<codings> Description

4Indicates that the accepted channel coding for the next established non-transparent HSCSD call is 9.6 kbits/s only

7.3 AT+CHSN HSCSD Non Transparent Call Configuration

Description

Command

Possible Responses

Set HSCSD configuration. This command is also used during a call if new <wAiur> and/or <wRx> are/is desired

Show current nontransparent HSCSD setting

Test if command is supported and show parameter ranges

AT+CHSN=[<wAiur>[,<wRx>[,<topRx> •_ +CME ERROR: <err>

[,<codings>]]]] •_ OK

•_ ERROR

AT+CHSN?

•_ +CHSN: <wAiur>,

 

<wRx>, <topRx>,

 

<codings>

 

•_ +CME ERROR: <err>

 

•_ OK

 

•_ ERROR

 

 

AT+CHSN=?

•_ +CHSN: (list of

 

 

supported <wAiur>s),

 

(list of supported

 

<wRx>s), (list of

 

supported <topRx>s),

 

(list of supported

 

<codings>s)

 

•_ +CME ERROR: <err>

 

•_ OK

 

•_ ERROR

Controls parameters for non-transparent HSCSD calls. Changing <topRx> or <codings> during a call does not affect the current call. Changing <wAiur> or <wRx> affects the current call only if <topRx> 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 <speed> in AT+CBST is 0.

<wAiur> Description

Owner’s Manual

Rev 1.0

Page 130 of 130