SIM800L strange behavior

[Giuseppe]

I made a GSM combiner based on SIM800L module. With one module I have no problems. The combiner works correctly. However, using other GSM modules always sim800L the combiner does not work. I sent the ATI command in response I have the SIM800 version in my case R 14.18 which is the same both in the ok module and in the non-functioning one. Then with the At&V command I display all the values ��set in the 2 modules. Comparing the parameter list there are some differences. Can you help me understand which values ��I have to change to make the non-functioning module work? Below I put the value list

(Module sim800L not working)
 
DEFAULT PROFILE
S0: 0
S3: 13
S4: 10
S5: 8
S6: 2
S7: 60
S8: 2
S10: 15
+CRLP: 61,61,48,6
V: 1
E: 1
Q: 0
X: 4
&C: 1
&D: 1
+CLTS: 0
+CREG: 0
+CGREG: 0
+CMEE: 0
+CIURC: 1
+CFGRI: 2
+CMTE: 0
+CANT: 0,0,10
+STKPCIS: 0
+CMGF: 0
+CNMI: 2,1,0,0,0
+CSCS: "IRA"
+VTD: 1
+CALS: 1
+CHF: 0
+CAAS: 1
+CBUZZERRING: 0
+DDET: 0
+MORING: 0
+SVR: 16
+CCPD: 1
+CSNS: 0
+CSGS: 1
+CNETLIGHT: 1
+SLEDS: 64,64,64,800,3000,300
+CSDT: 0
+CSMINS: 0
+EXUNSOL: 0
+FSHEX: 0
+FSEXT: 0
+CCTURI: 0
+IPR: 0
+IFC: 0,0
+CSCLK: 0

USER PROFILE
S0: 0
S3: 13
S4: 10
S5: 8
S6: 2
S7: 60
S8: 2
S10: 15
+CRLP: 61,61,48,6
V: 1
E: 1
Q: 0
X: 4
&C: 1
&D: 1
+CLTS: 0
+CREG: 0
+CGREG: 0
+CMEE: 0
+CIURC: 1
+CFGRI: 2
+CMTE: 0
+CANT: 0,0,10
+STKPCIS: 0
+CMGF: 0
+CNMI: 2,1,0,0,0
+CSCS: "IRA"
+VTD: 1
+CALS: 1
+CHF: 0
+CAAS: 1
+CBUZZERRING: 0
+DDET: 0
+MORING: 0
+SVR: 16
+CCPD: 1
+CSNS: 0
+CSGS: 1
+CNETLIGHT: 1
+SLEDS: 64,64,64,800,3000,300
+CSDT: 0
+CSMINS: 0
+EXUNSOL: 0
+FSHEX: 0
+FSEXT:
S6: 2
S7: 60

