Sierra Wireless AirLink FXT Series, Руководство пользователя, Страница: 86 / 136

WA_DEV_FEX20_UGD_002 Rev 002 April 26, 2010 86
Fastrack Xtend User Guide Troubleshooting the Fastrack Xtend
If the Fastrack Xtend
returns
Then ask Action
Is the band selection correct? Refer to Switching Bands for more
information about switching
between bands.
"NO CARRIER" (when trying
to issue a voice
communication) Is the semicolon (;) entered immediately
after the phone number in the AT
command? Ensure that the semicolon (;) is
entered immediately after the
phone number in the AT command.
e.g. ATD######
;
"NO CARRIER" (when trying
to issue a data
communication)
Is the SIM card configured for data/fax
calls? Configure the SIM card for data/fax
calls. (Ask your network provider if
necessary).
Is the selected bearer type supported by
the called party? Ensure that the selected bearer
type is supported by the called
party.
Is the selected bearer type supported by
the network? Ensure that the selected bearer
type is supported by the network.
If still unsuccessful, try selecting the
bearer type using the AT command:
AT+CBST=0,0,3
If the Fastrack Xtend returns a “NO CARRIER” message, you may retrieve the extended error code
by using the AT Command
AT+CEER . Refer to the following table for the interpretation of extended
error codes.
Table 60: Extended Error Codes
Error Code Diagnosis 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
50 Requested facility not subscribed Check your subscription. (Is data
subscription available?)
68 ACM equal or greater than ACMmax The credit of your pre-paid SIM card has
expired.
252 Call barring on outgoing calls
253 Call barring on incoming calls
3, 6, 8, 29, 34, 38, 41, 42,
43, 44, 47, 49, 57, 58, 63,
65, 69, 70, 79, 254 Network causes
Refer to document [7] Firmware 7.4a AT
Commands Manual (Sierra Wireless
Software Suite 2.31)/Firmware 7.4 AT
Commands Manual (Sierra Wireless
Software Suite 2.30) for further details or call
your network provider.
For all other codes and/or details, refer to the documents listed in section 19.2 Firmware
Documentation
.