User guide

Developers guidelines | AT commands
100 June 2010
<wRx>:
<wRx> Description
0 TA/ME calculates a proper number of receive time
slots from currently selected <wAiur> and
<codings>. See note below
1 Wanted number of receive time slots is 1. Default
value
2 Wanted number of receive time slots is 2
Note: The Description text above is copied from GSM 27.007 and should be
interpreted as follows:
If the <wAiur> and <wRx> are both set to “0”, the number of receive time
slots is calculated from <speed> and <codings>. Furthermore, if <speed>
is “0” (autobauding), then the number of receive time slots is mapped from
<maxRx> from AT+CHSD command.
<topRx>:
<topRx> Description
0 Indicates that the user is not going to change
<wAiur> and/or <wRx> during the next call. Default
value
1 Top value for <wRx> that user is going to request
during the next established non-transparent
HSCSD call is 1
2 Top value for <wRx> that user is going to request
during the next established non-transparent
HSCSD call is 2
<codings>: This is a sum of integers each representing a supported channel coding.
For example, value 12 (4+8) indicates that 9.6 and 14.4 kbits/s are
supported.
<codings> Description
0 Indicates that all codings are accepted.
4 Indicates that the accepted channel coding for the
next established non-transparent HSCSD call is 9.6
Kbps only
8 Indicates that the accepted channel coding for the
next established non-transparent HSCSD call is
14.4 Kbps only
12 Indicates that the accepted channel codings for the
next established non-transparent HSCSD call are
both 9.6 Kbps and 14.4 Kbps. Default value