Android does a great job of blocking spam callers. However, my phone provider sends me messages when I miss calls, so while I don't receive the spam calls themselves I always receive these follow-up sms in my inbox;
Note that while this SMS is sent by my phone provider (Telstra) the number appears as the number of the caller (in this case 02 9133 5694), not the number of my phone provider.
I don't want to disable these SMS as they're genuinely useful to receive when I miss calls from people I actually know. Also, clearly Android knows that this message is related to a spam caller, since it has flagged the message, so how can I get Android to just block these messages?