Modem Status, Customization, and Reset Commands
Rev 2.8.1 Feb.11 31
+CLVL=<level>
+CLVL=?
+CLVL?
Supporting modems:
• All
Sets / returns internal loudspeaker volume
This command is used to set or report the modem’s internal loudspeaker
volume.
Usage:
• AT+CLVL=<level> sets the volume within a specified range
• AT+CLVL=? reports allowed values for <level>
• AT+CLVL? reports the current volume
Parameters:
<level> (Sound level):
• Manufacturer-specific volume levels
• Valid range: 0(lowest)–7(highest)
+CMUT=<enableFlag>
+CMUT=?
Supporting modems:
• All voice-enabled modems
Enables / disables uplink voice muting
This command is used to enable or disable uplink voice muting during a voice
call.
Usage:
• AT+CMUT=<enableFlag> turns muting on or off
• AT+CMUT=? returns valid <enableFlag> values
Parameters:
<enableFlag> (Enable / disable muting):
• 0 = Mute off
• 1 = Mute on
*CNTI=<n>
Supporting modems:
• All, with following excep-
tions:
· AC875 / 875U (min.
FW: H1_1_4_1)
Returns current, available, and supported network
technologies
This command is used to report the network technology currently being used,
the technologies available for use, or the technologies supported by the
modem.
Usage:
• AT*CNTI=<n> returns
*CNTI: <n>,<tech>[,<tech>[...]]
Parameters:
<n> (reporting option):
• 0 = Network technology currently in use
• 1 = Available technologies on current network
• 2 = All technologies supported by the modem
<tech> (technology type):
• ASCII string
• Valid values: “GSM”, “GPRS”, “EDGE”, “UMTS”, “HSDPA”, “HSUPA”
(only when <n> = 1)
Table 3-2: Modem status, customization, and reset commands (Continued)
Command Description
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