Yes. Our Bulk SMS on-line platform supports the ability to upload numbers and send out Bulk SMS messages without the need for an API connection.
Our on-line platform enables you to upload a list of mobile numbers (copy, paste or .CSV text file) and we will send out to the list of mobile numbers using our Bulk SMS software.
This means you do not have connect to our Gateway using an API, to perform Bulk SMS sends.
We can support up to 500,000 mobile numbers per .CSV text file for uploading to our platform manually. Any more, you can split into multiple sends or connect to our Bulk SMS Gateway (HTTP, XML, FTP, SMPP).
Read more: http://www.mfusion.com/messaging/bulk_sms/