--- title: Online Faxing Blog | Fax Industry News & More | T38Fax (2) description: Subscribe to the T38Fax blog and get email updates. Stay on top of fax industry news and learn about the nuances of T.38 faxing from our industry experts. (2) image: https://www.t38fax.com/images/t38fax-og-default.jpg --- [Skip to main content](https://blog.t38fax.com/page/2#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) # T38Fax Blog Fax technology, interoperability certifications, and industry insights. Interoperability Mar 8, 2018 ## [FreeSWITCH Officially Certified](https://blog.t38fax.com/freeswitch-officially-certified) [![freeswitch-certified.png](https://blog.t38fax.com/hubfs/freeswitch-certified.png)](https://blog.t38fax.com/freeswitch-officially-certified) We are pleased to announce that we have successfully completed interoperability testing with [FreeSWITCH](https://freeswitch.org), a powerful open source telephony platform capable of routing and connecting various communication protocols such as audio, video or text. FreeSWITCH was designed by several former developers of the popular [Asterisk](https://www.asterisk.org) open source PBX and was created to address the drawbacks of proprietary solutions with a focus on key design goals such as stability and scalability. Today, FreeSWITCH is used by thousands of businesses from all corners of the globe in a range of industries, including carriers, communication startups and enterprise businesses. At its core,  Dana Meltzer · [Read more](https://blog.t38fax.com/freeswitch-officially-certified) Interoperability Feb 20, 2018 ## [FusionPBX Officially Certified](https://blog.t38fax.com/fusionpbx-officially-certified) [![fusionpbx-certified.png](https://blog.t38fax.com/hubfs/fusionpbx-certified.png)](https://blog.t38fax.com/fusionpbx-officially-certified) We’re excited to announce that we've successfully completed interoperability testing with [FusionPBX](https://www.fusionpbx.com), a popular web front-end to [FreeSWITCH](https://freeswitch.org), the legendary cross-platform scalable (and free) multi-protocol softswitch.  In simple terms, FusionPBX is to FreeSwitch as FreePBX is to Asterisk - in other words it’s FreeSWITCH for mere mortals. FreeSWITCH is a powerful and scalable voice switch used by many of the world’s leading telecommunications service providers and a large percentage of businesses worldwide, but it has a pretty steep learning curve and can take weeks, if not months to master.  FusionPBX adds extra functionality to the FreeSwitch platform while making it easy to administer via an attractive Dana Meltzer · [Read more](https://blog.t38fax.com/fusionpbx-officially-certified) Tech Tips Jan 2, 2018 ## [ECM - T.38's Dirty Little Secret (And Why It Matters)](https://blog.t38fax.com/blog/ecm-t38-dirty-little-secret) [![ECM - T.38's Dirty Little Secret (And Why It Matters)](https://blog.t38fax.com/hubfs/Blog/Got-ECM-800x600.jpg)](https://blog.t38fax.com/blog/ecm-t38-dirty-little-secret) I'm going to let you in on a secret: it’s impossible to fax reliably over most VoIP services (SIP trunks) being sold these days, no matter how well you understand and implement T.38 Fax Over IP (FoIP), because the product you’re buying is fundamentally broken. As crazy as it sounds, it’s missing the one feature that makes sure the other side receives an exact copy of your image: [Error Correction Mode (ECM)](https://helpdesk.t38fax.com/hc/en-us/articles/360052596012-ECM). Each day, millions of fax pages are sent via T.38 circuits that [don’t have ECM enabled,](https://foip.t38fax.com/ecm-self-test) and everyone just kind of hopes the fax pages make it to the other side intact. Sounds crazy? We agree!! ### What is ECM and why is it important? Fax is a page-by-page transmission method, usually done over standard telephone lines. The image data from each page is converted into an audio representation of the page, the audio is sent to the other side, and when both parties are ready, they move on to the next page. Now, the clever people who invented the fax protocol realized that phone lines are imperfect and that every once in a while there will be a pop, crackle, hum or hiss that distorts that audio signal, leading to loss of fax page image data. That's where ECM comes in – at the end of each page, the sender and the receiver compare notes, check for any missing or distorted page image data, and then selectively re-transmit only that data. Again they compare notes, and if there's still missing data they repeat the process, only moving to the next page when the current page is 100% correct. When ECM is not available, however, the end-of-page procedure is quite different, and error checking and error correction ability is limited. Darren Nickerson · [Read more](https://blog.t38fax.com/blog/ecm-t38-dirty-little-secret) Insider