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Example: Call Park
Park allows a user to place a call on hold, ‘store’ it somewhere, go to another phone, and request to ‘retrieve’ it so that call continues on new phone
Dialog moves from
Caller to UA 1
Caller to park function
Caller to UA 2
Lets consider just the initial park request
Park
Server
UA 1
Caller
UA 2
1
2
3
PPT Version