Filter
Top Products
123
LZT 123 7361 R1B
7. Data - HSCSD
7.1 AT+CHSC HSCSD Current Call Parameters
Returns information about the current HSCSD call parameters, i.e. the
current number of receive and transmit timeslots, air interface user rate
and channel coding.
Description Command Possible Responses
Show current HSCSD
call parameters
AT+ CH SC • +CHSC:<rx>,<tx>,<aiur>,<coding>
• +CME ERROR: <err>
•OK
• ERROR
Test if command is
supported
AT+ CH SC =? • +CME ERROR: <err>
•OK
• ERROR
<rx> Description
0 No HSCSD call is active. See also note below
1 The number of receive timeslots currently in use is 1
2 The number of receive timeslots currently in use is 2
<tx> Description
0 No HSCSD call is active. See also note below
1 The number of transmit timeslots currently in use is 1
<aiur> Description
0 No HSCSD call is active. See also note below.
1 Current air interface user rate is 9.6kbits/s
3 Current air interface user rate is 19.2kbits/s
<coding> Description
0 No HSCSD call is active. See also note
4 Current channel coding is 9.6kbits/s (TCH/F9.6)
8 Current channel coding is 14.4kbits/s (TCH/F14.4)