WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
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Wavecom Confidential & Proprietary Information
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6.2 Receiving “ERROR” message
The modem returns an “ERROR” message (in reply to an AT command) in the
following cases:
! AT command syntax is incorrect: then check the command syntax
(refer to document [1]),
! AT command syntax is correct but transmitted with wrong
parameters:
o Enter the
AT +CMEE=1
command in order to enable the
mechanism allowing to get the Mobile Equipment error code
instead of simply “ERROR” message,
o Enter again the AT command which previously caused the
reception of “ERROR” message in order to get the Mobile
Equipment error code.
When the mechanism allowing to get the Mobile Equipment error code is
enable, the response of the modem in case of error is the following:
! Either
+CME ERROR: <error result code>,
! Or
+CMS ERROR: <error result code>.
Refer to document [1] for error result code description and further details about
the
AT +CMEE
command.
Note
: It is strongly recommended to systematically enable the mechanism
allowing to get the Mobile Equipment error code (enter
AT +CMEE=1
command).
6.3 Receiving “NO CARRIER” message
If the modem returns a ”NO CARRIER” message upon an attempted call (voice or
data), then refer to the table below for possible causes and solutions.
Table 6: Solutions for “NO CARRIER” message
If the modem
returns…
Then ask… Action…
Is the received signal strong
enough?
Refer to paragraph 5.4 to
verify the strength of the
received signal.
Is the modem registered on the
network?
Refer to paragraph 5.7 to
verify the registration.
”NO CARRIER”
Is the antenna properly
connected?
Refer to paragraph
8.2.6.3 for antenna
requirements.
”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######;
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