IP-PBX Customers

With today’s technology, the fax send-receive resource is a software-based function; it’s no longer a hardware thing, and PBX manufacturers are beginning to take advantage of this by making fax an inherent function in the software-based PBX, just like voice messaging. Distributed PBXs need fax relay to move faxes around the distributed system, then either TerminatingT38 or BladeWare is needed for send-receive duties.

AltiGen Communications


AltiGen Communications, Inc. designs and manufactures advanced, IP-PBX telephone systems and IP call centers that leverage both the Internet and the public telephone network. AltiGen products enable applications that take advantage of the convergence of voice and data communications to achieve business results. AltiGen has incorporated Commetrex’ fax technologies, including TerminatingT38, T.38 Fax Relay Software, and the Fax Modem Bundle, into their IP PBX products to implement gateway and terminating fax functions.



Avaya delivers solutions to more than one million businesses worldwide, including more than 90 percent of the FORTUNE 500® companies. Those FORTUNE 500 companies use Avaya solutions for IP telephony, unified communications, contact centers and communications-enabled business processes. To support their product solution, Avaya has acquired Commetrex license technologies including Fax Modem Bundle, and T.38 Fax Relay Software.

Digium® Inc


Digium® Inc., the Asterisk company, is the original creator and primary developer of Asterisk, the industry’s first open source telephony platform. Digium provides quality hardware and software products, including AsteriskNOW™; Asterisk Business Edition™; the Asterisk AA50 Appliance™ hardware-based telephony solution; and Switchvox, a complete turn-key IP PBX solution, to enterprises and telecommunications providers worldwide. Digium’s “Fax For Asterisk” is a commercial facsimile (Fax) termination and origination solution designed to enhance the capabilities of Open Source and commercial Asterisk as well as Switchvox. Fax For Asterisk bundles a suite of user-friendly Asterisk applications and a licensed version of the industry’s leading fax modem software from Commetrex, including TerminatingT38.

Interactive Intelligence Inc


Interactive Intelligence Inc. is a global provider of unified business communications solutions for contact center automation, enterprise IP telephony, and business process automation.The company has developed an all-in-one IP communications software suite that’s scalable and standards-based, offering single-platform architecture with inherent multi-channel processing to deliver comprehensive applications minus the cost and complexity introduced by multi-point vendors. Interactive Intelligence utilizes Commetrex’ licensed technologies, including TerminatingT38, Image Conversion Library, and the Fax Modem Bundle.

Nortel Networks


Nortel Networks’ next-generation technologies, for both service provider and enterprise networks, support multimedia and business-critical applications. Nortel technologies are designed to help eliminate today’s barriers to efficiency, speed and performance by simplifying networks and connecting people to the information they need, when they need it. Nortel uses Commetrex’s 60095-2 speech codec, a resource-efficient implementation of the ITU G.729a/b on the Texas Instruments TMS32C6000 family of DSPs.



ShoreTel provides enterprise IP telephony solutions. ShoreTel’s distributed software architecture and switched-based hardware platform extend enterprise-class voice services to every office and outpost, keeping employees fully connected wherever they go. Incorporated in ShoreTel’s product solution is Commetrex’ T.38 Fax Relay. The benefits to ShoreTel’s customers include the ability to send and receive faxes from a server to any gateway or Internet-ready fax terminal, that is integrated into ShoreTel’s customer systems, providing the highest interoperability available.