Dec 18, 2017 ## [T38Fax and Telinta Partner to Offer Fax Solutions for VoIP Service Providers](https://blog.t38fax.com/telintapartnership) [![T38Fax and Telinta Partner to Offer Fax Solutions for VoIP Service Providers](https://blog.t38fax.com/hubfs/Telinta-Logo-web.gif)](https://blog.t38fax.com/telintapartnership) T38Fax knows that providing and supporting reliable Fax over IP (FoIP) can be a key differentiator for VoIP service providers. VoIP networks are optimized for voice services, not fax, making it challenging for these service providers to support FoIP. That’s why we partnered with [Telinta](https://www.telinta.com), a global leader in cloud-based white label switching and billing solutions for VoIP service providers and their resellers. Their portfolio includes business and residential VoIP, hosted PBX, audio-conferencing, calling card, pinless, mobile, callback and wholesale VoIP. By [working together](https://www.prweb.com/releases/2017/12/prweb14975888.htm), we can deliver reliable fax solutions to VoIP service providers. Dana Meltzer · [Read more](https://blog.t38fax.com/telintapartnership) Interoperability Dec 14, 2017 ## [Certify Your T.38-Enabled Device with T38Fax](https://blog.t38fax.com/certify-your-t.38-enabled-device-with-t38fax) [![Interop.png](https://blog.t38fax.com/hubfs/Interop.png)](https://blog.t38fax.com/certify-your-t.38-enabled-device-with-t38fax) 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  Dana Meltzer · [Read more](https://blog.t38fax.com/certify-your-t.38-enabled-device-with-t38fax) Interoperability Nov 14, 2017 ## [Grandstream UCM Series IP PBXs Officially Certified](https://blog.t38fax.com/grandstream-ucm-series-ip-pbxs-officially-certified) [![UCM6100\_combination\_straight-interop-certified.png](https://blog.t38fax.com/hubfs/UCM6100_combination_straight-interop-certified.png)](https://blog.t38fax.com/grandstream-ucm-series-ip-pbxs-officially-certified) We are pleased to announce that we have successfully completed interoperability testing with another line of [Grandstream](https://www.grandstream.com)'s products, [its UCM series IP PBXs](https://www.grandstream.com/products/ip-pbxs/ucm-series-ip-pbxs). Grandstream Networks, Inc. has offered SIP Unified Communications solutions since 2002, and its products have been recognized for their quality, reliability, and innovation. Specifically, the Grandstream IP PBXs allow businesses to unify multiple communication technologies, such as voice, video calling, video conferencing, video surveillance, data tools, mobility options and facility access management onto one common network that can be managed and/or accessed remotely. Grandstream's UCM series IP PBXs include a suite of devices that can anchor a business's communications network solution and support from 500 to 2000 users. The [Grandstream UCM6100 series](https://www.grandstream.com/products/ip-pbxs/ucm-series-ip-pbxs) and [UCM6200 series IP PBXs](https://www.grandstream.com/products/ip-pbxs/ucm-series-ip-pbxs/product/ucm6200-series) are similar, but the UCM6200 series can support more users (up to 800) and more concurrent calls (up to 100), The [Grandstream UCM6510 IP PBX](https://www.grandstream.com/products/ip-pbxs/ucm-series-ip-pbxs/product/ucm6510) supports E1, T1, and J1 networks and offers scalability by supporting up to 2000 users. These secure and reliable devices deliver unified communications features without any licensing fees, costs-per-feature, or recurring fees. Like other Grandstream products, the IP PBXs include extensive support for T.38. That means they can connect directly to our fax-optimized SIP trunks using our Power-T.38 service. Or these products can talk to us through Dana Meltzer · [Read more](https://blog.t38fax.com/grandstream-ucm-series-ip-pbxs-officially-certified) Interoperability Aug 17, 2017 ## [Grandstream HT800 Series ATAs Officially Certified](https://blog.t38fax.com/grandstream-ht800-series-atas-officially-certified) [![Grandstream HT800 Series ATAs Officially Certified](https://blog.t38fax.com/hubfs/social-suggested-images/HT802V2_1-interop-2.png)](https://blog.t38fax.com/grandstream-ht800-series-atas-officially-certified) We are pleased to announce that we have successfully completed interoperability testing with Grandstream’s HT800 series ATAs. [Grandstream Networks, Inc.](https://www.grandstream.com) has offered SIP Unified Communications solutions since 2002, and its products have been recognized for their quality, reliability, and innovation. The HT series of ATAs delivers powerful VoIP technology and routing capabilities to home and office environments, and allows users to successfully connect their analog devices to a manageable, robust network. Built using Grandstream’s market-leading SIP ATA/gateway technology, with