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three party service (3PTY)

Three-party conferencing, the Three Party Service (3PTY), is a feature of telephone services in digital fixed and mobile networks. Three-party conferencing allows three parties to call each other at the same time, each to each.

The connection setup for a three-party conference can be made by the third party trying to reach the call partner who is currently in an active call. After the call waiting and the signaling of the connection request, the call waiting party is added to the existing connection. On the other hand, a subscriber in an existing connection can dial a third subscriber himself and include him in the conversation (connection). With this connection type, two connections are always active.

The three-party conference feature allows negotiations, voting and small conferences to be conducted quickly and directly. Each conference participant can make a call to anyone else at the same time.

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Englisch: three party service - 3PTY
Updated at: 03.03.2008
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