--- a/doc/TCH-bit-access	Wed May 24 07:22:32 2023 +0000
+++ b/doc/TCH-bit-access	Tue Jun 06 04:28:21 2023 +0000
@@ -193,16 +193,10 @@
 DSP ROM version 3606.  (DSP ROM version 3416 together with the respective patch
 version also appears to have working AMR, at least in light testing, although
 of course we do NOT recommend it for production use.)  Therefore, if you wish
-to play with EFR, you need to tell the network (via the Bearer Capabilities
+to play with EFR, you need to tell the network (via the Bearer capability
 information element in CC messages) that your MS does not support AMR, and if
 you wish to play with FR1, you need to tell the network that your MS only
 supports FR1 and no others.
 
-The outstanding issue here is that we need to implement some mechanism in our
-FreeCalypso firmwares, probably a custom AT command, that will modify the
-Bearer Capabilities IE (artificially restrict the set of supported codecs) on a
-per-call basis.  Until we implement the necessary support, the only current way
-to create such codec-restricted operation is by writing a /pcm/MSCAP file into
-FFS with the desired bit mask of supported codecs - but this method is hugely
-inconvenient because this file is read only on fw boot, thus every modification
-requires a full reboot cycle.
+Please refer to Speech-codec-selection article in freecalypso-docs for more
+information and specific instructions.