SignalQuality() is the result of the same-named function in PhoneLib.

GetPhoneCallStatus() is a bitmap which shows what type of calls are 
active.  It can be a mixture of these bits:
0x00000001 voice line1
0x00000002 voice line2
0x00000004 data
0x00000008 GPRS/CDMA(grey)
0x00000010 CDMA(green)

'Enable phone on reset' causes the phone to be turned on whenever the 
device is reset.  It also uses your on/off schedule to determine if 
it's appropriate.

Day/Week times can be specified.  N/A means to not perform an action, 
for example, N/A as an off-time means to not turn it off.  It keeps 
the Day & Week times separate, so an easy way to disable your schedule 
is to move over to the Day setting, and set them both to N/A.

'Stay on (lid close) if net active' is convenient if you are using a 
wireless application and you want to close the lid without dropping 
the connection.  It tests the 0x00000010 call status for that, which 
may be different on a GSM device.

'Auto-Off (lid close)' sets the system preference for the auto-off 
period while the lid is closed.  The default is 30 seconds.  Note: this 
is a Handspring preference, and as such it will remain set even if 
this application is uninstalled.

'Phone off if no coverage' can be used to turn off the phone when it 
loses signal for a certain period of time.  This can be a work-around 
for firmware bugs, such as the inability to regain a signal after a 
few minutes of loss.  Also it can prevent battery drain if you 
accidentally leave the phone on while in poor reception.  The network 
search mode of the phone is battery intensive.

'Max tries etc' is a setting for the above situation.  When we shut 
off the phone due to signal loss, we allow it to be automatically turned 
back on at specified intervals.  You set the interval and the maximum 
number of times it should try to turn the phone back on.

'Drop net (xxx arrows)' is an option (currently for 300 only) to allow 
for the 3G connection to 
be dropped, in two different situations.  Grey arrows are while the 
3G connection is idle, which is mostly harmless.  However, there have 
been users who suggest that even an idle 3G connection can cause battery 
drain while in a poor coverage area.  So setting the 'Drop net' for grey 
is a way to shut down the 3G connection if it's been idle.  Green arrows 
indicate that the 3G is currently active.  The 'Drop net' option for 
green arrows can be used if you suspect that the radio is 'stuck' in 
transmit mode for too long.

'Drop net (no coverage)' is interesting.  Some users have suggested 
that a turbo drain mode (on the 300) can be caused by the 3G connection 
being active during a signal loss condition.  This option is for 
testing this hypothesis.  So far I have seen some success by using this 
option, say set for 10 seconds, whereas I have seen no improvement with 
the other 'Drop net' options.

'Auto-OK Connection Progress Dlg' is the newest option.  There are times 
when logging into the wireless system will fail.  These are harmless as 
you may always try again.  However, they leave a useless dialog on the 
screen which can block other UI activities.  This option recognizes when 
a failure during login occurs, and it dismisses the dialog.  There are 
some conditions when it will not work however.  Such as if the phone 
is currently off.  A failure dialog at that point will not be dismissed. 
Hopefully this can work in the future.  It's my first attempt, sorry.\n"