Home » Cisco » 642-437 » When an inbound PSTN call from 4087071222 arrives at the ISDN port that is shown in the exhibit, whichdial peer will be matched for the inbound leg?
Refer to the exhibit.
When an inbound PSTN call from 4087071222 arrives at the ISDN port that is shown in the exhibit, whichdial peer will be matched for the inbound leg?
A. Dial-peer 123, because destination-pattern takes precedence over answer-address.
B. Dial-peer 2123, because answer-address takes precedence over destination-pattern.
C. The matching inbound dial peer will be selected at random.
D. Although dial-peer 2123 takes precedence, it will not be matched because the command direct- inward-dial is missing.
E. Dial-peer 123 will be matched because dial-peer 2123 will strip all the digits.
Correct Answer: B
Explanation/Reference:
Explanation: The inbound call will first try to match the with the incoming called-number command. We canalso use ‘answer-address command’ which is searched if ‘incoming called- number’ is not present. And ifthere is no ‘incoming called-number command’ and ‘answer-address command’, then the gateway will huntfor dialpeer with destination-pattern of calling party number. http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/dial_peer/dp_confg.html#wp1067989