We offer BulkSMS In a prepaid and postpaid manner but with our postpaid system, you do not need to worry about Units or Credits as many sms providers. All you do is make a monthly subscription and you can send unlimited sms.

This is good for Large BulkSMS Businesses. The SMS Covers Nigeria, India, US and UK only.. Other countries would not deliver.

Its Only $42.99/month

And it works only with WHSMS Software - http://www.whsms.org

If you would like to use it with another SMS Software aside WHSMS, then you can but we wont provide support for it. As its a Public API but however, you would need to Install WHSMS Somewhere else, as the API is actually your WHSMS Site. And actually purchase a WHSMS License.

http://www.whsms.org/docs/Smsultd for full details

Email: sales@whsms.org