t +61 3 9239 2000
f +61 3 9561 2614
e
.intercel.com.au
Toll free number for
Wavecom Instruments Pty Ltd
257 Grange Road
Findon, South Australia 5023
Phone
: (+61) 08 8243 3500
Fax
: (+61) 08 8243 3501
:
Website
: www.wavecom.com.au
ABN
60 065 609 225
a. The modem does not respond to AT command
-
Check power supply : The input voltage must be from 5Vdc to 30Vdc. The supply current
must be capable of 1.7A @ 5Vdc
-
Check the serial data cable : Make sure the serial data cable is configured correctly
according to the diagram on section 6.c above
-
Check that the terminal program on your PC is configured correctly : communication port,
data speed, data format, flow control.
-
Check that there is no conflict on the selected serial communication port.
b.
The modem always returns “ERROR” to AT commands
Issue AT+CMEE=1 to modem and check the returned error code. The following table indicates
some common errors :
Error code
Error meaning
Hint
0
Modem failure
Call technical support
3
Operation not allowed
4
Operation not supported
10
SIM not inserted
Check SIM card, clean contacts
11
SIM PIN required
Enter SIM PIN
12
SIM PUK required
Call the network operator
13
SIM failure
Check the SIM validity
16
Incorrect password
17
SIM PIN2 required
18
SIM PUK2 required
26
Dialed number exceeds 20 digits
30
No network service
See other error codes in the AT command manual
c.
The modems always returns “NO CARRIER” when making an outgoing call.
After the modems returns “NO CARRIER”, issue AT+CEER to check the error code.
Error code
Error meaning
Hint
1
Unallocated phone number
16
Normal call clearing
17
Called party busy
18
No response from the called party
19
Called party alerting, no answer
21
Call rejected
22
Number changed
31
Normal, unspecified
50
Requested facility not subscribed
Check with the network
68
ACM
≥
Max ACM
No credit on prepaid SIM
252
Call barring on outgoing calls
253
Call barring on incoming calls
See other error codes in the AT command manual.
