Specifications

Chapter 7 – Call-Related Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 107
• when any state transition (including transitions beginning or ending in state
“unknown”) occurs in the list of active calls, or when a traffic channel is
established (if AT^SCFG setting <sucs>=”verbose”).
If multiple displays of identical list configurations occur, this happens because of short
intermediate states of the list, that have already been overridden by new transitions
and states. Thus, it is guaranteed that the configuration displayed is always the
current configuration at the time of the last display.
The list of active calls displayed with this URC will always be terminated with an
empty line preceded by prefix “^SLCC: “, in order to indicate the end of the list.
Parameter:
<n> This value can be stored with AT&W and can be displayed with AT&V.
0 presentation of URC “^SLCC” disabled. Default. (This is the factory default value and can be
restored to '0' with AT&F). It is also the defaulted value if the parameter is omitted (0 will be
assumed).
1 presentation of URC “^SLCC” enabled
<idx>
This number can be used in AT+CHLD command operations. Call identification number is
described in GSM02.30 subclause 4.5.5.1.
<dir>
0 mobile originated call (MOC)
1 mobile terminated call (MTC)
<stat>
state of the call
0 active
1 held
2 dialing (MOC)
3 alerting (MOC)
4 incoming (MTC)
5 waiting (MTC)
<mode>
bearer/teleservice
0 voice
1 data
3 voice followed by data, voice mode (only in connection with single numbering scheme AT+CSNS)
4 alternating voice/data, voice mode (only in connection with single numbering scheme AT+CSNS)
6 voice followed by data, data mode (only in connection with single numbering scheme AT+CSNS)
7 alternating voice/data, data mode (only in connection with single numbering scheme AT+CSNS)
9 unknown
<mpty>
0 call is not one of multiparty (conference) call parties
1 call is one of multiparty (conference) call parties
<traffic channel assigned>
0 No traffic channel is available to the call
1 Traffic channel is assigned and the progress indicator IE has been received (call setup) or a voice
connection has an active state. The parameter indicates that the audio path is activated. DTMF tones can be
sent with AT+VTS. See also note below.
<number>
phone number in format specified by <type>
<type>
type of address octect
145 dialing string <number> includes international access code character ‘+’
128 Number is restricted
129 otherwise
<alpha>
Alphanumeric representation of <number> corresponding to the entry found in phonebook.
The maximum displayed length of <alpha> is 16 characters. If <alpha> has more than 16 characters, only the
first 15 characters will be displayed. To indicate an overflow, a special character will be used as the 16
th
character. This will be a space if the character set selected with AT+CSCS is ‘GSM’, or ‘E400’ if the character set
is ‘UCS2’.
Due to time constraints on the necessary evaluation of the phonebook, this parameter may show a default value
during early call phases (e.g., for <stat>= “dialing”, “incoming” or “alerting”), even if a phonebook entry is present
for the number concerned.