EC20 GSM Module sending SMS

Knowledge Base SMS
1

while sending an SMS in EC20, in buffer not getting the sending SIM ‘mobile number’. instead of that,another number getting…
for example:
"\r\n+CMT: "55484950485553484857,“24/02/08,14:42:28+22”\r\nwJ1
and not getting the typed message also.
…

2

What command are you using to send the SMS?

What do these AT commands return?

AT+CMGF?
AT+CNMI?