NTT Cloud Fax
NTT Cloud Fax is a web-based service for sending and receiving faxes through email, with a virtual fax number and international faxing.
What NTT Cloud Fax is
NTT Cloud Fax is a web-based service for sending and receiving faxes through email, with a virtual fax number and international faxing. Incoming faxes arrive as PDF attachments, while outgoing faxes can be sent as attachments, in an email body, or both. The service supports DOC, PDF, XLS, PPT, and TXT files and sends email notices for successful or failed delivery. Customer email must use Microsoft Exchange or Gmail, connected through an SMTP connector. Each line includes up to five outgoing fax email addresses by default. Outgoing faxes to destinations including the United States, United Kingdom, Australia, Canada, and Japan are included in the per-line service; other destinations are charged per minute. NTT prohibits fax blasting and other high-volume or multi-person faxing, and the service does not work with analogue fax devices. Pricing is on request, with monthly recurring line charges and no prorating. NTT also lists 24-hour, year-round English-language support for elements under its control. It recommends TLS for the SMTP connector and states that personal data stored at rest for over an hour is encrypted using AES-256.
Good
- Incoming faxes arrive as PDF email attachments.
- Supports several common outgoing document formats.
- Email notices report successful or failed delivery.
- Five outgoing fax email addresses are included per line.
- English-language support is available around the clock.
Watch out
- Requires Microsoft Exchange or Gmail with an SMTP connector.
- Not compatible with analogue fax devices.
- High-volume and broadcast faxing are prohibited.
- Other destinations are charged per minute.
Who it suits
It suits organizations that want to manage inbound and outbound fax through Microsoft Exchange or Gmail rather than analogue fax machines. It is not suited to high-volume broadcast faxing, which the service prohibits.
Verdict
NTT Cloud Fax routes fax activity through compatible email software and covers inbound and outbound use. Before choosing it, confirm destination coverage, per-minute charges, and whether the email setup and five-sender default fit your needs.
Plans and prices
From NTT Cloud Fax's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Cloud Fax Service - Per Line | — | up to 5 fax senders per line · unlimited recipients · phone number ordered separately · monthly recurring charge; price defined in service order |
| Cloud Fax Service - Additional User | — | adds one permitted outgoing-fax user · requires at least one per-line service · monthly recurring charge; price defined in service order |
| Outbound faxes - Pay-as-you-go | Priced on request | Worldwide PSTN fax destinations · charged according to NTT's Pay-as-you-go rate card · Per minute for destinations outside the included plan coverage |
| Pay-as-you-go outbound fax | Priced on request | for destinations outside included plan coverage · billed in one-second increments · per-minute consumption charge using NTT rate card |
The facts
Each one read from NTT Cloud Fax's own pages, with the date it was checked.
What it does
- Availability
- NTT says Cloud Fax platforms use on-site redundant high-availability clusters with stateful failover that can preserve calls in progress in many failover scenarios.checked 8 Oct 2026
- BYON integration
- Bring Your Own Numbers can register numbers from another carrier, with SIP trunking and T.38 compatibility required.checked 15 Oct 2026
- Chrome Web Store fax extension
- The opened Chrome Web Store listing for Satellite Office Cloud Phone/Cloud Fax shows 0 out of 5 from 0 ratings; it is offered by Sateraito Office, not NTT DATA.checked 15 Oct 2026
- Data protection
- NTT states that personal data stored at rest for more than one hour is encrypted using AES-256.checked 8 Oct 2026
- Delivery notifications
- Users receive email notifications indicating successful or failed fax delivery.checked 15 Oct 2026
- Destinations
- The per-line service includes outgoing faxes to listed destinations including the United States, United Kingdom, Australia, Canada, and Japan; other destinations are charged per minute.checked 8 Oct 2026
- Email compatibility
- The customer email solution must use Microsoft Exchange or Gmail, with an SMTP connector configured to connect it to NTT Cloud Fax.checked 8 Oct 2026
- Email integrations
- The customer email system must use Microsoft Exchange or Gmail technologies and connect through an SMTP connector.checked 15 Oct 2026
- Encryption at rest
- Personal data stored for more than one hour is encrypted with AES-256.checked 15 Oct 2026
- Fax formats and status
- Supported outgoing formats include DOC, PDF, XLS, PPT, and TXT, and users receive email notices of successful or failed delivery.checked 8 Oct 2026
- Fax protocols
- Incoming fax handling automatically detects T.38 and T.30 protocols.checked 8 Oct 2026
- File formats
- The service lists DOC, PDF, XLS, PPT and TXT as supported outgoing fax formats.checked 15 Oct 2026
- High availability
- NTT states that Cloud Fax platforms use redundant high-availability clusters with stateful failover that can preserve calls in progress in many scenarios.checked 15 Oct 2026
- Inbound faxing
- Incoming faxes arrive as PDF email attachments and the service detects T.38 and T.30 fax protocols automatically.checked 15 Oct 2026
- International destinations
- The per-line plan includes outgoing fax destinations across listed countries in Europe, Asia-Pacific, Africa and the Americas; other destinations use per-minute billing.checked 15 Oct 2026
- International faxing
- Yeschecked 21 Sep 2026
Money
- Billing
- Monthly recurring line charges are billed monthly, overage faxes are charged per minute, and NTT says it does not prorate monthly charges.checked 8 Oct 2026
- Billing policy
- Monthly charges are calculated at month end, NTT does not prorate monthly charges, and removed lines remain chargeable for the full current month.checked 15 Oct 2026
The company
- Company activities (Crunchbase)
- Crunchbase describes NTT DATA as providing consulting, systems integration and IT outsourcing and lists 32 acquisitions.checked 15 Oct 2026
- Company reach (LinkedIn)
- LinkedIn says NTT DATA serves clients in more than 50 countries.checked 15 Oct 2026
- Company size (LinkedIn)
- LinkedIn lists NTT DATA as a public IT-services company with more than 10,001 employees and headquarters in Tokyo.checked 15 Oct 2026
- Founded year
- NTT DATA Group's corporate profile gives an establishment date of May 23, 1988.checked 15 Oct 2026
- HQ and ownership (Crunchbase)
- Crunchbase places NTT DATA in Koto, Tokyo, Japan and identifies NTT, Inc. as its parent organization.checked 15 Oct 2026
Where it runs
- Device limitation
- The service is not compatible with analogue fax devices and works using email software clients such as Outlook or Gmail.checked 8 Oct 2026
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