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6 Troubleshooting failed transmission
This section of the document describes possible problems encountered when using the Fastrack
modem and their solutions. To review other troubleshooting information, refer the 'FAQs' (Frequently
Asked Questions) page at
http://www.wavecom.com/support/faqs.php
6.1
Receiving "no carrier" message
If the modem returns a message of no carrier upon an attempted transmission of data, or voice
signals, then refer to following table for possible causes and solutions.
If the modem returns ...
no carrier
Refer to the AT commands manual for all codes and details.
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.
www.wavecom.com
or use the following link:
Table 14: Solutions for "no carrier" message
Then ask ...
Is the selected bearer type is
supported by the called party?
Is the selected bearer type is
supported by the network?
Is the received signal strong
enough?
Is
the
antenna
connected?
WM_MKT_Fastrack_UGD_001 - 002
Action ...
Type AT+CEER to view the extended
error code (Refer to Table 15)
Ensure that the selected bearer type
is supported by the called party
Ensure that the selected bearer type
is supported by the network
ensure that the semicolon (;) is typed
immediately after the phone number
In the AT command
e.g. ATD######;
type AT+CBST=0,0,3
Configure the SIM card for data/fax
calls
Refer to § 4 to verify the strength of
the received signal
properly
Refer
to
requirements
September 2002
Table
12
for
antenna
Page : 19 / 29
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