TeleFlow is very much alive! Engenic has been very busy with our Enterprise products. Typically, functionality trickles down from Enterprise TeleFlow to the Open Source edition. There should be an update to Open Teleflow Before this year is out.
Engenic has no plans to adopt additional manufacturer's boards. If this is something the community desires, someone else will have to take up the charge. Open TeleFlow supports Dialogic Springware analog boards and AudioCodes SmartWorks boards. Enterprise TeleFlow has support for Springware digital boards (ISDN only) and multiple protocols on NMS boards (now owned by Dialogic). We also have plans to adopt Dialogic's HMP in the future.
As for compiling, Open TeleFlow includes the project files for Microsoft Visual C++ and make (.mak) files for Borland. I'm not sure why the Borland project files are not included. I'll have to look into that. In the meantime, there is a command file, Build_TeleFlow_Suite.cmd that should compile all the projects using Borland C++ Builder (assuming it is installed).
Anyone interested in Enterprise TeleFlow and/or immediate support can contact
sales@engenic.com for assistance.