Go back to 300-070 - Implementing Cisco IP Telephony and Video, Part 1 (CIPTV1)

Question :-

Which configuration output indicates a properly configured T1 digital voice interface?
controller T1 0/0/0 framing esf linecode b8zs pri-group timeslots 1-24 !
isdn switch-type primary-ni ! controller T1 0/0/0 framing esf linecode b8zs !
isdn switch-type primary-ni ! controller T1 0/0/0 framing esf linecode b8zs pri-group timeslots 1-24 isdn switch-type primary-ni !
isdn switch-type primary-ni ! controller T1 0/0/0 framing esf linecode b8zs ! dial-peer voice 1 pots destination-pattern 54.... direction-inward.dial port 0/0/0:23

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