T38Fax Blog

We provide a robust, standards-based and feature-rich T.38 Fax over IP (FoIP) solution that ensures a uniform and consistently high level of successful fax completion over fax-optimized SIP trunks. In a nutshell, we’re serious about fax. Certification for interoperability with our Power-T.38 service is something we take just as seriously, demanding the same quality and reliability from our partners who wish to have their systems certified for interoperation with our service.

We are pleased to announce that we have successfully completed interoperability testing with MultiTech’s FaxFinder IP fax servers. The FaxFinder IP fax servers were found to provide the stability and reliability that our customers have come to expect, while also providing a rich feature set.

Asterisk is the world’s most widely adopted open source framework for building communications applications. It has been disrupting and redefining the telecommunications sector since its introduction in 1999. We’re very familiar with the power of open source telecommunications software via our work with HylaFAX, and we saw so much potential in Asterisk (and the SIP and IAX-based open telephony movement in general) that we launched our Telephony Depot business unit to cater to that market. It should come as no surprise, then, that our Power-T.38 SIP trunks were engineered with Asterisk in mind, and that Asterisk in its many forms appears prominently on our list of approved/compatible T.38 Fax over IP (FoIP) implementations. Our Asterisk Configuration Guide contains a wealth of information and advice for configuring Asterisk to work with your Power-T.38 fax-optimized SIP trunks, and our support engineers should be able to iron out any problems you do encounter.