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Implementing Cisco Advanced Call Control and Mobility Services (CLASSM) Questions 66–70 (page: 15)

Updated On: 10-Feb-2026

An administrator is working on an issue between the customer's Cisco Unified Border Element and the service provider. The provider only wants to see mid-call signaling from the Cisco Unified Border Element for fax calls.
Which command must be configured on Cisco Unified Border Element?

  1. midcall-signaling passthru
  2. no update-callerid
  3. midcall-signaling passthru media-change
  4. midcall-signaling preserve-codec

Answer(s): C



For a SIP to SIP call flow, when does Cisco Unified Border Element require transcoding resources for DTMF?

  1. interworking between an OOB method and RFC2833 for flow-around calls
  2. interworking between H.245-signal and rtp-nte
  3. interworking between an OOB method and RFC2833 for flow-through calls
  4. interworking between H.245-alpha numeric and sip-kpml

Answer(s): A


Reference:

https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-border- element/200412-DTMF-Relay-and-Interworking-on-CUBE.html#anc35



Where is the dtmf-relay command configured on Cisco Unified Border Element?

  1. in the voice-class VoIP configuration
  2. in the VoIP dial peer
  3. in global SIP configuration
  4. in the VoIP or POTS dial peers

Answer(s): B


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/dtmf- relay.html





Refer to the exhibit. Calls incoming from the provider are not working through newly set up Cisco Unified Border Element. Provider engineers get the 404 Not Found SIP message. Incoming calls are coming from the provider with called number "222333444" and Cisco UCM is expecting the called number to be delivered as

"444333222". The administrator already verified that the IP address of the Cisco UCM is set up correctly, and there are no dial peers configured other than those shown in the exhibit.
Which action should the administrator take to fix the issue?

  1. Change the destination-pattern on the outgoing dial peer to match "444333222".
  2. Set up translation-profile on the incoming dial peer to match incoming traffic.
  3. Create specific matching for "222333444" on the incoming dial peer.
  4. Fix the voice translation-rule to match specifically number "222333444" and change it to "444333222".

Answer(s): B





Refer to the exhibit. Users report that outbound PSTN calls from phones registered to Cisco UCM are not completing. The local service provider in North America has a requirement to receive calls in 10-digit format. The Cisco UCM sends the calls to the Cisco Unified Border Element router in a globalized E.164 format. There is an outbound dial peer on Cisco Unified Border Element configured to send the calls to the provider. The dial peer has a voice translation profile applied in the correct direction but an incorrect voice translation rule applied.
Which rule modifies DNIS in the format that the provider is expecting?

  1. rule 1 /^\+\([^1].*\)/ /011\1/
  2. rule 1/^\+1\([2-9]..[2-9]......$\)/ /\1/
  3. rule 1 /^\([2-9]..[2-9]......$\)/ /\1/
  4. rule 1 /^\+1\([2-9]..[2-9]......$\)/ /\0/

Answer(s): B



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