Sony Ericsson GM47 - Manual (Page 173)

7. DATA - HSCSD
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LZT 123 7263 R1C
7.3 AT+CHSN HSCSD Non Transparent Call Configuration
Controls parameters for non-transparent HSCSD calls. Changing
or during a call does not affect the current call.
Changing or affects the current call only if
was non-zero when the call was established. When using the command
in this way it comes in the “action” command category. This is what is
referred to as user initiated up- and down-grading in GSM 02.34 and
GSM 03.34.
Note! Recommended value for parameter in AT+CBST is 0.
Description Command Possible Responses
Set HSCSD
configuration. This
command is also used
during a call if new
and/or
are/is desired
AT+CHSN=[
[,[,
[,]]]]
• +CME ERROR:
• OK
• ERROR
Show the current
setting
AT+CHSN? • +CHSN: ,
, ,
• +CME ERROR:
• OK
• ERROR
Show if the command
is supported
AT+CHSN=? • +CHSN: (list of
supported s),
(list of supported
s), (list of
supported s),
(list of supported
s)
• +CME ERROR:
• OK
• ERROR
Description
0 TA/ME shall calculate a proper number of receive
timeslots from currently selected fixed network user rate
( parameter from +CBST command, and
, and (or from +CHSD
command if =0)
1 Wanted air interface user rate is 9.6kbit/s
2 Wanted air interface user rate is 14.4kbit/s
3 Wanted air interface user rate is 19.2kbit/s
4 Wanted air interface user rate is 28.8kbit/s