Which three capabilities cannot be configured if the default dial peer is matched? (Choose three.)

A.
disable DID

B.
invoke a Tcl application

C.
enable dtmf-relay

D.
disable VAD

E.
set codec to G.711

F.
set preference to 1

Explanation:
The Default Dial-Peer 0 peer_tag=0, pid:0
If no incoming dial peer is matched by the router or gateway, the inbound call leg is automatically
routed to a default dial peer (POTS or Voice-Network). This default dial peer is referred to asdialpeer 0orpid:0.
Dial-peer 0(pid:0) has a default configuration that cannot be changed.
The defaultdial-peer 0fails to negotiate non-default capabilities, services, and applications
such as:
http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a008010fed1.shtml