Complete Communications Engineering

Buffalo, NY. 18 June 2012. VOCAL Technologies, Ltd., a leading telecommunications design house, announced the release of their enhanced TR-069 VoIP stack with integrated fax image extraction.  The enhanced VoIP stack may be used for Lawful Interception (LI) of fax transmissions over PSTN or IP networks where flexibility and dynamic reconfiguration of remote LI assets is required to intercept targeted facsimile communications.

TR-069 allows remote management of LI assets and other networked devices as well as auto-provisioning and reconfiguration of devices that can be triggered by network events. For interception of fax transmissions, the LI system detects fax communications activity and identifies the codecs, protocols, routing, and other parameters that will be used during the transfer. If necessary, the LI application can reconfigure itself using TR-069 auto-provisioning to process the communications of interest.

With Fax over IP, SIP signaling and communications content will take separate routes through the network, are unlikely to use the same routing in successive sessions, and may even change routes during a transfer session due to network interruptions or congestion. The LI system has to detect these events and potentially reconfigure LI assets at multiple network interception points to capture the targeted communications. TR-069 offers the flexibility to remotely reconfigure the LI assets and respond to these changes as they occur.

The fax image extraction software is designed to work equally well with either live input or previously recorded data. Depending on the application and communications involved, interception and decoding of the telecommunications may be accomplished in near real-time. If signaling or content messaging is encrypted an additional (and non-real-time) step to decrypt the information is required for post processing by the image extraction applications.

VOCAL’s integrated suite of modular software helps developers rapidly implement highly interoperable standards-based solutions such as Fax Lawful Interception with Fax Image Extraction and TR-069. “Our customers can leverage our integrated software suite to quickly add new features to their applications”, said Dave Jamieson, Business Development at VOCAL, “It reduces system integration efforts to get new products to market more quickly.”


Founded in 1986, VOCAL Technologies, Ltd. is a leading designer of innovative telecommunications and networking solutions for OEM customers worldwide. VOCAL provides next generation communications solutions for a range of Business, Military, and consumer products. The Company is dedicated to providing cost effective software and hardware solutions under license for voice, video, data, and facsimile (fax) applications with support for all major DSP, RISC and CISC processors.  For more information about specific products and services, visit