freetdm: GSM read and write initialization

f891fefc · Gideon Sadan · Moises Silva · 9cb67dd0 · f891fefc
--- a/libs/freetdm/src/ftmod/ftmod_gsm/ftmod_gsm.c
+++ b/libs/freetdm/src/ftmod/ftmod_gsm/ftmod_gsm.c