IBM Silverpop Engage short messaging service (SMS) is a web-based mobile messaging service application that enables organizations to:

• Import and manage list data.
• Create, manage, and send mobile terminated text messages to receive mobile originated message.
• Process unsubscribe messages.
• Report on SMS activity.

Silverpop Engage SMS pricing is based on the country where messages are being sent to and include multiple fees for the following:

• A monthly base access fee for the type of code required for each country and its corresponding setup fee
• Transactional fees by country for the message volume being sent

Find out more here.