Send SMS 3G LTE base HAT and Telit EU

I am working with a Sixfab module. The 3G/4G&LTE Base HAT with a Telit LE910C1-EU is installed in a Raspberry 4. The module is working properly with internet connection. I am trying to send a SMS by AT commands as follow:

AT+CMGS="+7923*******" #The number you want to receive sms.

This is a test msg #Ctrl+Z to send or ESC to cancel.

Everything seems to be correct and no errors appear but the sms is no received by the mobile. The SIM card is also well configured in EU as I have network connection. Does anybody have any recommendation to solve this issue?