CID: ISDN signaling

I am preparing for the CID exam and have a question that I need some help resolving. The CiscoPress CID book states on page 329 that a T1 uses in-band signaling and a E1 uses out-of-band signaling. I also have the Boson CID test #1 and it states that both use out-of-band signaling. I wrote to

Re: CID: ISDN signaling

On Wed, 11 Oct 2000, Alldread AK2 Robert J wrote: I am preparing for the CID exam and have a question that I need some help resolving. The CiscoPress CID book states on page 329 that a T1 uses in-band signaling and a E1 uses out-of-band signaling. I also have the Boson CID test #1 and it