AT Commands Phone Terminal Terminated
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4.13.1 Commands
AT+CHSD
HSCSD Device Parameters
<name>:
<name>
Description
0
Asynchronous connection (UDI or 3.1 kHz modem)
Default setting
<ce>:
<ce>
Description
1
Non-transparent
Default setting
4.13 Ensemble S5: GSM HSCSD
Description:
Shows HSCSD features supported by the ME/TA.
Execution command:
AT+CHSD
Execution command
response:
+CHSD: <mclass>,<maxRx>,<maxTx>,<sum>,<codings>
Test command:
AT+CHSD=?
Shows if the command is supported.
Parameters:
<mclass>:
<mclass>
Description
2
Multi slot class is ‘2’
Default setting
<maxRx>:
<maxRx>
Description
2
Maximum number of receive time slots that the ME can use
Default setting
<maxTx>:
<maxTx>
Description
1
Maximum number of time slots that the ME can use
Default setting
<sum>:
<sum>
Description
3
Total number of send and receive time slots that the ME can
use
The following applies in an HSCSD call:
(receive slots)+(transmit slots) may not equal less than 2,
and not more that <sum>