millions of units successfully deployed worldwide, these powerful ATAs feature exceptional voice quality in various applications and environments. The HT800 series of ATAs includes 4 different models, giving customers the flexibility to choose the right device Dana Meltzer · [Read more](https://blog.t38fax.com/grandstream-ht800-series-atas-officially-certified) Insider Aug 15, 2017 ## [Independent Software Vendors Can Now Offer A Complete Fax Solution With T38Fax's Reliable FoIP Service](https://blog.t38fax.com/t38faxs-foip-solution-delivers-for-independent-software-vendors) [![Independent Software Vendors Can Now Offer A Complete Fax Solution With T38Fax's Reliable FoIP Service](https://blog.t38fax.com/hubfs/Fax%20Servers.png)](https://blog.t38fax.com/t38faxs-foip-solution-delivers-for-independent-software-vendors) Do you remember the good old days, when things were simple? In the early days of fax, you used physical fax boards and servers, connected to real, tangible ISDN PRI T1 lines. Traditional phone lines were circuit-switched, which is a fancy way of saying they were optimized to deliver perfect audio every time, independent of conditions. Faxing was error free. The physical hardware worked well. Then came progress. And three things happened to disrupt the status quo: Dana Meltzer · [Read more](https://blog.t38fax.com/t38faxs-foip-solution-delivers-for-independent-software-vendors) Interoperability Jul 17, 2017 ## [AudioCodes MediaPack 1xx Gateways Officially Certified](https://blog.t38fax.com/audiocodes-mediapack-1xx-gateways-officially-certified) [![audiocodes-certified.png](https://blog.t38fax.com/hubfs/audiocodes-certified.png)](https://blog.t38fax.com/audiocodes-mediapack-1xx-gateways-officially-certified) We are pleased to announce that we have successfully completed interoperability testing with AudioCodes’ MediaPack 1xx series of analog media gateways. [AudioCodes](https://www.audiocodes.com) designs, develops and sells advanced Voice-over-IP (VoIP), converged VoIP and Data networking products and communications applications for Service providers and Enterprises. AudioCodes is a VoIP technology market leader focused on converged VoIP and data communications and its products are deployed globally in Broadband, Mobile, Cable, and Enterprise networks. AudioCodes’ MediaPack 1xx series gateways are cost-effective, stand-alone VoIP gateways that provide superior voice technology for connecting legacy telephones, fax machines, and PBX systems with IT telephony networks and IP-based PBX systems. These gateways have up to 24 analog ports, provide superior voice technology, and offer a rich set of advanced telephony features. They are also T.38 fax compliant, which makes them a great fit  Dana Meltzer · [Read more](https://blog.t38fax.com/audiocodes-mediapack-1xx-gateways-officially-certified) Insider Jul 14, 2017 ## [T38Fax Incorporated and VoIP Innovations: A Partnership Worth Experiencing](https://blog.t38fax.com/t38fax-incorporated-and-voip-innovations-a-partnership-worth-experiencing) [![T38Fax Incorporated and VoIP Innovations: A Partnership Worth Experiencing](https://blog.t38fax.com/hubfs/Voip%20innovations%20fax%20pic.png)](https://blog.t38fax.com/t38fax-incorporated-and-voip-innovations-a-partnership-worth-experiencing) Guest author, Natalie DeCario, is the Marketing Manager at [VoIP Innovations](https://voipinnovations.com), a wholesale VoIP provider that specializes in providing Origination, Termination, E911, Hosted Billing, Fraud Detection, and an End User Portal. Some will argue that the key to an ITSP’s (Internet Telephony Service Provider) success is to add the combination of choice, automation, and control to their business strategy. This is especially important when trying to reduce the time it takes to keep up with the clerical, yet necessary tasks such as billing customers, porting DIDs, and originating and terminating DIDs. While these tasks keep an ITSP afloat, they are also causing owners to slow down their operations and over clutter their agenda with tactical efforts that take away from strategy and bottom line. Fortunately, VoIP Innovations has created a platform that allows ITSPs to use technology to receive the choice,  Natalie DeCario · [Read more](https://blog.t38fax.com/t38fax-incorporated-and-voip-innovations-a-partnership-worth-experiencing) [« Prev](https://blog.t38fax.com/page/1) [1](https://blog.t38fax.com/page/1) 2 [3](https://blog.t38fax.com/page/3) [4](https://blog.t38fax.com/page/4) [5](https://blog.t38fax.com/page/5) [Next »](https://blog.t38fax.com/page/3) 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 (13)](https://blog.t38fax.com/topic/insider) - [Tech Tips (6)](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. 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