ZyXEL Communications P-2302R-P1 - Manual (Page 85)

P2302R-P1 Support Notes
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
2007 ZyXEL Communications Corporation.
85
either one on hold.
Call Waiting
This allows you to place a call on hold while you answer another incoming call on the same telephone number.
If there is a second call to your telephone number, you will hear a call waiting tone.
Scenario
A calls B and they start conversation
C calls A
In this scenario, there are 3 kinds of actions available:
Below call flow graphs could help you better understand the call waiting working mechanism.
Scenario 1: If A presses flash key + 0, A will reject C.
Scenario 2: If A presses flash key + 1, A will disconnect B and answer C.