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Owner’s Manual Rev 1.0 Page 132 of 132
Set HSCSD parameters
reporting on or off
AT+CHSR=[<mode>]
•_ +CME ERROR: <err>
•_ OK
•_ ERROR
Show current setting AT+CHSR?
•_ +CHSR: <mode>
•_ +CME ERROR: <err>
•_ OK
•_ ERROR
Test if command is
supported and show
parameter range
AT+CHSR=?
•_ +CHSR: (list of
supported
<modes>s)
•_ +CME ERROR: <err>
•_ OK
•_ ERROR
With this command enabled, the intermediate result code +CHSR:
<rx>,<tx>,<aiur>,<coding> is returned (from TA to TE) when an HSCSD
call is being set up. The result code represents the current (negotiated or
renegotiated) HSCSD parameters. If enabled, the intermediate result code is
transmitted at the point of the call setup negotiation, where the ME/TA has
determined what type of HSCSD connection will be used. Result code
transmission is done after possible service (CR), error control (+ER), and/or
compression (+DR) reporting, but before possible TE-TA rate (+ILRR)
reporting and before the intermediate result code CONNECT is transmitted.
The format of the intermediate result code is:
+CHSR: <rx>,<tx>,<aiur>,<coding>
For the value definitions, refer to AT+CHSC HSCSD Current Call
Parameters
For instance, for a non-transparent HSCSD call, result code ‘CHSR: 2, 1, 4, 8’
means that the call has two timeslots downlink, one timeslot uplink, the air
interface user rate is 28.8 kbits/s and the used channel coding is
TCH/F14.4.
<mode> Description
0 Disable reporting
1 Enable reporting
Itermediate Result Codes:
+CHSR: <rx>,<tx>,<aiur>,<coding>