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Global Call IP Technology Guide — November 2007 69
Dialogic Corporation
IP Call Scenarios
3.2.7 Unsuccessful H.450.2 Supervised Transfer Scenarios
Note: The same failures that can potentially occur in blind transfer, may take place in supervised transfer
as well. See Section 3.2.4, “Unsuccessful H.450.2 Blind Call Transfer Scenarios”, on page 61 for
more information. The difference being that the secondary, consultation may optionally be cleared
as specified in H.450.2.
There are a several other scenarios where a supervised call transfer may fail. The most common
scenarios are described in the following topics:
• Party C Timeout
• Party C Rejects the Transfer Request
• Party B Rejects the Transfer Request
• Party B Timeout
For simplification purposes, none of the following figures indicate the opening and closing of
logical channels (and the associated media sessions) because the control procedures are consistent
with typical non-transfer related H.323 calls.