User manual

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Possible reasons:=
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• The receiver is not a modem.
• The receiver does not support the selected parameters (“no carrier”).
• The receiver is busy.
• The GSM Modem is not booked in the GSM network.=
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Wrong screen indication=
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• Unintended double characters are shown: switch off echo-mode by ATE0.
• Incorrect messages that are received from the modem: The format of the
data settings has to be checked. They have to be equal for both the trans-
mitting and receiving modem.=
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GSM Modem does not dial=
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• Cable is disconnected - connect the cable
• Dialling inhibition is activated - switch off and on the modem=
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GSM Modem cannot receive a fax=
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• The data-bits of transmitter and receiver are not equal: Adjust them by
AT+FOPT=1,0 or AT+FOPT=1,1.
In case of problems please consult our homepage or send
an e-mail to: [e-mail]
Please give informations regarding the following issues:
• Where and when buyed?
• Which problem do you have?
• What was done before?
• Which application do you use the modem for?