GTC Cloud-Fax

GTC Cloud-Fax is a cloud service for sending and receiving faxes through a browser, email, or developer interfaces. It suits offices replacing fax hardware and businesses automating fax traffic from their applications. Its parallel workflows and flexible sending credits are useful, but reception numbers and sending have distinct costs and conditions.

Overview

Web, email, and developer-interface workflows can run in parallel. To send by email, address a message to the fax number followed by @fax.tc, attach a document, and receive delivery status by email. Incoming faxes arrive as PDF or TIFF attachments or can be retrieved from a secure reception area. That combination is practical for teams with both occasional manual sends and automated business processes.

GTC supports international sending and virtual fax numbers. Its servers are in Germany, and the service describes itself as GDPR-compliant; SSL access and IP-range restrictions are among its security features. HIPAA support is also listed. For sending, flexible-tariff credits do not expire and only successfully sent pages are charged. A page taking more than 60 seconds is billed proportionally in six-second increments, which can affect the cost of long transmissions.

Key features

• Application automation: REST, SOAP, and SMTP interfaces offer advanced options including multiple recipients and scheduled sending. GTC describes scaling automation from one fax to one million, making this more relevant to organizations with recurring application-based workloads than to buyers seeking only a simple occasional fax.
• Fax administration: Cover sheets, address-book recipients, custom sender IDs, centrally managed users with individual permissions, sending logs, and delivery notifications support shared office workflows. These controls are useful where several people need distinct access and a record of outgoing faxes.
• Developer options: GTC names VB, Java, .NET, C#, and PHP for API use; its developer page separately names Java, PHP, .NET, Ruby, and Salesforce. This gives developers several integration routes, though the named languages and integrations are not identical across the two lists.
• Higher-security sending: A PCI DSS-compliant option is offered for sending credit-card data, at an additional €0.02 plus VAT per fax page. That surcharge matters for high-volume use.
• Support: GTC advertises telephone, email, and chat support, with customer advisors based in Stuttgart.

Pricing

There is no free plan, but a Free test account costs free as a nonbinding test of the flexible tariff; credit can be purchased later. The page also gives 30 pages/month as the monthly allowance, while the named Small package and Medium package provide 30 and 100 fax pages/month respectively, both at custom pricing.

The named paid options have different billing structures, so compare sending volume, destination, and reception needs rather than treating them as interchangeable plans:

• Paket-Lösung – klein: €9.50 a year, billed at 9,50 € inkl. MwSt. / Monat with annual billing and a 12-month minimum term. It includes an 01805 fax number, 30 pages/month for sending and receiving, email use, and faxing to Germany, Western Europe, and the USA. This is the clearest fit for a small office with modest combined traffic that can accept the commitment; 30 monthly pages is restrictive for heavier use.
• Fax reception number – Germany 01805: €11.31 a month, with an €11.31 setup fee and €11.31 monthly base fee, including VAT. It includes 1,000 received pages; each additional received page costs €0.02. Six weeks' notice to month end is required to terminate. The larger included inbound allowance makes it the strongest of the named reception options for substantial German inbound volume.
• Flexibler Tarif – fax credits: €11.90, paid once for a one-time credit purchase, with no monthly commitment and credits that do not expire. Sending costs €0.107 per page including VAT to Germany, Western Europe, and USA landlines; worldwide sending is available at destination-dependent prices. Unused credit is not refunded, so this suits irregular sending only if the purchased credit is likely to be used.
• Fax reception number – Germany 0800: €16.54 a month, with a €16.54 setup fee and monthly base fee, including VAT. It includes 100 received pages; additional pages cost €0.10 each, and termination requires six weeks' notice to month end. The included quota is much smaller than the 01805 option, so higher inbound volume can raise costs quickly.
• Fax reception number – Austria 0043-1: €16.54 a month, with a €16.54 setup fee and monthly base fee, including VAT; 100 received pages are included and each extra page costs €0.10. It is a defined Austrian reception option, with the same small included quota as the Germany 0800 number.
• Fax reception number – Switzerland 0041: €16.54 a month, with a €16.54 setup fee and monthly base fee, including VAT; 100 received pages are included and each extra page costs €0.10. It is available only to Swiss residents, who must provide proof and contact GTC beforehand.

Other named options are a Fax-sending credit at custom pricing, described as prepaid credit for Germany, Western Europe, and USA landline destinations, and a Germany 01805 receiving number at custom pricing with 1,000 received pages/month. Flexible-tariff credit expiry and successful-page billing make the one-time credit option more predictable for sporadic sending, but destination-dependent rates and the no-refund condition still warrant attention.

Platforms

GTC Cloud-Fax supports web and API access. Email is also a sending and receiving workflow, but it is not a separate listed platform. The combination favors desktop office use and system integration rather than buyers seeking a dedicated mobile app.

Who it's for

Small offices can use the web and email workflows, while larger organizations can replace fax servers and automate processes through the developer interfaces. It is a stronger fit when an organization needs inbound and outbound faxing, user permissions, or scheduled application sends. Buyers with low, occasional inbound volume should weigh the setup and recurring charges on reception numbers; those needing only a few sends may prefer a service with a free plan.

Pros and cons

• Pro: Web, email, and developer interfaces can be used in parallel, so teams can combine manual handling with application automation.
• Pro: Flexible credits do not expire, and only successfully sent pages are charged, helping avoid paying for failed sends or unused time-based credit.
• Pro: The German 01805 reception plan includes 1,000 pages, substantially more than the 100-page allowances on the named 0800 and international reception plans.
• Con: There is no free plan, and several named plans use custom pricing, making cost comparison less direct.
• Con: The small package commits buyers to a 12-month minimum, while the Swiss number is limited to Swiss residents and requires prior contact and proof.
• Con: Reception numbers carry setup and monthly fees; low allowances on the 0800 and international options mean extra-page charges can matter.

Alternatives

For a broad comparison, browse Online Fax Services. Choose OTG Networks vFax instead if its listed Android, iOS, macOS, web, and Windows platforms or its $15 a month Starter plan with unlimited calling, voicemail transcription, apps, basic analytics, and email support better match your needs.

Dropbox Fax (formerly HelloFax) is worth considering when a free web option matters: its free plan sends five outbound pages, with up to 20 additional pages earnable, but inbound faxing requires a paid account. FAX.PLUS may suit someone who wants a free allowance of 10 total pages or a paid plan with a 30-day free period.

FaxTerra is an alternative for limited US and Canada sending: its free plan includes 10 pages per month, requires no credit card, and is stated to be free forever. Browserfax offers a web-based free start with 20 pages, while its 25-page pack is a one-time $4.00 USD payment.

GotFreeFax may fit very small US and Canada workloads with up to two free faxes per day, each limited to three pages. FaxSalad is another paid option, with a Standard plan at $10 a month for a global fax number and 150 pages per month each for sending and receiving.

FaxBurner offers a free plan with a disposable number, 25 inbound pages per month, and five outbound pages total.

Verdict

GTC Cloud-Fax is a sound choice for offices and larger organizations that need multiple fax workflows, application automation, and a receiving number matched to their geography and volume. Its strongest case is the ability to combine manual and API-driven work, with non-expiring flexible credits for sending. Look elsewhere if you need a free ongoing plan, a mobile app, or straightforward pricing across all options; setup fees, page quotas, destination rates, and contract terms can shape the real fit.