User guide

WA_DEV_FEX20_UGD_002 Rev 004 March 08, 2011 87
Fastrack Xtend User Guide
Troubleshooting the Fastrack Xtend
If the Fastrack Xtend
returns
Then ask
Action
"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 71. 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.