Some debug.

api/modem/sms/sms.go

@@ -61,7 +61,7 @@ func (d *dialer) Send(number, msg string) error {
 
 // Reads all new messages
 func (d *dialer) ReadNew() ([]string, error) {
-	resp, err := d.port.Send("AT+CMGL")
+	resp, err := d.port.Send("AT+CMGL=\"ALL\"")
 	if err != nil {
 		return nil, fmt.Errorf("AT+CMGL request: %w", err)
 	}