Avaya 1040E User Manual

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Multi-Level Precedence and Preemption
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Order of call preemption
The following is the order of call preemption:
1. the lowest precedence call 
2. If there are multiple calls on the same precedence level, then the 
following order is used
a. any outgoing call that is unanswered
b. the oldest incoming call that is unanswered
c. the oldest held call
Preemption scenarios and behavior
The following table describes the IP Deskphone behaviors that occur 
when receiving a call of higher precedence than the presented current 
calls and no call appearances are available. 
Table 20: When a preemption call is received
Call state
Preemption behavior
While on an active call
1. Preemption tone is played through the 
Handsfree speaker.
2. The active call is removed.
3. The preemption acknowledgment screen 
is displayed. See 
4. When the preemption call is 
acknowledged by pressing OK, the 
preemption tone is ended and the new 
preemption precedence call is displayed.