The following operations are supported. For a formal definition, please review the Service Description.

• GetCreditBalance
  Returns the number of credits remaining.
• GetMessageRecipientStatus
  Returns the status of a message for a specified recipient number and user phone message id.
• IsSenderIdAvailable
  Returns a boolean confirming whether a SenderId is available.
• QuickSend
  Allows you to send a single SMS message instantly to many recipients.
• Send
  Allows you to send multiple SMS messages, each with its own optional delivery time, to many recipients. String interface for non .Net clients.