call fwd busy

Hello Community. We are using Version 5.0.7 We are attempting to use our Fusion to deliver an Analog Line via an ATA (Fanvil) to an NEC 8100 as a CO line. We can get the first Fusion extension, 301 to work just fine. We built X 302 using another Fanvil ATA for a Analog line for CO port 2 on...