I suspect that Settings App is following too keenly ForwardingFlagOnSim setting. It is set only for VoiceUnconditional. Other call forwarding options are stored only to network. If I test the same scenario but dial **21*<msisdn># instead (VoiceUnconditional.) System Settings show the situation correctly.
I suspect that Settings App is following too keenly ForwardingFlagOnSim setting. It is set only for VoiceUnconditional. Other call forwarding options are stored only to network. If I test the same scenario but dial **21*<msisdn># instead (VoiceUnconditi onal.) System Settings show the situation correctly.