Specifications

Chapter 7 – Call-Related Commands
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 86
7.22 AT^SLCC List Current Calls of ME
Description: AT^SLCC covers essentially the same information as AT+CLCC, with the following additions:
• The execute command response contains an additional parameter <traffic channel assigned>
indicating whether the call has been assigned a traffic channel by the network (transmission of
data or inband information is possible).
• The additional write command allows to activate Event reporting for the list of current calls. If
event reporting is active for an interface, a call status transition (see Call Status Information)
and (if desired) the assignment of a traffic channel will generate an event report indication to
this interface. In order to receive this event report as an URC, the URC presentation mode for
this interface has to be configured with AT+CMER.
The frequency of event report generation can be configured with AT command AT^SCFG.
Refer to Call Status Information for further detail on the configuration options.
Command Description:
The additional read command allows to determine the event reporting mode <n> which indicates
whether the interface receives event report indications for the list of current calls. Mind that the
URC will be displayed only if the URC presentation mode for the interface concerned has been
configured with AT+CMER.The read command returns an indication whether event reporting is
active for the current interface.
The exec command returns a list of current calls of ME. If command is successful, but no calls
are available, no information response is sent to TE.
Use the write command to activate or deactivate event reporting for URC "^SLCC". Event
reporting can be enabled separately for each interface. Interface settings are saved with AT&W
and can be displayed with AT&V.
Test Command Syntax: AT^SLCC=?
Response: ^SLCC: (list of supported<n>s)
OK
Read Command Syntax: AT^SLCC?
Response: ^SLCC: <n>
OK
Exec Command Syntax: AT^SLCC
Response: [^SLCC:<idx>, <dir>, <stat>, <mode>, <mpty>, <traffic channel assigned>[,
<number>,<type>[, <alpha>]]]
[^SLCC:<idx>, <dir>, <stat>, <mode>, <mpty>, <traffic channel assigned>[,
<number>,<type>[, <alpha>]]]
[^SLCC:...]
OK
ERROR
+CME ERROR
Write Command Syntax: AT^SLCC=[<n>]
Response: OK
ERROR
+CME ERROR: <err>
Unsolicited Result Code: Unsolicited Call Status information
if the list of current calls is empty:
^SLCC:
if one or more calls are currently in the list:
^SLCC: <idx>, <dir>, <stat>, <mode>, <mpty>, <traffic channel assigned>[,
<number>, <type>[, <alpha>]]
[^SLCC: <idx>, <dir>, <stat>, <mode>, <mpty>, <traffic channel assigned>[,
<number>, <type>[, <alpha>]]]
[... ]
^SLCC:
URC “^SLCC” displays the list of current calls as displayed with the execute command
AT^SLCC. The list is displayed in the state it has at the time of display, not in the state it
had when the signal was generated.
The URC’s occurrence indicates call status changes for any of the calls in the list of
current calls.
Please refer to Call Status Information and AT^SCFG for further information about the
configuration of this URC.
Event reporting can be enabled separately for each interface. Interface settings are saved
with AT&W and can be displayed with AT&V. Additionally, The URC presentation mode
for the interface must be configured with AT+CMER.
Depending on the value of AT^SCFG setting <sucs>, Indicator “^SLCC” will be issued (if
configured with write command AT^SLCC and AT+CMER):