RingCentral Phone app allow To Voicemail option for call forwarding members

Hi, It would be best if the call forwarding members of another extension would have the ability to use To Voicemail when the calls ring on their RC Phone desktop app. Right now, To Voicemail option is only available if the call is to their direct extension, but if they are within another users forwarding list it is Greyed out.

Thank you.