The Spring Integration adapter for SMPP includes two adapters and two gateways:
<itemizedList> <listItem> Inbound Channel Adapter to receive sms from SMSC. </listItem> <listItem> Outbound Channel Adapter to send sms through SMSC. </listItem> <listItem> Inbound Gateway to receive sms from SMSC. </listItem> <listItem> Outbound Gateway to send through SMSC. </listItem> </itemizedList>