| Class | Notification | Base class for Notifications |
| Class | ConnectionNotification | Notification fired with connection events |
| Class | UnsolicitedNotification | I'm generated in some devices that like to send unsolicited notifications |
| Class | NetworkRegNotification | I'm generated by +CREG=int,int events |
| Class | NewSMSArrived | I'm generated whenever a new SMS arrives |
| Class | CallNotification | I represent a call from a number |
| Class | NotificationsManager | I manage the notifications produced in the communications block |