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GTC Cloud-Fax

gtc.de

Free plan WebAPI
Visit gtc.de
Spec score 8.9 #8 of 102 in Online fax services

What it is

GTC Cloud-Fax is a cloud service for sending and receiving faxes online without a fax machine or fax server. Users can work through a web interface, email, or developer interfaces, including REST, SOAP, and SMTP, and can use those routes in parallel. For email sending, the destination fax number is combined with @fax.tc; delivery status comes back by email. Received faxes can arrive as PDF or TIFF attachments or be retrieved through a secure reception area. Fax-management tools include cover sheets, address-book recipients, custom sender IDs, centrally managed users with individual permissions, logs, and delivery notifications. GTC describes application automation at scales from one fax to one million. The maker says its servers are in Germany and lists GDPR compliance, SSL access, and IP-range restrictions; HIPAA support is also listed. A free test account is available at free. Paid options include Paket-Lösung – klein at €9.50 a year, billed annually, and fax credits at €11.90, paid once. The credits do not expire, but unused credit is not refundable.

Spec sheet

Product
GTC Internet-Fax is a cloud fax service for sending and receiving faxes online without a fax machine or fax server.Read 11 Oct 2026 · gtc.de
Intended users
The maker presents the service for both small offices and large corporations replacing fax servers, including use through APIs to automate business processes.Read 11 Oct 2026 · gtc.de
Free plan
NoRead 21 Sep 2026 · gtc.de
Support
GTC advertises telephone, email, and chat support, with customer advisors based in Stuttgart.Read 11 Oct 2026 · gtc.de
Founded
1987Read 28 Sep 2026 · gtc.de
API protocols
The product offers REST, SOAP, and SMTP interfaces, with advanced API features such as multiple recipients and scheduled sending.Read 11 Oct 2026 · gtc.de
Automation and scale
The developer page describes a scalable cloud service for automating fax sending from applications, from one fax to one million faxes.Read 11 Oct 2026 · online-fax.info
Compliance support
hipaa and gdprRead 21 Sep 2026 · gtc.de
Developer languages and integrations
The maker lists VB, Java, .NET, C#, and PHP for API use, and separately lists Java, PHP, .NET, Ruby, and Salesforce on its developer page.Read 11 Oct 2026 · online-fax.info
Email workflow
To send by email, users address a message to the fax number followed by @fax.tc, attach a document, and receive delivery status by email.Read 11 Oct 2026 · gtc.de
Fax management
The service supports cover sheets, address-book recipients, custom sender IDs, centrally managed users with individual permissions, sending logs, and delivery status notifications.Read 11 Oct 2026 · gtc.de
Fax reception
Received faxes can be delivered as PDF or TIFF attachments by email or retrieved through the secure fax reception area.Read 11 Oct 2026 · gtc.de
High-security options
The maker offers a PCI DSS-compliant solution for sending credit-card data, with an extra charge of €0.02 plus VAT per fax page for sending.Read 11 Oct 2026 · online-fax.info
Inbound faxing
YesRead 21 Sep 2026 · gtc.de
International faxing
YesRead 21 Sep 2026 · gtc.de
Monthly page allowance
30Read 21 Sep 2026 · gtc.de
Security and location
The maker says its servers are located in Germany, describes the service as GDPR-compliant, and lists SSL access and IP-range restrictions among its security features.Read 11 Oct 2026 · gtc.de
Sending and receiving
Users can send and receive faxes through a web interface, email, or developer interfaces, and use these methods in parallel.Read 11 Oct 2026 · gtc.de
Sending limits and billing
Flexible-tariff credits do not expire, only successfully sent pages are charged, and pages taking more than 60 seconds are billed proportionally in six-second increments.Read 11 Oct 2026 · online-fax.info
Virtual fax number
YesRead 21 Sep 2026 · gtc.de

Plans and prices

Small package Price not published 30 fax pages/month Read 21 Sep 2026 · online-fax.info
Medium package Price not published 100 fax pages/month Read 21 Sep 2026 · online-fax.info
Fax-sending credit Price not published Prepaid sending credit · Credit does not expire · Germany, Western Europe, and USA landline destinations Read 21 Sep 2026 · online-fax.info
Germany 01805 receiving number Price not published 1,000 received pages/month Read 21 Sep 2026 · online-fax.info
Germany 0800 receiving number Price not published 100 received pages/month Read 21 Sep 2026 · online-fax.info
Free test account Free Free, nonbinding test; the page does not state a trial duration Test the flexible tariff · buy credit later if desired Read 11 Oct 2026 · online-fax.info
Paket-Lösung – klein €9.50 a year 9,50 € inkl. MwSt. / Monat; jährliche Abrechnung; minimum term 12 months 01805 fax number · 30 pages/month included for sending and receiving · email use · faxing to Germany, Western Europe, and the USA Read 11 Oct 2026 · online-fax.info
Fax reception number – Germany 01805 €11.31 a month €11.31 setup fee plus €11.31 monthly base fee, incl. VAT 1,000 received pages included · €0.02 per additional received page · terminable with six weeks' notice to month end Read 11 Oct 2026 · online-fax.info
Flexibler Tarif – fax credits €11.90, paid once One-time credit purchase; credits do not expire; no monthly commitment €11.90 credit package · page price €0.107 incl. VAT for Germany, Western Europe, and USA landlines · worldwide sending available at destination-dependent prices · no refund for unused credit Read 11 Oct 2026 · online-fax.info
Fax reception number – Austria 0043-1 €16.54 a month €16.54 setup fee plus €16.54 monthly base fee, incl. VAT 100 received pages included · €0.10 per additional received page · terminable with six weeks' notice to month end Read 11 Oct 2026 · online-fax.info
Fax reception number – Germany 0800 €16.54 a month €16.54 setup fee plus €16.54 monthly base fee, incl. VAT 100 received pages included · €0.10 per additional received page · terminable with six weeks' notice to month end Read 11 Oct 2026 · online-fax.info
Fax reception number – Switzerland 0041 €16.54 a month €16.54 setup fee plus €16.54 monthly base fee, incl. VAT 100 received pages included · €0.10 per additional received page · Swiss residents only, with proof and prior contact Read 11 Oct 2026 · online-fax.info

Every GTC Cloud-Fax plan and price →

Strong points and limits

Strong points

  • Send and receive through web, email, or APIs.
  • Offers REST, SOAP, and SMTP interfaces.
  • Received faxes can be PDF or TIFF.
  • Credits do not expire.
  • Includes centrally managed users and permissions.

Limits

  • No free plan, despite a free test account.
  • Unused fax credit is not refundable.
  • Small package requires a 12-month minimum term.
  • Some receiving numbers have setup and monthly fees.

Who it suits

It suits offices and larger organizations that need online faxing, including teams automating fax workflows through APIs. The combination of receiving-number options and prepaid credits may suit different fax volumes and destinations.

Verdict

GTC Cloud-Fax supports both manual and automated fax workflows, with multiple interface options and receiving-number plans. Check the specific destination, included page allowance, and billing terms before choosing a plan.

Where Specifiction places it

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