Setting your number to forward straight through to a voicemail box without a main greeting is simple.


Create an extension for its voicemail box. Delete all the forwarding numbers from the extension. 




Replace the default voicemail greeting with your desired message. 



Now you need to go to "Your Numbers" under "Settings".

 

 

     


Set the simple forwarding number's "Forwarding Options" to "Transfer to extension..." and select the extension.