--- title: Certify Your T.38-Enabled Device with T38Fax | T38Fax Blog description: Certify your T.38-enabled device with T38Fax to give your customers a reliable, comprehensive FoIP solution. image: https://blog.t38fax.com/hubfs/Interop.png --- [Skip to main content](https://blog.t38fax.com/certify-your-t.38-enabled-device-with-t38fax#blog-content) [![T38Fax](https://www.t38fax.com/images/Logo_Large.svg)](https://www.t38fax.com/) - Who We Serve - [Enterprise Fax Servers RightFax, HylaFAX, GFI FaxMaker](https://www.t38fax.com/solutions/enterprise-fax-servers/) - [Voice Service Providers T.38 offload for ITSPs & UCaaS](https://www.t38fax.com/solutions/voice-service-providers/) - [Business Fax Connectivity ATAs, IP-PBXs, fax machines](https://www.t38fax.com/solutions/business-fax-connectivity/) - [Our Solution](https://www.t38fax.com/power-t38/) - [Why T38Fax](https://www.t38fax.com/why-t38fax/) - [Pricing](https://www.t38fax.com/pricing/) - Resources - [Compatibility List T.38-certified devices & setup guides](https://www.t38fax.com/compatibility/) - [Knowledge Base Setup guides, FAQs & troubleshooting](https://helpdesk.t38fax.com/hc/en-us/) - [Blog Fax technology & industry insights](https://blog.t38fax.com/) - [Security & Compliance HIPAA, SOC 2, encryption options](https://www.t38fax.com/security/) - Company - [About Us Our story and team](https://www.t38fax.com/about-us/) - [Testimonials See our customer reviews](https://www.t38fax.com/testimonials/) - [Partners Reseller & integration partnerships](https://www.t38fax.com/partners/) - [Contact Us Sales, support & general enquiries](https://www.t38fax.com/contact/) - [Careers Open positions at T38Fax](https://www.t38fax.com/careers/) [Customer Portal](https://my.t38fax.com/) [Start Free Trial](https://my.t38fax.com/signup) - Who We Serve - [Enterprise Fax Servers](https://www.t38fax.com/solutions/enterprise-fax-servers/) - [Voice Service Providers](https://www.t38fax.com/solutions/voice-service-providers/) - [Business Fax Connectivity](https://www.t38fax.com/solutions/business-fax-connectivity/) - [Our Solution](https://www.t38fax.com/power-t38/) - [Why T38Fax](https://www.t38fax.com/why-t38fax/) - [Pricing](https://www.t38fax.com/pricing/) - Resources - [Compatibility List](https://www.t38fax.com/compatibility/) - [Knowledge Base](https://helpdesk.t38fax.com/hc/en-us/) - [Blog](https://blog.t38fax.com/) - [Security & Compliance](https://www.t38fax.com/security/) - Company - [About Us](https://www.t38fax.com/about-us/) - [Testimonials](https://www.t38fax.com/testimonials/) - [Partners](https://www.t38fax.com/partners/) - [Contact Us](https://www.t38fax.com/contact/) - [Careers](https://www.t38fax.com/careers/) - [Customer Portal](https://my.t38fax.com/) [Start Free Trial](https://my.t38fax.com/signup) [All Posts](https://blog.t38fax.com) Interoperability # Certify Your T.38-Enabled Device with T38Fax [Dana Meltzer](https://blog.t38fax.com/author/dana-meltzer) · December 14, 2017 [Post](https://twitter.com/intent/tweet?url=https%3A%2F%2Fblog.t38fax.com%2Fcertify-your-t.38-enabled-device-with-t38fax&text=Certify+Your+T.38-Enabled+Device+with+T38Fax) [Share](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fblog.t38fax.com%2Fcertify-your-t.38-enabled-device-with-t38fax) ![Interop.png](https://blog.t38fax.com/hs-fs/hubfs/Interop.png?width=320&name=Interop.png)Do you manufacture or represent a product such as a VoIP gateway, ATA, fax server or other such device that supports T.38 Fax Over IP (FoIP)? Do you frequently hear from customers having trouble getting T.38 to work reliably in their environment? If so, do you wish you could recommend a SIP trunk provider who specializes in T.38 and offers carrier-grade T.38 termination and origination to pair with your equipment? Well I have great news for you, ... we do that.   