JETHRO SC330 Instruction Manual page 54

Outgoing calls cannot be done:
Check the phone number and try

again.
Have you activated the function call

barring? If yes please disable
Check whether the SIM card in the

network is
Check that is enough credit on your

SIM
You cannot receive incoming calls:
Check whether the SIM card in the

network is
Check if the phone is turned

Check the signal

Have you activated the function call

barring? If yes please disable
Send SMS not working
Please check the SMSC number

(communication Central) under the
following menu
"Messages - settings - SMS settings -
SIM - SMSC - address": here the
communication Central number of
your carrier should
The display is black or white:
Check the battery status, charge the

battery or replace
Check the background

registered.
card.
registered.
strength
item:
be.
it.
image.
52
all.
on.
all.