I currently have an SV8100 with a PRI installed serving 4 locations using ip phones. I need to have each location be able to set their own night service. Their incoming calls ring in to virtual extensions at each site via DID. I have been through the night mode options and what I can not figure out is how the trunks get put into night service groups when using DID. I have only 1 outgoing trunk group. Thanks in advance.