单项选择题
Which ephone-dn type does the exhibit represent? ()
A.shared ephone-dn B.overlaid ephone-dn C.dual-line ephone-dn D.single-line ephone-dn E.dual-number ephone-dn F.two ephone-dns with one number
A.DND Control B.Conferencing C.Blind Transfer D.Caller-ID Block E.Anonymous Block F.Consultative Transfer
A.Router A: dial-peer voice 1 pots B.Router A: dial-peer voice 1000 voip C.Router T1: dial-peer voice 1 voip D.Router T1: dial-peer voice 1 pots E.Router T2: dial-peer voice 1000 pots F.Router T2: dial-peer voice 9999 pots