Dialogic 6.2 Manuale Utente

Making Two-Channel Call Transfers (Tromboning)

November 2009

199

In 

, the application places the caller on TSlot 1 on hold and 

generates silence from channel 1 to the caller. There is a full duplex 

connection between channel 0 and TSlot 0. Channel 0 is playing a 

voice prompt to the caller on TSlot 0 while recording.

To take the caller on TSlot 1 off hold, re-establish the connections as 

they were in 

.

Your application terminates a two-channel call transfer by deleting 

the transfer connections and restoring the original connections that 

were present before the two-channel call transfer was created. After 

terminating a two-channel call transfer, the application remains 

connected to the original caller (person A). There are three situations 

that cause a two-channel call transfer to be terminated:

„

If the application detects a recognition signal that indicates 

terminating the two-channel call. 
The application hangs up on the called party (person B) while 

staying connected to the original calling party (person A). 

„

The called party hangs up. 
The application alerts the original caller of the remote hang up, 

then disconnects the called party while staying connected to the 

original calling party. 

„

The original calling party hangs up. 
The application should then disconnect the entire two-channel 

call transfer and wait for another call.

Channel 0

In

Out

Out

Out

In

In

TSlot 0

TSlot 1

Ref In

Channel 1

In

Out

Ref In

(Silence)