Google Calender SMS Reminder

We have our own email server and use Thunderbird as the email client, however, I use gmail for personal correspondences. I find that the reminder of Google calender very useful as it can send text messages to my mobile phone to remind me of appointments.

In order to have reminder for my business appointments, I installed Thunderbird add-ons: Lightning and Provider for Google Calendar so that I can set the appointment reminder using Google calendar within Thunderbird.

When an event is created, I can choose either local calendar or Google calendar.