So the news Airtel brings twitter via SMS in India is all over now. In an exclusive deal, only Bharti Airtel subscribers can send and receive tweets via SMS for the next 4 weeks. Afterwards it will be open to all. But, non-Airtel subscribers need not envy this. You too can tweet via SMS with a small trick as follows:-
1. Create a facebook page: Assuming twitter users are mostly early adopters, they must be having a facebook account too (Get one if you just woke up!). Now, create a fanpage. Select Website under Brand, Product or Organization category and if you don't have a website, let your twitter profile act the same. Publish the page.
2. Activate facebook mobile for the page: Edit page and activate Facebook Mobile to publish status updates to your Facebook Page on the go.
*Note: Doing such will break any previous linkage of facebook mobile with your account and you won't be able to update your profile status (facebook mobile allows only one status updating at a time). But, don't panic!
3. Link your facebook page to your twitter account: Visit http://www.facebook.com/twitter/ and link your twitter account with your facebook page.
Doing such will make sure that the status message of your facebook page is reflected back on your twitter profile.
Now, you are ready to tweet via SMS. All you need is to send an SMS to 92FACEBOOK (9232232665) to update your fanpage and thus your twitter status. And the best part is, it costs approx 50 paise to do so (national SMS charges). Read more if you want to sync the same message as your facebook status too.
4. Twitter to facebook: Add the twitter app on facebook and set it to update your facebook status whenever you tweet. 
Alternatively, you can add Selective Twitter Status and update your facebook status only when your tweet ends with a #fb.
Now, you are all set to tweet and facebook on the go.
Next part of this series will illustrate how to receive SMS when someone sends you a tweet. Say thanks to facebook by sharing or re-tweeting this!
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