Facility Interface Codes

[bfuller83]

I have recently installed DID trunks and am in the process of getting them setup for in/out communication. The phone company is requiring me to provide them with FIC (Facility Interface Codes) Dose anyone know how I determine what code to chose? The options they give me are:

TC31E, TC31M, TC32E, TC32M, TL11E, TL11M, TL12E, TL12M, TL31E, TL31M,TL32E, TL32M

Bradley A. Fuller
Manager, Network Infrastructure
Kellogg Community College

 

[allenmac]

I found a document with these definitions:

TL11E E&M Tie Trunk, Lossless, 2W, Type I, originates with ground on E
TL11M E&M Tie Trunk, Lossless, 2W, Type I, originates with battery on M
TL12E E&M Tie Trunk, Lossless, 2W, Type II, originates with ground on E
TL12M E&M Tie Trunk, Lossless, 2W, Type II, originates with battery on M
TL31E E&M Tie Trunk, Lossless, 4W, Type I, originates with ground on E
TL31M E&M Tie Trunk, Lossless, 4W, Type I, originates with battery on M
TL32E E&M Tie Trunk, Lossless, 4W, Type II, originates with ground on E
TL32M E&M Tie Trunk, Lossless, 4W, Type II, originates with battery on M


Looks like these are for copper circuits.