Hi Tony For 1. Target application is down/unreachable or not responding, the error would be. ESME UNREACHABLE or USDC:NO REPLY from ESME Kindly note that the USSD string is correctly configured both on USSD and HLR and the error is intermittent ( 40 % cases) On Thu, Sep 11, 2014 at 3:37 PM, Tony Likhanga via skunkworks < skunkworks@lists.my.co.ke> wrote:
@Alex, my guess is that there might be some hastily configured "Call-Cost notification system" involved.
Probably, after making a call, the system triggers a USSD message to your handset while using a different encoding format from the one your handset understands - hence the message does not display on your handset. As a result, your handset is technically in an active USSD session that is later torn down after the session limit lapses.
I bet that if you can reboot your phone quick enough when experiencing this, then the USSD service will be accessible almost immediately.
Tony.
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