u-boot 1.1.3-IFX-01.01.01.tar.bz2 V3R1
The Wiki of Unify contains information on clients and devices, communications systems and unified communications. - Unify GmbH & Co. KG is a Trademark Licensee of Siemens AG.
The open source software u-boot is part of the OpenStage telephones in this list.
An overview of all used open source software on OpenStage telephones you find in the category page.
Universal Bootloader, provides firmware for many CPU architectures and boards with full source code under GPL.