H3C XE 200/2000 IP, Operation Manual

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Operation Manual – Call Services
H3C XE 200/2000 IP PBX
Chapter 16 Call Pickup Service
16-1
Chapter 16 Call Pickup Service
16.1 Overview
16.1.1 Introduction to Call Pickup Service
When subscriber A calls subscriber B, whose phone then rings, subscriber C using the
call pickup service can answer the call by dialing the access code and subscriber B’s
phone number. In this way, subscriber C can have a conversation with A. In brief, the
call pickup service enables a subscriber to answer an incoming call to another
subscriber.
The call pickup service falls into unilateral call pickup and bilateral call pickup.
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Unilateral call pickup service
The unilateral call pickup service enables a subscriber with the call pickup right to
answer a call that the XE IP PBX makes to another subscriber. For example, subscriber
B has the call pickup right and the XE IP PBX makes a call to subscriber A, whose
phone then rings. B can answer the call by dialing the access code and A’s phone
number. Then subscriber A’s phone stops ringing.
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Bilateral call pickup service
The bilateral call pickup service enables a subscriber with the call pickup right to
answer a call that a second subscriber makes to a third subscriber. For example,
subscriber C has the call pickup right and subscriber A makes a call to subscriber B,
whose phone then rings. C can answer the call by dialing the access code and B’s
phone number. Subscriber B’s phone stops ringing, and A can have a conversation with
C.
In the above example, if subscriber A uses the outgoing call authority control service
and is not allowed to call subscriber C, subscriber C is unable to answer the call
originated by subscriber A to subscriber B.
For a call which has multiple callees, if the callees ring in sequence, the call pickup
service is supported, and if the callees ring simultaneously, the call pickup service is not
supported.
The call pickup service requires the cooperation of the media server.
16.1.2 Using Call Pickup Service
The call pickup service must be enabled on the XE IP PBX before being used by a
subscriber. Refer to Call Pickup Service Configuration for operation details.