sgbeat

Steps:
1. sign up for twitter.
2. active twitter from email.
3. sign up for sgbeat.
4. follow the instructions on signing up the sgbeat.
5. wait for the email to be sent to you, from sgbeat, normally takes up a few hours, but within one day.
6. once active, click on profile "edit personal profile".
7. send a code to the number, if your service provider is singtel you should send to 9634-6465 then if your service provider is M1 send your sms to 8276-1938.
8. then once your account is activated, press "Link to twitter, facebok or plurk".
9. then sign in to twitter and do the procedures then you can start updating twitter using sms.