8
No. Item Description
3Answer / Hang-up
Button
Press to receive an incoming call.
Press to complete a conversation.
Long press for 2 seconds to send GPRS message
to the server when no incoming call or conversation.
4 SOS Button
Long press for 2 seconds, MT90 will dial 3
preauthorized phone numbers in turn. It will stop
dialing when one number answers. Meanwhile, MT90
will send an SMS to the preauthorized phone number
and send GPRS message to the server if GPRS
function is enabled.
Press to wake up if MT90 is in sleep mode.
5Microphone It will run automatically when using listen-in and call
functions.
6Speaker It will run automatically when using call function.
