AT Commands Modem Terminated 193
AT+CHSU HSCSD Automatic User-initiated Upgrade
5.12.2 Intermediate result codes
+CHSR HSCSD Parameters Report Result Code
5.13.1 Locked PDP contexts
In Ericsson phones every PDP context has a one-to-one relationship with an Internet Account (for more
information please refer to the AT*ENAD command in ensemble S20). If a certain Internet account is locked,
the corresponding PDP context will also be locked for editing. As a consequence, an attempt to select PDP
context parameters with
• AT+CGDCONT
• AT+CGQREQ or
• AT+CGQMIN
may fail even though the cid of the context is within the range reported with the test command.
To find out which contexts that are locked, use the AT*ENAD read command.
The read and test commands in this ensemble are not affected by these restrictions.
Description: Enables or disables the HSCSD automatic user-initiated upgrade.
Set command: AT+CHSU=[<mode>]
Read command: AT+CHSU? Displays the current <mode> setting.
Test command: AT+CHSU=? Shows if the command is supported.
Test command
response:
+CHSU: (list of supported <mode>s)
Parameter:
<mode>:
<mode> Description
0 Disable use of UP bit for upgrading
1 Enable use of UP bit for upgrading
Default setting
Description: When enabled by using the AT+CHSR command, this intermediate result code is
transmitted at the point of call setup negotiation where the ME/TA has determined
what type of HSCSD connection will be used.
Intermediate result
code:
AT+CHSR: <rx>, <tx>,<auir>,<coding>
Parameters: See AT+CHSC.
5.13 Ensemble S15: GSM GPRS
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