File list (Check if you may need any files):
gsm-1[1].0.6
............\gsm-1.0-pl6
............\...........\add-test
............\...........\........\add_test.c
............\...........\........\add_test.dta
............\...........\bin
............\...........\ChangeLog
............\...........\COPYRIGHT
............\...........\inc
............\...........\...\config.h
............\...........\...\gsm.h
............\...........\...\private.h
............\...........\...\proto.h
............\...........\...\toast.h
............\...........\...\unproto.h
............\...........\INSTALL
............\...........\lib
............\...........\MACHINES
............\...........\Makefile
............\...........\man
............\...........\...\bitter.1
............\...........\...\gsm.3
............\...........\...\gsm_explode.3
............\...........\...\gsm_option.3
............\...........\...\gsm_print.3
............\...........\...\toast.1
............\...........\MANIFEST
............\...........\README
............\...........\src
............\...........\...\add.c
............\...........\...\code.c
............\...........\...\debug.c
............\...........\...\decode.c
............\...........\...\gsm_create.c
............\...........\...\gsm_decode.c
............\...........\...\gsm_destroy.c
............\...........\...\gsm_encode.c
............\...........\...\gsm_explode.c
............\...........\...\gsm_implode.c
............\...........\...\gsm_option.c
............\...........\...\gsm_print.c
............\...........\...\long_term.c
............\...........\...\lpc.c
............\...........\...\preprocess.c
............\...........\...\rpe.c
............\...........\...\short_term.c
............\...........\...\table.c
............\...........\...\toast.c
............\...........\...\toast_alaw.c
............\...........\...\toast_audio.c
............\...........\...\toast_lin.c
............\...........\...\toast_ulaw.c
............\...........\tls
............\...........\...\bitter.c
............\...........\...\bitter.dta
............\...........\...\sweet.c
............\...........\...\taste.c
............\...........\...\taste.h
............\...........\tst
............\...........\...\cod2lin.c
............\...........\...\cod2txt.c
............\...........\...\gsm2cod.c
............\...........\...\lin2cod.c
............\...........\...\lin2txt.c
............\...........\...\run