SMS Notification about New Projects to be integrated

I need a sms notification (worlwide) about new jobs to be integrated on [login to view URL] I do not need such services like for example, [login to view URL] etc. as they are not free. Email notification has been already integrated. Now I need sms notification. - Example: a new job posted for English to Russian languages. So, all registered linguists who indicated English to Russian pair as their working language pair should receive an email notification about this new job. - Users should have ability to unsubscribe from sms notification. - The SMS should be both compatible with CDMA/GSM Due to limited budget I can pay not more than $50 for this project. This project is an excellent opportunity for a freelancer to get a 5-star review. The bid with lower amount will be preferred.