SMS from SMPP

KAnnel+smppd + usb modem work fine and TRACCAR can send message to mobile/tracker but not notify on screen when receive SMS from SMPP.

here debug of traccar with sms received :

2017-10-05 10:05:44 DEBUG: SMS Message Received: Test help, Source Address: 3933571xxxxxx
2017-10-05 10:06:38 DEBUG: SMS Message Received: Prova messaggio da mobile, Source Address: 3933571xxxxxx

On event report not show any message when debug report sms received , notify check are checked on web interface.

How to solve trouble ?
Thanks

Sorry, missed last sentence.

You should be receiving it if phone number is configured correctly for the device.

Ok sintax with +39335xxxxxx not work but only 39335xxxx work fine.

Thank for all