CPI-C calls in UPIC

Input and output parameters and possible return codes are described below for each function.

In general, all parameters are passed at the interface by means of addresses. The symbols --> and <-- designate input and output parameters respectively.

The symbolic destination name and the conversation_ID are always exactly eight characters long.

The return codes supplied at the interface are independent of the transport system used. A distinction between local and remote connections is made only in the explanation of certain return codes and in notes on error messages.