Well, as u can understand from the subject, now the sms notifications of google calendar works with egyptian providers, i tried with vodafone and mobinil and it works smoothly.
steps are easy :
1- go to www.gmail.com and open your mail account.
2- click on the calendar link on the top left of the page.
3- in the calendar page click on settings on the top right of the page.
4- click on mobile setup tab.
5- enter your mobile number and then you will recieve a confirmation code,
6- enter the confirmation code and verify.
7- you will be redirected to notifications page, enable all SMS notifications, and setup default reminders for each event, you can setup up to 5 reminders.
you are done, and you can setup repeated events, for example i setup a daily event to wake me up by sms every morning.
another trick if you want to send sms to another person and you have no credit , just enter a new event, with the title