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Our company was founded on two guiding principles:

  • Sell a high quality product
  • Back that product up with exceptional technical support and customer service

In other words, we don’t just support the product... support IS the product.

Popular Articles


  • Overview T38Fax owns 8.34.182.0/24 (AS7324) and 8.20.91.0/24 (AS396431), and all of our services operate out of these address blocks. We use SIP over UDP for call signaling. For outbound calling and registration via SIP, you can eith...

  • FreePBX March 04th, 2019 FreePBX The "Free" Stands for Freedom FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server. FreePBX...

  • FreePBX March 04th, 2019 FreePBX The "Free" Stands for Freedom FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server. FreePBX...

  • FreePBX March 04th, 2019 FreePBX The "Free" Stands for Freedom FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server. FreePBX...

  • TBA

  • Follow the steps below to configure HylaFAX Enterprise with your T38Fax.com credentials: Connect to the Appliance Console -- the menu area you see on screen when you boot the HylaFAX Enterprise Appliance server (not the web interfa...

  • Grandstream's HT series of Analog Telephone Adapters (ATAs) offers a ton of features at an affordable price point. They are trusted and deployed by some of the world's largest service providers. The HT813 is a 1-port FX...

  • The Grandstream GXW4200 series FXS Gateways provide a unique featureset, catering to very specific deployment requirements. Up to 48 FXS Ports, model dependant, allowing for SIP registration individually at the port level, or yo...

  • Grandstream’s HT series of Analog Telephone Adapters (ATAs) offer a ton of features at an affordable price point. They are trusted and deployed by some of the world's largest service providers. The HT502 is a dual-port FXS, ...

  • Obihai OBi202 Related Links: Manufacturer's Website Firmware Updates Purchase Online Currently Recommended Firmware: v3.1.2 5998 T38fax.com has officially certified these devices after completing rigorous tes...

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