Taken from a Partner Mail VS R5 user guide....
Screening Calls
This feature allows you to listen to a caller leaving a message in your voice
mailbox.
NOTE:
The Call Screening feature is not available on all systems. See your
System Manager for feature availability. For more information about
using this feature, see the instructions that came with your
communications system.
The Partner Messaging Flash Card User Guide makes no mention of the Call Screening Feature. Nor does the Administration Manual.
Also there is no mention of Record A Call or Call Screening on Partner Mail R3 (The Seperate box that hangs on the wall)
Unfortunately I could not find a comparisons chart that shows which Partner Mail Systems have the screening feature, and which do not.
I do remember that ACS R3 and VS R5 came out around the same time and I blown away by 2 features. Record a Call, and Call Screening.
So, personally I don't think it's just a matter of being able to program a Call Screening button on a phone.
I could be wrong though
