I have an SX200 switch to service two different office environments. They will be sharing the phone system. They currently have 2 different networks. I would like to make the whole install using all IP phones. Do I need to get everyone on 1 network to make this work? (I plan on running the pc's on the pc port on the phone.

Thanks in advance.

This is where vlan and layer 2 switches would be required IMHO. The phone system vlan would be shared and tagged. User ports would only have their data vlan untagged and phone tagged. Server etal devices would only have the data vlan untagged per company. The connection between the 2 companies switches could only have only the phone vlan.

If you have the option, LLDP MED to give the phones their vlan info would work for most devices in leiu of DHCP.

Thanks, John. Think I'll crawl back into my cave and fetch my cans and string...