SIM800L module with Teensy3.5 I can not receive the message

I tested the Teensy 3.5 card with the SIM800L module,
it compiles well and there is no error but I do not receive the message

code:
/******************************************************************************

  •    _____________________________
    
  •   | Teensy >>>   Sim800L  |
    
  •    -----------------------------
    
  •        GND      >>>   GND
    
  •    RX  10       >>>   TX    
    
  •    TX  11       >>>   RX
    
  •   RESET 2       >>>   RST 
    
  • POWER SOURCE VIN >>> VCC

*/

#include <Sim800L.h>
#include <SoftwareSerial.h>

#define RX 10
#define TX 11

Sim800L GSM(RX, TX);

/*

  • In alternative:
  • Sim800L GSM; // Use default pinout
  • Sim800L GSM(RX, TX, RESET);
  • Sim800L GSM(RX, TX, RESET, LED);
    */

char* text;
char* number;
bool error; //to catch the response of sendSms

void setup(){
GSM.begin(4800);
text=“Testing Sms”; //text for the message.
number=“2926451386”; //change to a valid number.
error=GSM.sendSms(number,text);

// OR 
//Sim800L.sendSms("+540111111111","the text go here")

}

void loop(){
//do nothing
}
/*****************************************************************
I need your help please