Dialing From A V.25 Bis Data Unit Keypad; Figure 3-9: V.25 Bis Dialing From The Data Unit Keypad - PictureTel Concorde 4500 Servicing Manual

Dialing from a V.25 bis Data Unit Keypad

This section describes the sequence of events that occurs during V.25
bis dialing from the data unit keypad.
1. When dialing is complete and the connection is established, the data
unit asserts the DSR signal.
2. The data transfer phase begins; both the Concorde•4500 and the data
unit transfer their data.
3. If the far end disconnects, the data unit deasserts the DSR signal.

Figure 3-9: V.25 bis Dialing from the Data Unit Keypad

V.25 bis Call Setup and Disconnect
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