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QUESTION 191 Refer to the exhibit. An engineer is troubleshooting a codec negotiation issue where both endpoints that are involved in the call support the codecs listed in the exhibit. Which audio codec is selected if a call between two endpoints in Region 1 is placed? Continue reading →
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QUESTION 171 A customer is integrating two video solutions between regions using a Cisco Unified Border Element and finds that some of the RTP payloads are not compatible with the Cisco Unified Border Element configuration. Which two actions does Cisco recommend to solve this issue? (Choose two.)
A. Specify the video payload on the voice service. B. Configure a transparent codec on the dial peers. C. Configure RTP payload mapping on the dial peers. D. Configure asymmetric payload on the voice service. E. Set up a voice class for the video codec. Continue reading →
QUESTION 161 Hackers are sending calls through a gateway router that is running SIP. The engineer blocks all SIP messages to the router except from their SIP server, which has an IP address of 188.8.131.52. The customer also must connect via SIP to their Cisco Expressway server with an IP address of 10.1.10.110. Which series of commands secures the router from the hackers?
A. voice service voip voip security allow ipv4 184.108.40.206 255.255.255.255 ipv4 10.1.10.110 255.255.255.255 B. voice service voip ip address trusted list ipv4 220.127.116.11 255.255.255.255 ipv4 10.1.10.110 255.255.255.255 C. voice service voip allow-connections sip to sip ipv4 18.104.22.168 255.255.255.255 ipv4 10.1.10.110 255.255.255.255 D. voice service voip address-hiding ipv4 22.214.171.124 255.255.255.255 ipv4 10.1.10.110 255.255.255.255 Continue reading →