At Commands Supported When Sim Card Removed; At Commands For Amps Operation - Multitech CDMA Wireless Modem Reference Manual

AT Commands Supported When SIM Card Removed

The following lists the AT commands that are supported in a RUIM modem (the modem needs a SIM card to
operate) when the SIM card is not present.
# List
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

AT Commands for AMPS Operation

In the APMS mode, only the voice call is applicable. Although user can still issue almost all of AT
commands, the most of the AT commands are not applicable for AMPS operation, e.g. data commands,
SMS, FAX, RUIM commands, service programming etc.
The following table list the AT commands that are meaningful for AMPS operation. Please note that these
listed AT commands are also applicable in CDMA operations.
# List
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C
AT Command
+IPR
+CMEE
+CCLK
+CBC
+WIND
ATE
+CPOF
+CFUN
+WGMI
+WGMM
+CGMR
+CGSN
+CSCS
+CPAS
+CRMP
+CRSL
+CSQ
+CREG
$QCDMG
ATIx
AT command Note and Explanation
+COPS +COPS=2,n (n=0,1)
ATD Making a voice call
ATA Answer a voice call
ATDL Redial last #
+VGR Change the receiving voice volume
+VGT Change the transmitting voice volume
+CMUT Mute the microphone
A/ Repeat last command
ATS0 Set auto answer
ATH Hang up a voice call
ATIx Request Modem Information (x = 0-7)
+IPR Set modem baud rate
+CNUM Display modem directory #
+CGSN Display modem ESN # (in hex format)
+CMEE Display the error code
+WPRL Read the PRL version
+CPOF Modem OFF mode
+CFUN Reset the modem
Chapter 20 – Reference Information
Note and Explanation
Set modem fixed baud rate
Display the error code
Clock management
Battery charge
General status indication
Set modem local echo
Modem Offline mode
Reset the modem
Manufacturer identification
Model identification
Revision identification
Electronic serial dumber
TE character set selection
Phone activity status
Ring melody playback
Ringer sound level
Signal quality
Network registration and roaming
Transition to diagnostics monitor
Request Modem Information (x = 0-7)
170