Receiving 'No Carrier' Messages; This Document Is The Sole And Exclusive Property Of Wavecom. Not To Be Distributed Or Divulged Without Prior Written; Agreement - Wavecom Integra M2106+ Product Specification

7.2

Receiving 'no carrier' Messages

®
If the Wireless CPU returns a ' no carrier ' message on an attempted transmission of data or voice signals,
refer to the next table for possible causes and solutions.
If the Wireless CPU
returns
No carrier
No carrier
(when trying to issue a
voice communication)
No carrier
(when trying to issue a
data or fax
communication)
If the Integra Wireless CPU
the extended error code by using the AT+CEER command. Refer to the following table for interpretation of
the extended error code .
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This document is the sole and exclusive property of Wavecom. Not to be distributed or divulged without prior written

agreement.

WA_DEV_M2106+_PTS_003-001
Table 6: Solutions for no carrier message
®
Then ask
Is the received signal strong
enough?
Is the antenna in accordance
with requirements and correctly
connected?
Is the semicolon (;) entered
immediately after the phone
number in the ATD command?
Is the SIM card configured for
data/fax calls?
Is the selected bearer type
supported by the called party
and by the network?
®
returns a 'no carrier' message, and there is no solution in Table 6, investigate
Erreur ! Style non défini.
Corrective Action
Refer to section 6.5.3.2 to check the
strength of the received signal.
Refer to Table 4 for antenna
requirements and antenna connection
check.
Make a new attempt with the
semicolon at the end of the AT
command:
e.g. ATD 1234;
Contact your network provider for
activation of Data Fax services.
Check bearer type with the called
party and the network provider.
Try bearer selection by AT command:
AT+CBST=0,0,3
Integra M2106+
Page: 69 / 77
April, 2007