Believe it or not, we sell SIP trunks whose only purpose in life is to offer reliable fax transmission! We use our own T.38 technology, backed by a team of fax industry veterans to deliver a truly carrier-grade level of service that rivals the PSTN. We also have a team of engineers that work hard testing T.38-enabled equipment to make sure it works seamlessly with our Power-T.38 service.   Once a device is interop certified, we post a knowledge base  article on our support site and publicize it on our  blog. We make sure your customers have the  configuration guides and support they need to get their equipment up and running quickly and easily, and in the unlikely event they encounter a problem, our experienced support engineers will help them troubleshoot. You can rest easy knowing that your customers have a reliable, comprehensive solution for their FoIP needs.   Ready to get certified? Click on the link below to read more about our partner program and get started. [![Visit Our Interop Partner Page](https://no-cache.hubspot.com/cta/default/447672/e2f2b7cc-c045-4f42-ba91-2a136ff990b1.png)](https://cta-redirect.hubspot.com/cta/redirect/447672/e2f2b7cc-c045-4f42-ba91-2a136ff990b1)   [Interoperability](https://blog.t38fax.com/topic/interoperability) Ready to fix your fax? 30-day free trial. $25 credit included. No contracts. [Start Free Trial](https://my.t38fax.com/signup) [Request a Quote](https://www.t38fax.com/contact/) This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. Subscribe to Email Updates ### Subscribe Here! ### Top Posts ### Posts by Topic - [Interoperability (24)](https://blog.t38fax.com/topic/interoperability) - [Insider (12)](https://blog.t38fax.com/topic/insider) - [Tech Tips (5)](https://blog.t38fax.com/topic/tech-tips) [![T38Fax](https://www.t38fax.com/images/Logo_Large.svg)](https://www.t38fax.com/) The fax carrier built by fax people. Reliable T.38 fax over IP at scale. 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All rights reserved. - [Terms of Service](https://www.t38fax.com/terms-of-service/) - [Privacy Policy](https://www.t38fax.com/privacy-policy/) - [Acceptable Use](https://www.t38fax.com/acceptable-use-policy/) ```json { "@context" : "https://schema.org", "@type" : "Article", "author" : { "@type" : "Person", "name" : "Dana Meltzer" }, "dateModified" : "2026-07-22T20:30:11", "datePublished" : "2017-12-14T18:10:55", "description" : "Certify your T.38-enabled device with T38Fax to give your customers a reliable, comprehensive FoIP solution.", "headline" : "Certify Your T.38-Enabled Device with T38Fax", "image" : "https://foip.t38fax.com/hubfs/Interop.png", "isPartOf" : { "@type" : "Blog", "name" : "T38Fax Blog", "url" : "https://blog.t38fax.com/" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.t38fax.com/images/t38fax-logo.png" }, "name" : "T38Fax", "url" : "https://www.t38fax.com" }, "url" : "https://blog.t38fax.com/certify-your-t.38-enabled-device-with-t38fax" } ``` ```json { "@context" : "https://schema.org", "@type" : "BreadcrumbList", "itemListElement" : [ { "@type" : "ListItem", "item" : { "@id" : "https://www.t38fax.com/" }, "name" : "Home", "position" : 1 }, { "@type" : "ListItem", "item" : { "@id" : "https://blog.t38fax.com/" }, "name" : "Blog", "position" : 2 }, { "@type" : "ListItem", "item" : { "@id" : "https://blog.t38fax.com/certify-your-t.38-enabled-device-with-t38fax" }, "name" : "Certify Your T.38-Enabled Device with T38Fax", "position" : 3 } ] } ```