivery confirmations help track transmission status. The integration footprint is narrower, with Slack listed as the integration, so teams seeking a broader connected workspace may need to assess fit carefully. Organizations wanting secure fax basics, number porting, and role-based administration should consider vFax; those prioritizing a standalone fax subscription or a wider integration ecosystem may prefer another service.

OTG Networks vFax pros and cons

  • Where it wins
    • Email, web, mobile, and desktop faxing
    • Encrypted transmission, audit logs, and role-based access
    • Local or toll-free numbers with number porting
  • Where it doesn't
    • Only Slack is listed as an integration
    • vFax is presented within GoOTG communications plans
    • The entry plan has fewer advanced communications features

OTG Networks vFax fact sheet, pricing and score →

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