CPI-C Implementation in ABAP 

Purpose

The following statements are available for implementing communication at the CPI-C level in ABAP:

COMMUNICATION INIT: Initialization

COMMUNICATION ALLOCATE: Set Up Connection

COMMUNICATION ACCEPT: Accept Connection

COMMUNICATION SEND: Send Data

COMMUNICATION RECEIVE: Receive Data

COMMUNICATION DEALLOCATE: Close Connection

They are explained here individually.

The Return Codes in ABAP are then listed.