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

30 Chapter2
Conversations
Two-Way Conversation Without Confirm
Two-Way Conversation Without Confirm
In a two-way conversation, both sides send and receive data. Because
the two sides must take turns talking, they use the following protocol:
1. Only one person can talk at a time.
2. The person that initiated the conversation talks first after
communication is established.
3. The person talking must relinquish control before the other person
can speak.
4. The person with permission to speak is the only one who can end the
conversation.
Figure 2-3 is an illustration of a two-way conversation without confirm.
Because a two-way conversation is more complex than a one-way
conversation, more control information is needed to manage it.
Figure 2-3 Two-Way Phone Conversation Without Confirm