LU 6.2 API Application Programmer's Reference Guide (30294-90008)

Chapter 2 31
Conversations
Two-Way Conversation With Confirm
Two-Way Conversation With Confirm
In a two-way conversation with confirm, the sending side issues a
confirmation request and must wait for confirmation from the receiving
side before transmitting any more information. Figure 2-4 is an
illustration of a two-way conversation with confirm.
Figure 2-4 Two-Way Phone Conversation With Confirm
Confirmation ensures that the two sides of the conversation remain
synchronized, but it increases the amount of control information and
the number of transmissions necessary to transmit data.