what happens to a Cisco IOS SIP VoIP dial-peer that never received any responses to its out-of-dialo

Which statement about what happens to a Cisco IOS SIP VoIP dial-peer that never received any
responses to its out-of-dialog OPTIONS ping is true?

A.
Its admin state will be up but operational state will be down.

B.
Its admin and operational state will be down.

C.
Its admin and operational state will remain up.

D.
Its admin state will be up but operational state will be “busy-out”.

E.
Its admin and operational state will be “busy-out”.

Explanation:
You can check the validity of your dial peer configuration by performing the following tasks:
• If you have relatively few dial peers configured, you can use the show dial-peer voice command
to verify that the configuration is correct. To display a specific dial peer or to display all configured
dial peers, use this command. The following is sample output from the show dial-peer voice
command for a specific VoIP dial peer:
router# show dial-peer voice 10
VoiceOverIpPeer10
tag = 10, dest-pat = \Q’,
incall-number = \Q+14087′,
group = 0, Admin state is up, Operation state is down
Permission is Answer,
type = voip, session-target = \Q’,
sess-proto = cisco, req-qos = bestEffort,
acc-qos = bestEffort,
fax-rate = voice, codec = g729r8,
Expect factor = 10,Icpif = 30, VAD = disabled, Poor QOV Trap = disabled,
Connect Time = 0, Charged Units = 0
Successful Calls = 0, Failed Calls = 0
Accepted Calls = 0, Refused Calls = 0
Last Disconnect Cause is “”
Last Disconnect Text is “”
Last Setup Time = 0
• To show the dial peer that matches a particular number (destination pattern), use the show
dialplan number command. The following example displays the VoIP dial peer associated with the
destination pattern 51234:
router# show dialplan number 51234
Macro Exp.: 14085551234
VoiceOverIpPeer1004
tag = 1004, destination-pattern = \Q+1408555….’,
answer-address = \Q’,
group = 1004, Admin state is up, Operation state is up
type = voip, session-target = \Qipv4:1.13.24.0′,
ip precedence: 0 UDP checksum = disabled

session-protocol = cisco, req-qos = best-effort,
acc-qos = best-effort,
fax-rate = voice, codec = g729r8,
Expect factor = 10, Icpif = 30,
VAD = enabled, Poor QOV Trap = disabled
Connect Time = 0, Charged Units = 0
Successful Calls = 0, Failed Calls = 0
Accepted Calls = 0, Refused Calls = 0
Last Disconnect Cause is “”
Last Disconnect Text is “”
Last Setup Time = 0
Matched: +14085551234 Digits: 7
Target: ipv4:172.13.24.0