@@ -416,9 +416,9 @@
 ! Turn on CTS handshaking.
 HSReset 0 1 0 0 0 0
 !
-ifANSWER 71
-pause 30
-@LABEL 71
+!ifANSWER 71 -- There is no reason for this three second pause.
+!pause 30    -- It is (literally) a waste of time
+!@LABEL 71
 exit 0
 !
 !
@@ -446,8 +446,20 @@
 !  Escape from data to command mode
 matchclr
 matchstr 1 96 "OK\13\10"
+! As per Hayes AT command specifications, there must be at least a
+! one second pause before and after the +++ sequence for it to be
+! recognised as a valid attention sequence (otherwise an accidental
+! run of three plus signs in normal data could make the modem hang up).
+! Hence we have an explicit 1.2 second pause before sending '+++'.
+! There is no need for an explicit pause after the '+++', because we
+! simply go into the matchread call and wait (without sending any more
+! characters) until the modem generates an "OK" response.
+note "Disconnecting..." 3
+pause 12
 write "+++"
 matchread 20
+! If we get to here, it is because the modem did not respond to our '+++'.
+! We'll still try the ATH command, because it might work anyway.
 !
 @LABEL 94
 ! Force a hangup
@@ -459,26 +471,28 @@
 write "ATH\13"
 matchread 30
 !
+! Try the hangup sequence three times otherwise declare and error
+inctries
+iftries 3 101
+!
 ! Try to get control of the modem by toggling DTR
 DTRClear
 pause 5
 DTRSet
 flush
-!
-! Try the hangup sequence three times otherwise declare and error
-inctries
-iftries 3 101
+note "Disconnect failed. Trying again..." 3
 jump 92
 !
 @LABEL 96
 ! Pause between data and command mode
-pause 50
+!pause 50 -- There is no reason for this five second pause. It is (literally) a waste of time
 jump 94
 !
 !
 @LABEL 98
 ! Recall the factory settings
-pause 15
+!pause 15 -- The radio is already in command mode. It is ready and waiting forthe
+! next command. This pause is superfluous and (literally) just a waste of time.
 matchclr
 matchstr 1 99 "OK\13\10"
 write "AT&F\13"