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Exam : Cisco 642-452
Title : Gateway Gatekeeper Exam (GWGK)


1. Refer to the exhibit. What is the purpose of the TCL script snippet?
A. process a script exit
B. play an audio prompt
C. terminate a call
D. gather initial digits
E. interrupt a call in progress
Answer: D

2. Which three features are available during SRST failover? (Choose three.)
A. music on hold
B. IP phone speed dial
C. distinctive ring
D. call forwarding
Answer: ABC

3. Which dial peer will send calls to the PSTN via the CAS T1 using this controller configuration?controller t1 3/0framing esflinecode b8zsds0-group 1 timeslots 1-24 type e&m-wink-start
A. dial-peer voice 1 potsdestination-pattern 9.@port 3/0:1
B. dial-peer voice 1 potsdestination-pattern 9.@port 3/0:24
C. dial-peer voice 1 potsdestination-pattern 91port 3/0:1
D. dial-peer voice 1 potsdestination-pattern 91port 3/0:24
Answer: C

4. Refer to the exhibit. Highland Park Property Development is integrating a Cisco CallManager system with the existing PBX via an E1 QSIG trunk. After the initial configuration, no calls can be placed from IP phones to PBX phones. How can this problem be resolved?
A. Add the command isdn contiguous-bchan to the serial interface.
B. Change the channel selection order from descending to ascending.
C. Add the command isdn negotiate-bchan to the serial interface.
D. Increase the ISDN T302 timer to allow more time for call setup.
Answer: C

5. In a particular company, field offices route calls to headquarters out IP gateways to the PSTN. The numbers are all of the form 1-202-454-XXXX. When dialing, the field offices wish to dial only the last four digits. Which of the following Cisco IOS commands must be a part of the PSTN dial peer on the field office gateways?
A. no digit-strip
B. prefix 1
C. num-exp .... 1202454....
D. rule 1 ^202454 1
Answer: C

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