Regarding SMS, a few basic comments on how it works ... First, there is a message service center address, that is the link to the provider and is set with the +CSCA command. The device (phone) can be set to allow originations (send), terminations (receive) and broadcast type messages, set with the +CMCS (select message service).
There is an alert called new message indicator, the behavior of which is set with +CNMI (New Message Indications). There is command to list messages +CMGL. And yes there is command to receive message +CMGR. The billing of messaging is entirely carrier dependent. There is no generic rule that can apply to everyone. Some carriers for example may not charge for incoming messages while others will. As far as I know there is no way to block specific origins in a way that would stop billing of messages. So the answer is it is technically possibly to only receive (+CMGR) messages in your address book, that could be effective in blocking spam messages, but afaik that has no impact on billing. How it is billed depends on your carrier, and which plan or messaging feature you have. Doug Sutherland Proficio Research http://www.proficio.ca/ _______________________________________________ OpenMoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
