1) The Mach5’s WAN port is connected to the LAN port on the cable modem.
2) The Mach5’s LAN port is connected to port 7 on the GS110.
3) The remaining 6 port on the Netgear GS110 are for connection to the Aastra        6731i telephones.
4) Grandstream GX4104 WAN port is connected to port 7 of the Netgear GS110.
5) GX4104 LAN port is connected to the WAN port on the GX 4008.
6) The external bell is connected to FX8 on the Grandstream GX 4008
7) The remaining 7 port on the GX 4008 Fx1-Fx7 connect to the business caller ID box.
8) SUGGESTED  2X2 BACK BOARD