--- a/FC-handset-spec	Fri Apr 15 06:03:18 2022 +0000
+++ b/FC-handset-spec	Fri Apr 15 06:28:41 2022 +0000
@@ -1853,17 +1853,15 @@
   color" UI configuration (as opposed to the existing bigcolor and smallbw),
   whereas the existing smallbw config is a freebie gift from TI.
 
-* No musical ringtones, just one extremely basic ringing sound - implementing
-  musical ringtones for the buzzer would be C139-specific work which is not
-  needed for the main goal of FC Libre Dumbphone, which will use Melody E1
-  ringing instead.
-
-* No support for actual headsets in the headset jack!  The headset jack on all
-  Mot C1xx phones serves a dual function, it is both an analog headset interface
-  and a digital interface for computer connection (UART at 2.8V logic levels),
-  and in FreeCalypso we absolutely require the computer interface function of
-  this jack - it is essential for development and debugging.  Therefore, the
-  "ordinary end user" function of the headset jack is lost.
+* No dynamic mode switching support on the headset jack: this jack on all C1xx
+  phones serves a dual function, it is both an analog headset interface and a
+  digital interface for computer connection (UART at 2.8V logic levels), and I
+  currently have no plans to implement dynamic switching between these two
+  modes.  There will be one firmware build configuration in which the jack
+  accepts Motorola headsets - serial cables won't work unless you shut down the
+  fw and operate on the phone with tools like fc-loadtool, fc-simint or our FC
+  FFS editor - and another fw build configuration in which the headset jack
+  accepts serial cables, but not actual headsets.
 
 In summary, FreeCalypso Lite on Motorola C139 will be an *extremely* basic and
 "bare bones" phone - but the hope is that it would still be useful to some.