NEC NVM-2000WS Instructions For Installing And Activating page 13

Activating Fax Ports and Features
Installing Fax Component in the Voice Mail
Installing Fax Component in the Voice Mail (cont'd)
6. On the Select Components screen:
Select the checkbox under Fax Board (as shown above).
Select the radio button next to Dialogic JCT (as shown above).
Click Next. You see a status screen as the Voice Mail system is upgraded:
Issue 1-0 9