const char server[] = "api.thingspeak.com";
const char resource[] = "/update??api_key=0LM3KKFRE13A0NK9&field1=";
apn = internet.movistar.ve;
user and password = movistarve;
internet.digitel.ve
gprs.digitel.ve
gprsweb.digitel.ve
AT+CSTT="gprsweb.digitel.ve"