Buch1
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Phoning
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Query Calls
Query Calls
Information on the Chapter
Initiating a Query Call
Ending a Query Call
Toggling between Conversations
Ending One of the Two Calls
Connecting Both Communication Partners
Initiating Query Call to Third Subscriber
Information on the Chapter
Initiating a Query Call
Ending a Query Call
Toggling between Conversations
Ending One of the Two Calls
Connecting Both Communication Partners
Initiating Query Call to Third Subscriber
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