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Implementing Cisco Advanced Call Control and Mobility Services (CLASSM) Questions 116–120 (page: 25)

Updated On: 10-Feb-2026



Refer to the exhibit. For long-distance calls, users must prefix their dialed number with "91". The translation pattern was created to strip the 91 as the PSTN expects a 10-digit number. The PSTN also requires the calling number to be set to 9195551234. However, the service provider has said calls with a different calling number are being received. How is this issue resolved?

  1. Change the partition of the translation pattern from none to pstn_pt.
  2. Disable Use Calling Party's External Phone Number Mask on the route pattern.
  3. Enable Force Authorization Code on the route pattern.
  4. Enable Use Calling Party's External Phone Number Mask on the translation pattern.

Answer(s): B



A single site reports that when they dial select numbers, the call connects, but they do not get audio. The administrator finds that the calls are not routing out of the normal gateway but out of another site's gateway due to a TEHO configuration.
What is the next step to diagnose and solve the issue?

  1. Verify that the route pattern has the correct calling-party transformation mask.
  2. Verify that IP routing is correct between the gateway and the IP phone.
  3. Verify that the dial peer of the gateway has the correct destination pattern configured.
  4. Verify that the route pattern is not blocking calls to the destination number.

Answer(s): C





Refer to the exhibit.
Which change to the translation rule is needed to strip only the leading 9 from the digit string 9123548?

  1. rule 1 /^9\(\d*\)/ /\l/
  2. rule 1 /^9\(.*\)/ /\l/
  3. rule 1 /.*\(3548$\)/ /\l/
  4. rule 1 /^9123548/ /\1/

Answer(s): B



An engineer set up and successfully tested a TEHO solution on the Cisco UCM. PSTN calls are routed correctly using the IP WAN as close to the final PSTN destination as possible. However, suddenly, calls start using the backup local gateway instead.
What is causing the issue?

  1. route pattern
  2. LAN connectivity
  3. WAN connectivity
  4. route list and route group

Answer(s): C



An administrator is trying to apply configuration changes on Cisco CME. When the users registered on Cisco CME to dial a local number to a PSTN call, the Cisco CME sends an incorrect number of digits.
What translation rule fixes the issue and sends the correct number of digits?

  1. voice translation-rule 1
    rule 1 // // type any subscriber plan any isdn
  2. voice translation-rule 1

    rule 1 /^4...$/ /2404\0/ type any national plan any isdn
  3. voice translation-rule 1
    rule 1 /^4...$/ /9132404\0/ type any subscriber plan any isdn
  4. voice translation-rule 1
    rule 1 /^4...$/ /2404\0/ type any subscriber plan any isdn

Answer(s): C



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