NOVATEL WIRELESS, INC. T2000 User Manual
Rev.: R1.0
4
3.3 Screen On/Off Behavior
T1 = 30 seconds
T2 = 5 seconds
Screen On/Off Behavior
Power
State
Screen On/Off
Notes
AC/Battery
Startup
On, Timeout (T1)
If user does nothing, transition to Idle state.
AC/Battery
Idle
Off
AC/Battery
Incoming call
On, Timeout (T1)
Answered => Call in progress
Ignored => Timeout from last ring.
AC/Battery
Off hook
Dialing
On, Timeout (T1)
Timeout restarts with each tone/keypress,
so applies if user leaves phone off hook.
Keypress
AC/Battery
Call in progress
On
Incoming or outgoing call
Includes call waiting, conferencing
AC/Battery
Hang up
Timeout (T1)
Timeout starts from hang up.
AC/Battery
Viewing Sub-
screens
On, Timeout (T1)
Timeout starts from each HW button press.
After timeout, turn screen off. When user
pushes the button again, Home screen is
displayed.
AC/Battery
Missed call state
Timeout from last ring (incoming call event)
No special behavior for missed call ongoing
state.
AC/Battery
Call Forwarding
No special behavior
AC/Battery
SW Update
download in
progress
No special behavior
AC/Battery
SW Update ready
to install
No special behavior
AC/Battery
SW Update in
progress
(installation)
On
After install, restart.
Normal T1 timeout.
AC/Battery
SW Update
complete message
Off
Do not go back to Home screen – keep SW
message until user presses button.
Low Battery
Startup
On, Timeout (T2)
If user does nothing, transition to Idle state
Low Battery
Idle
Off
Low Battery
Incoming call
On, Timeout (T2)
Timeout starts when user answers OR last
ring.
NOTE:
Screen will not show caller information.
Low Battery
Off hook
Dialing
On, Timeout (T2)
Timeout restarts with each tone/keypress.
NOTE:
Screen will not show number dialed.
Low Battery
Call in progress
Off
Timeout from last ring (incoming call) or dial
action (outgoing call).
Low Battery
Call in progress,
incoming call (call
waiting)
On, Timeout (T2)
As for normal incoming call.
Low Battery
Call in progress,
outgoing call
(conferencing)
On, Timeout (T2)
As for normal outgoing call.
Low Battery
Hang up
On, Timeout (T2)
Timeout starts from hang up.
(If screen is already ON and time running,
restart time upon hang up)
