Installing 14 ISDN-PRI toll free inbound circuits on a new toll free number. Want to have primary and secondary signaling channels. Because trunk groups limited to 255 members, will need to create 2 trunks groups, one with 255 channels/members and one with 77 for total 332 B channels and a primary and secondary D channel in each trunk group (1st trunk group will have it's own signaling group with a primary and secondary D channel and 2nd trunk group will have it's own primary/secondary D channels. Does this sound right? Will be adding even more circuits/channels as time goes on, about 1000 total incoming lines. Am I on the right track with programming? Any help appreciated. No routers factor in for this.