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Refer to the exhibit.
A user reports that when they call a specific phone number, no one answers the call, but when they call from a mobile phone, the call is answered. The engineer troubleshooting the issue is expecting the far-end gateway to cut through audio on the 183 Session Progress SIP message. Which SIP Profile configuration element is necessary for the Cisco Unified Communications Manager to send acknowledgement of provisional responses?
A. Allow Passthrough of Configured Line Device Caller Information must be enabled.
B. Accept Audio Codec Preferences in Received Offer must be set to On.
C. On the SIP Profile, the configuration parameter SIP Rel1XX Options must be set to Send PRACK for all 1xx Messages.
D. Early Offer for G Clear Calls must be enabled.
An engineer is troubleshooting local ringback on a Cisco SIP gateway. The gateway is not ignoring the SIP 180 response with SDP from the service provider, and the far end device is sending the 180 with SDP to play ringback from the IP address specified in the SDP. Which configuration change must be made on the gateway to resolve the issue?
A. Router(config-sip-ua)# no disable-early-media 180
B. Router(conf-voi-serv)# no disable-early-media 180
C. Router(conf-voi-serv)# disable-early-media 180
D. Router(config-sip-ua)# disable-early-media 180
An administrator troubleshoots call failure in a new deployment and finds that the SIP INVITE messages sent to the service provider contain a diversion header with the user's 4-cigit directory number. These 4-digit directory numbers range from 1000 to 9899. The service provider is rejecting the calls because it requires that the diversion header contain 10 digits. Which command on the Cisco Unified Border Element resolves this issue for all users?
A. voice class sip-profiles 105 request INVITE sip-header Diversion modify “andlt;sip:1(...)@” “andlt;sip:263411\1@”
B. voice class sip-profiles 105 request INVITE sip-header Diversion modify “andlt;sip:(...)@”
“andlt;sip:263411\1@”
C. voice class sip-profiles 105 request INVITE sip-header Diversion add “andlt;sip:(...)@” “andlt;sip:263411\1@”
D. voice class sip-profiles 105 request INVITE sip-header Diversion modify “andlt;sip:1(...)@” “andlt;sip:263411\2@”
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