Thailand is one of the straight forward country with fully featured direct routes to all networks.

 Is Alphanumeric sender ID supported in Thailand?

• Yes.
  

 Is the DR reliable?

• Direct routes to Thailand supports handset delivery report.

 Is concatenated SMS supported in Thailand?

• Yes. Long concatenated text messages are supported by the all main telcos in Thailand: DTAC, True Move, AIS and CAT.