Huawei F688 - Page 4

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13 Signal indicator
 Off: indicates that there is no signal or that the
base is searching for a network or being
initialized.
 Steady white: indicates that the signal is strong.
 Blinking slowly in white: indicates a Subscriber
Identity Module (SIM) card-related fault, such
as no SIM card inserted, personal identification
number (PIN) or PIN unblocking key (PUK)
unverified, or SIM card unable to work
properly.
14 Battery indicator  Off: indicates that the battery is not installed in
the base or that the battery has sufficient
power without the power adapter.
 Steady red: indicates that the battery is being
charged.
 Blinking slowly in red: indicates that the battery
power is insufficient and that you need to
charge the battery.
 Steady green: indicates that the battery has
been fully charged when connecting the power
adapter.
15 Power indicator  Off: indicates that the base is powered off.
 Steady white: indicates that the base is
powered on.
 Blinking slowly in white: indicates that the base
is in paging state.
 Blinking fast in white: indicates that the base is
registering a handset.