RELEVANT CDR FIELDS FOR ACCOUNTING FOR TEXT MESSAGES

Have the Acme Packet 6300 SBC installed. Version SCZ7.1.2 MR-2 GA (Build 264). 
SBC is Running. Have Accounting License, but still collecting CDRs from the connected Soft Switches. 
A team is working to ensure CDR collection is from a Single Point {the SBC}. Answered some questions but need some help: 
Question now is 
1. What Fields in the CDR tell that a TEXT MESSAGE was sent? 
2. What are other relevant Fields related to Text Messaging or SMS?

 

SBC configured to Push CDR CSV Files to FTP Server.

Also Configured to Push only STOP RECORDS.

 

Thanks in advance.