Use 64-pin STM32L processor. Shrink board to 4.5 x 3.75
drwxr-xr-x - Datasheets
-rw-r--r-- 1679 Makefile
-rw-r--r-- 60 attribs
-rw-r--r-- 125 gafrc
drwxr-xr-x - packages
-rw-r--r-- 432 project
drwxr-xr-x - symbols
-rw-r--r-- 134093 telelco.pcb
-rw-r--r-- 47291 telelco.sch