(7:7:48:286) Snd COM12 [AT+CGMR<CR>]
(7:7:48:286) Rcv COM12 [<CR><LF>SWI9X07H_00.08.07.00 0ce4c1 jenkins 2021/03/17 02:18:20<CR><LF>] 
(7:7:48:286) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 15<4000 ms 
(7:7:48:770) Snd COM12 [ATI8<CR>]
(7:7:48:770) Rcv COM12 [<CR><LF>Legato Ver: 20.03.0.m1.ThreadX.rc41<CR><LF>] 
(7:7:48:770) Rcv COM12 [Yocto Ver: unknown<CR><LF>OS Ver: 20.03.0.m1.ThreadX.rc41 0ce4c1 jenkins 2021/03/17 02:18:44<CR><LF>] 
(7:7:48:786) Rcv COM12 [LK Ver: unknown<CR><LF>RootFS Ver: unknown<CR><LF>] 
(7:7:48:786) Rcv COM12 [UserFS Ver: unknown<CR><LF>MCU Ver: unknown<CR><LF>] 
(7:7:48:801) Rcv COM12 [TAOP Ver: TZ.BF.4.0.C6-00126<CR><LF><CR><LF>] 
(7:7:48:801) Rcv COM12 [OK<CR><LF>]  @ 31<4000 ms
(7:7:59:192) Snd COM12 [AT!GSTATUS?<CR>]
(7:7:59:192) Rcv COM12 [<CR><LF>!GSTATUS: <CR><LF>] 
(7:7:59:207) Rcv COM12 [Current Time:  1271<TAB><TAB>Temperature: 28<CR><LF>Modem Mitigate Level: 0<TAB><TAB>ModemProc Mitigate Level: 0<TAB><CR><LF>] 
(7:7:59:207) Rcv COM12 [Reset Counter: 9<TAB><TAB>Mode:        ONLINE         <CR><LF>System mode:   GSM        <TAB>PS state:    Attached     <CR><LF>] 
(7:7:59:223) Rcv COM12 [IMS reg state: NOT REGISTERED  <TAB>IMS mode:    Normal       <CR><LF>IMS Srv State: NO SMS,NO VoIP          <CR><LF>] 
(7:7:59:223) Rcv COM12 [GSM band:      GSM900     <CR><LF>GSM channel:   90<CR><LF>] 
(7:7:59:223) Rcv COM12 [GMM (PS) state:REGISTERED     <TAB>NORMAL SERVICE <CR><LF>MM (CS) state: IDLE           <TAB>NORMAL SERVICE <CR><LF>] 
(7:7:59:223) Rcv COM12 [<CR><LF>Serving cell:  709 (DCS1800    )<CR><LF>] 
(7:7:59:238) Rcv COM12 [RX level (dBm):-50.6250 <TAB>LAC:         4E9B (20123)<CR><LF>GPRS state:    GPRS STANDBY   <TAB>Cell ID:     9451 (37969)<CR><LF>] 
(7:7:59:238) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 46<5000 ms 
(7:15:00:035) Snd COM12 [AT+CNMI=1,1<CR>]
(7:15:00:035) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 0<4000 ms 

Choose prefer message storage:SM 
(7:15:00:254) Snd COM12 [AT+CPMS="SM","SM","SM"<CR><LF>]
(7:15:00:254) Rcv COM12 [<CR><LF>+CPMS: 0,40,0,40,0,40<CR><LF>]  @ 0<4000 ms 
(7:15:00:254) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 0<40000 ms 

Delete all storage in SM.
(7:15:00:488) Snd COM12 [AT+CMGD=1,4<CR>]
(7:15:00:488) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 0<4000 ms 

Test Step 1: Set SMS format in TEXT mode(CMGF command)
(7:15:00:723) Snd COM12 [AT+CMGF=1<CR>]
(7:15:00:723) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 0<4000 ms 

Test Step 2: Sending SMS to itself ,<da> doesn't has international prefix(CMGS command)
(7:15:00:957) Snd COM12 [AT+CMGS="090773284"<CR>]
(7:15:00:957) Rcv COM12 [<CR><LF>> ]  @ 0<4000 ms 
(7:15:01:176) Snd COM12 [Hello<SUB>]
(7:15:01:176) Rcv COM12 [<CR><LF>]  @ 0<4000 ms 
(7:15:04:566) Rcv COM12 [<CR><LF>+CMGS: 66<CR><LF>]  @ 3390<4000 ms 
(7:15:04:566) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 0<4000 ms 
(7:15:05:254) Rcv COM12 [<CR><LF>+CMTI: "SM",0<CR><LF>]  @ 688<90000 ms 

Test Step 3: Read SMS received
(7:15:05:473) Snd COM12 [AT+CMGR=0<CR>]
(7:15:05:473) Rcv COM12 [<CR><LF>+CMGR: "REC UNREAD","+8490773284",,"21/7/30,7:14:16+28"]  @ 0<4000 ms 
(7:15:05:488) Rcv COM12 [<CR><LF>Hello<CR><LF>]  @ 0<4000 ms 
(7:15:05:488) Rcv COM12 [<CR><LF>OK<CR><LF>]  @ 0<4000 ms