Feature
Malicious call trace
EC500 on/off
Transfer to voice mail
Whisper page
Recording voice call to
messaging
Bridge line and call appearances
Extend-call
Hold recall
Transfer recall
Busy indicator
Message waiting indicator
About the user interface/failover experience
Normal Operation with
CM
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Failover Operation with a
Generic SIP Gateway
No
No
No
No
No
No
No
No
No
One-button dial - Yes
Busy indicator - No
No
Issue 1 May 2011
159