I am currently taking the NEC Cert classes for the SV9100, so no actual NEC help yet. The tech we had working on this, that was completely certified, quit and this was dropped in my lap. Basically, we currently have 1 site up (the Primary Site) and running on a SV9100 with IP Phones. We are in the process of adding a SV9100 at another site (the Secondary Site) for the same school board. The sites are networked together with fiber. The 2 systems will be NetLink'd, and the 2nd site has IP Phones as well. Are the IP Phones at the second site programmed to look at the IP of the primary site or the secondary site? Any help would be greatly appreciated. Thank you.

IF they are being netlink'd they will look back to the main cabinet VOIP address.

From the Netlink manual;
IP Terminal
All DT800/DT700 terminals can register to either the primary or a secondary
system. Softphones and wireless LAN phones must still register to the
primary system.
The SV9100 Encryption feature is only supported in the primary system.

Thank you, helpifican. I must have skimmed over that part in the NetLink Manual. I appreciate your help.