Dialogic 6.2 用户手册

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页码 441
Making Two-Channel Call Transfers (Tromboning)
November 2009
198
channel provides silence generation on its output). After playback 
is completed, the application can re-establish the full duplex 
connection. 
The following series of illustrations demonstrate the changes.
In 
, there is a full duplex connection between channel 0 and 
TSlot 0, and another full duplex connection between channel 1 and 
TSlot 1.
Figure 16.   Standard Full Duplex Connections
In 
, there is a full duplex connection between TSlot 0 and 
TSlot 1. Channel 0 is recording the caller on TSlot 0. The application 
connected TSlot 1 to the reference input of channel 0 to provide echo 
cancellation.
Figure 17.   A Connected Two Channel Transfer. 
Channel 0 
In 
Ref In 
Out 
TSlot 1 
Channel 1 
In 
Out
In 
Out
In 
Ref In 
Out 
TSlot 0 
Channel 0
In
Ref In
Out
Channel 1
In
Ref In
Out
TSlot 1
Out
In
TSlot 0
Out
In
(Silence)