EMS (Extended Messaging Service) or Long SMS is a special feature of ZNI Bulk SMS Gateway which enables you to send SMS in a extended way of up to 900 characters in length.

EMS/Long SMS is really useful when you want to send some information which can not be sent in just 160 characters like marriage invitations, exam results, information to employees and many other things.

Long SMS sometimes also termed as Concatenated messages since at the time of sending they will be broken into SMS of 150 characters each but once they arrived on the recipients mobile they will be merged/concatenated into one.

So practically you are sending multiple SMS but the recipient will get the SMS as one.