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UnHold:
When the IP phone retrieves a hold call.
Mute:
When the IP phone mutes a call.
UnMute:
When the IP phone un-mutes a call.
Missed Call:
When the IP phone misses a call.
IP Changed:
When the IP address of the IP phone changes.
FWD Incoming Call:
When the IP phone forwards an incoming call.
Reject Incoming Call:
When the IP phone rejects an incoming call.
Answer New Call:
When the IP phone answers a new call.
Transfer Finished:
When the IP phone completes to transfer a call.
Transfer Failed:
When the IP phone fails to transfer a call.
Idle To Busy:
When the state of the IP phone changes from idle to busy.
Busy To Idle:
When the state of phone changes from busy to idle.
