0: buffer in TA;
1: discard indication and reject new SMs when TE-TA link is reserved; otherwise forward directly;
<mt>: 0: no SMS-DELIVER are routed to TE;
1: +CMTI: <mem>,<index> routed to TE;
2: for all SMS_DELIVERs except class 2: +CMT: .... routed to TE; class 2 is indicated as in <mt>=1;
3: Class 3: as in <mt>=2; other classes: As in <mt>=1;
---> Interesting: Only when <mt> is different from 0, you will get a message that a new SMS has been received. Is this not the problem? Nokia sets their phones to 2.
<bm>: same as <mt>, but for CBMs;
<ds>: 0: No SMS-STATUS-REPORT are routed to TE;
1: SMS-STATUS-REPORTs are routed to TE, using +CDS: ...
<bfr>: 0: TA buffer is flushed to TE (if <mode>=1..3);
1: TA buffer is cleared (if <mode>=1..3);