SMS history is a place where you can see the sent SMS with its server responses.  The field response stores the actual return message received from the server for sending the SMS.

Account Name – This tells the account name for this SMS

Mobile To – This is the target mobile number which the SMS actually sent

Sender – This is the sender name for the SMS

Notes – This is the notes given in the notes field while sending SMS

Sent on – This is the time which the SMS sent