User guide

WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
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Wavecom Confidential & Proprietary Information
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If the modem
returns…
Then ask… Action…
Is the SIM card configured for
data / fax calls?
Configure the SIM card
for data / fax calls (Ask
your network provider if
necessary).
”NO CARRIER”
(when trying to
issue a data
communication)
Is the selected bearer type
supported by the called party?
Is the selected bearer type
supported by the network?
Ensure that the selected
bearer type is supported
by the called party.
Ensure that the selected
bearer type is supported
by the network.
If no success, try bearer
selection type by AT
command:
AT+CBST=0,0,3
If the Fastrack modem returns a “NO CARRIER” message , you can have the
extended error code by using AT command
AT+CEER . Refer to the table below
for interpretation of extended error code.
Table 7: Interpretation of extended error code
Error Code Diagnostic Hint
1 Unallocated phone number
16 Normal call clearing
17 User busy
18 No user responding
19 User alerting, no answer
21 Call rejected
22 Number changed
31 Normal, unspecified
Not applicable.
50 Requested facility not
subscribed
Check your subscription (data
subscription available?).
68 ACM equal or greater than
ACMmax
Credit of your pre-paid SIM
card expired.
252 Call barring on outgoing calls
253 Call barring on incoming calls
Not applicable.