making a BLF type key to watch MWI for another user

[Yealink_Michael]

hi Brandywine

for this request , would you please make the following details clear for me :

1. how does Cisco or GS phone realized this feature ? by set a DSS Key as Voicemail and the value is ext200? use line 1 which also register to the same PBX of ext200, and if setting take effect ,then the led of DSS Key will light up ?

2. how does Cisco or GS phone alert the monitors that there is a new voicemail to ext200? by light up a led light , and turn red or some other color? or just promote a window and showing a new voice mail to ext200?

3. how does the other extension to listen the voice mail of ext 200 when using Cisco or GS Phones?

4. why the other person need to monitor the voice mail of ext200? any user scenario ?

all above questions are aimed at making this request more clear and help our R&D to evaluate and realized it !

looking forward to your reply!