Openmoko Bug #2038: Qtopia USSD requests support

Openmoko Public Trac bugs at
Thu Oct 9 07:35:01 CEST 2008

#2038: Qtopia USSD requests support
    Reporter:  Treviño      |        Owner:  tick        
        Type:  enhancement  |       Status:  assigned    
    Priority:  normal       |    Milestone:              
   Component:  Qtopia       |      Version:  Om2008.9-dev
    Severity:  normal       |   Resolution:              
    Keywords:  HasPatch     |    Blockedby:              
Reproducible:  always       |     Blocking:              

Comment(by zecke):

   - Issueing a charset change is dangerous as it can creates a window
 where saving something on the phonebook might fail as a command gets
 inserted in between. Even while the window is very small and unlikely to
 be hit I have fixed many of this kind of issues in the Qtopia code
 already. I try to avoid it.

   - Doing it from the vendor plugin fits best with the current structure
 of the code. It also solves the issue of a default charset nicely. It is
 set by the plugin, it is handled by the plugin.

   - From reading the specs we are not sure if setting AT+CSCS should have
 a influence on the USSD encoding. The spec says default is GSM 7 Bit and
 later something else. So we have no idea how other modems handle it, this
 is another reason to put it into the fic code path.

   - Because of #2029 I'm not really sure that 15 means. We will have to
 figure out. There is no USSD service in taipei so I have to do the
 checking and adjusting when I'm back in germany. Feel free to test
 earlier. We pushed the changes as I believe the structure is the right
 one. :)

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