AT Commands Phone Terminal Terminated
44
AT+CHSC
HSCSD Current Call Parameters
<topRx>:
<topRx>
Description
0
The user is not going to change <wAiur> and/or <wRx>
during the next call
1
‘1’ is the top <wRx> value that the user is going to request
during the next established non-transparent HSCSD call
2
‘2’ is the top <wRx> value that the user is going to request
during the next established non-transparent HSCSD call
Default setting
<codings>:
<codings>
Description
4
Indicates that the accepted channel coding for the next
established non-transparent HSCSD call is 9600 bits/s only
8
Indicates that the accepted channel coding for the next
established non-transparent HSCSD call is 14000 bits/s
only
12
Indicates that the accepted channel coding for the next
established non-transparent HSCSD call is both 9600 bits/s
and 14000 bits/s
Default setting
Description:
Shows current HSCSD call parameter settings.
Execution command:
AT+CHSC
Execution command
response:
+CHSC: <rx>,<tx>,<aiur>,<coding>
Test command:
AT+CHSC=?
Shows if the command is supported.
Parameters:
<rx>:
<rx>
Description
0
No HSCSD call is active; see note below
1
One receive time slot is currently in use
2
Two receive time slots are currently in use
<tx>:
<tx>
Description
0
No HSCSD call is active; see note below
1
One transmit time slot is currently in use
<aiur>:
<aiur>
Description
0
No HSCSD call is active; see note below
1
Current air-interface user rate is 9600 bits/s