Inbound CNAM dips are sent to Yealink Phones, R! Webapp call history, but they're not sent to Voicemail Email Notifications
Email copies of voicemails would work best if the CNAM pull sent to the phone and R! webapp was also sent to the R! email notification for voicemails.
Ideally it would pull from r! contacts first, then if no r! contact exists for the number, it would pull from the CNAM value for the number.