Fujitsu F9600 F9600c 用户手册

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页码 96
55
HOOKFLASH SIGNAL TO TRUNK
The Hookflash Signal to Trunk feature allows the user to send a 
hookflash signal to an outside CO line during a conversation.
To register a hookflash signal:
Action
Results
1. Ask the caller to wait.
2. Press Flash.
You hear recall dial tone.
3. Dial the hookflash signal
You hear dial tone from 
code _____ .
another PBX or central 
office (CO). Follow the 
instructions given to you
by the outside source to
activate features or place
outgoing calls.