S6: 2
S7: 60
IPR: 0
+IFC: 0,0
+CSCLK: 0

ACTIVE PROFILE
S0: 0
S3: 13
S4: 10
S5: 80,0,10
+STKPCIS0,0,10
+STKPCIS+CRLP: 61,61,48,6
V: 1
E: 1
Q: 0
X: 4
&C: 1
&D: 1
+CLTS: 0
+CREG: 0
+CGREG: 0
+CMEE: 0
+CIURC: 1
+CFGRI: 2
+CMTE: 0
+CANT: : 0
+CMGF: 0
+CNMI: 2,1,0,0,0
+CSCS: "IRA"
+VTD: 1
+CALS: 1
+CHF: 0
+CAAS: 1
+CBUZZERRING: 0
+DDET: 0
+MORING: 0
+SVR: 16
+CCPD: 1
+CSNS: 0
+CSGS: 1
+CNETLIGHT: 1
+SLEDS: 64,64,64,800,3000,300
+CSDT: 0
+CSMINS: 0
+EXUNSOL: 0
+FSHEX: 0
+FSEXT: 0
+CCTURI: 0
+IPR: 0
+IFC: 0,0
+CSCLK: 0
OK
'----------------------------------------------------------------------------------------------------------------------(Module Sim800L that works)
DEFAULT PROFILE
S0: 0
S3: 13
S4: 10
S5: 8
S6: 2
S7: 60
S8: 2
S10: 15
+CRLP: 61,61,48,6
V: 1
E: 1
Q: 0
X: 4
&C: 1
&D: 1
+CLTS: 0
+CREG: 0
+CGREG: 0
+CMEE: 0
+CIURC: 1
+CFGRI: 2
+CMTE: 0
+CANT: 0,0,10
+STKPCIS: 0
+CMGF: 0
+CNMI: 2,1,0,0,0
+CSCS: "IRA"
+VTD: 1
+CALS: 1
+CHF: 0
+CAAS: 1
+CBUZZERRING: 0
+DDET: 0
+MORING: 0
+SVR: 16
+CCPD: 1
+CSNS: 0
+CSGS: 1
+CNETLIGHT: 1
+SLEDS: 64,64,64,800,3000,300
+CSDT: 0
+CSMINS: 0
+EXUNSOL: 0
+FSHEX: 0
+FSEXT: 0
+CCTURI: 0
+IPR: 0
+IFC: 0,0
+CSCLK: 0

+CRLP: 61,61,4
+CRLP: 61,61,4S0: 0
S3: 13
S4: 10
S5: 8
S6: 2
S7: 60
S8: 2
S10: 15CMTE: 0
+CANT:CMTE: 0
+CANT:
Q: 0
X: 4
&C: 1
&D: 1
+CLTS: 0
+CREG: 0
+CGREG: 0
+CMEE: 0
+CIURC: 1
+CFGRI: 2
+ 0,0,10
+STKPCIS: 0
+CMGF: 1
+CNMI: 2,1,0,0,1
+CSCS: "IRA"
+VTD: 1
+CALS: 1
+CHF: 0
+CAAS: 1
+CBUZZERRING: 0
+DDET: 0
+MORING: 0
+SVR: 16
+CCPD: 1
+CSNS: 0
+CSGS: 1
+CNETLIGHT: 1
+SLEDS: 64,64,64,800,3000,300
+CSDT: 0
+CSMINS: 0
+EXUNSOL: 0
+FSHEX: 0
+FSEXT: 0
+CCTURI: 0
+IPR: 9600
+IFC: 0,0
+CSCLK: 0

ACTI0
X: 4
&C: 1
0
X: 4
&C: 1
 0
S3: 13
S4: 10
S5: 8
S6: 2
S7: 60
S8: 2
S10: 15
+CRLP: 61,61,48,6
V: 1
E: 0
Q: &D: 1
+CLTS: 0
+CREG: 0
+CGREG: 0
+CMEE: 0
+CIURC: 1
+CFGRI: 2
+CMTE: 0
+CANT: 0,0,10
+STKPCIS: 0
+CMGF: 1
+CNMI: 2,1,0,0,1
+CSCS: "IRA"
+VTD: 1
+CALS: 1
+CHF: 0
+CAASHEX: 0
+FSEXT:SHEX: 0
+FSEXT:NG: 0
+DDET: 0
+MORING: 0
+SVR: 16
+CCPD: 1
+CSNS: 0
+CSGS: 1
+CNETLIGHT: 1
+SLEDS: 64,64,64,800,3000,300
+CSDT: 0
+CSMINS: 0
+EXUNSOL: 0
+F 0
+CCTURI: 0
+IPR: 9600
+IFC: 0,0
+CSCLK: 0
OK

[kcsl]

From what I can see in your profiles, the non-working module has auto-baud enabled (+IPR=0) and is in PDU mode (+CMGF=0), whereas your working module is set to fixed baud at 9600 and SMS text mode. Try sending these commands to the non-working module:

AT+IPR=9600
AT+CMGF=1
AT&W

Regards,
Joe