In UDP the raw data is followed by an "OK" in TCP it is not. I've just updated from AT v20 and in that version both TCP & UDP issued an OK after the raw data. There was some discussion here viewtopic.php?f=16&t=221 about the removal of the (unneccessary) ok on TCP, but it appears to have been overlooked on UDP. It would be best for them to be both the same.
An example follows:
AT version:0.23.0.0(Apr 24 2015 21:11:01)
compile time:Apr 24 2015 21:19:31
OK <<<<<<<<<<<<<< Extra LF OK LF on UDP packet containing "incoming"
+IPD,0,8:incoming0,CLOSED <<<<<<<<<<<<<< Nothing extra on TCP
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