Placing outbound calls
One often overlooked feature of Exchange UM is that it can place outbound calls in three ways:
A blind transfer. In this case, UM asks the PBX to transfer the call by using a SIP REFER, and then UM bows out of the conversation altogether. This method is used when a user call answering rule contains an action that specifies a call transfer, when an OVA user uses dial by name to dial a user from the GAL or a number from his personal Contacts folder, and when AAs transfer a call to a number (whether it’s an internal extension or an external number).
A supervised transfer. This takes place when UM remains in the call path until the call is answered and it knows the call’s disposition. Call answering rules that use the find-me ...