CLCOR ON Premises Call Control Practice Test 5 — 15 Questions

Question 1

You are migrating to a new SIP provider. You have a requirement to use 'Early Offer' for all calls on this trunk. Where is this configured?

Accepted Answer

SIP Profile. The SIP Profile assigned to the SIP trunk is where you can toggle Early Offer/Delayed Offer settings.

Answer

SIP Trunk Security Profile

Answer

Device Pool

Answer

Route List

Question 2

Which field in a Route Pattern can be used to discard the first few digits of a dialed number before routing?

Accepted Answer

Discard Digits. The 'Discard Digits' field in the Route Pattern or Translation Pattern configuration allows you to strip prefix digits.

Answer

Calling Search Space

Answer

Called Party Transform Mask

Answer

Route Filter

Question 3

A user reports that they cannot hold an active call when the Media Resource Group List (MRGL) is configured with a specific Transcoder. The CUCM trace shows 'Allocation Failure'. What is the most likely cause?

Accepted Answer

The MRG associated with the MRGL lacks the required Transcoder resource for the codec mismatch.. Allocation failure usually indicates that the hardware transcoder resource is exhausted or unreachable, requiring a check of the MRGL priority and resource availability.

Answer

The CUCM version does not support hardware transcoders.

Answer

The Transcoder device is registered but the MRGL priority is set to 0.

Answer

The device is using G.711 which requires a transcoder by default.

Question 4

When configuring a Device Pool in CUCM, which parameter is responsible for defining the set of codecs used between devices in different regions?

Accepted Answer

Region. The Location and Region settings within a Device Pool define the bandwidth and codec policies between endpoints.

Answer

Calling Search Space

Answer

Date/Time Group

Answer

Location

Question 5

You are troubleshooting a scenario where internal calls between two sites are failing. The call fails immediately when dialed. What is the most effective way to verify that the Calling Search Space (CSS) has access to the destination partition?

Accepted Answer

Use the Dialed Number Analyzer (DNA) tool.. The 'Dialed Number Analyzer' (DNA) tool in CUCM is designed specifically to trace the call routing logic based on CSS and partitions.

Answer

Check the 'Route Filter' list.

Answer

Use the 'Route Pattern' report in Cisco Unified Reporting.

Answer

Reset the SIP trunk.

Question 6

You need to implement redundancy for a remote site using Survivable Remote Site Telephony (SRST). Which parameter in the Device Pool ensures that the phones fail over to the local router during a CUCM WAN outage?

Accepted Answer

SRST Reference. The 'SRST Reference' in the Device Pool points the IP phones to the local voice gateway to act as a backup call controller.

Answer

AAR Calling Search Space

Answer

Cisco Unified CM Group

Answer

Network Locale

Question 7

Which CUCM service must be activated in Serviceability to allow for the use of the 'Cisco Extension Mobility' feature?

Accepted Answer

Cisco Extension Mobility. The 'Cisco Extension Mobility' service must be activated in the 'Cisco Unified Serviceability' under 'Tools -> Service Activation'.

Answer

Cisco DB Replicator

Answer

Cisco TFTP

Answer

Cisco CallManager

Question 8

You are implementing a 'Call Hunt' sequence. You want to ensure that if no agent answers within 20 seconds, the call moves to the next member in the list. Which configuration object manages this timer?

Accepted Answer

Line Group. The 'Line Group' configuration allows you to set the 'No Answer Ring Duration' which dictates how long a phone rings before the call is routed to the next member.

Answer

Hunt List

Answer

Route Group

Answer

Hunt Pilot

Question 9

Which CUCM feature allows an administrator to automatically register new phones using a pre-defined device template?

Accepted Answer

Auto-Registration. 'Auto-Registration' allows phones to join the cluster without manual configuration if the 'Auto-Registration' range is configured in the CUCM system parameters.

Answer

Device Provisioning

Answer

Extension Mobility

Answer

Bulk Administration Tool (BAT)

Question 10

An administrator needs to restrict a group of phones from making long-distance calls. Which component of the CUCM dial plan should be modified to achieve this while maintaining internal dialing?

Accepted Answer

Calling Search Space. Partition and Calling Search Space (CSS) configuration is the primary method to restrict access to specific route patterns by assigning them to different partitions.

Answer

SIP Trunk

Answer

Region

Answer

Device Pool

Question 11

What is the default behavior of CUCM when a phone is moved to a new site and registers with the local CUCM node, but the Device Pool is not updated?

Accepted Answer

The phone registers but keeps old Region/Location settings.. If the device pool is not updated, the phone will continue to use its original Region and Location settings, potentially causing media issues if it crosses a WAN link.

Answer

The phone refuses to register.

Answer

The phone forces a factory reset.

Answer

The phone defaults to the 'Default' device pool.

Question 12

You are configuring a 'Route List'. If all the 'Route Groups' within the list are busy, what is the default behavior of the CUCM call routing engine?

Accepted Answer

The call is dropped immediately.. By default, if all gateways/trunks are busy, the call is rejected with a busy tone (or fast busy), unless 'Route Next Hop' or 'AAR' is configured.

Answer

The call is sent to the primary gateway again.

Answer

The call is queued.

Answer

The call is forwarded to the PSTN.

Question 13

Which protocol is used by IP phones to register with the Cisco Unified Communications Manager?

Accepted Answer

SCCP or SIP. Cisco IP phones use SCCP (Skinny) or SIP to communicate and register with CUCM.

Answer

RTCP

Answer

MGCP

Answer

H.323

Question 14

You have implemented 'Local Route Group' in your dial plan. What is the main advantage of using this instead of static Route Groups?

Accepted Answer

It simplifies the dial plan by removing the need for location-specific route patterns.. Local Route Groups decouple the dial plan from the specific gateway, allowing the same route pattern to route via different local gateways based on the device's Device Pool.

Answer

It forces the use of G.729.

Answer

It requires less CPU on the CUCM.

Answer

It allows faster call setup.

Question 15

Which menu path in CUCM Administration is used to configure the 'Cisco Unified Communications Manager Group'?

Accepted Answer

System -> Cisco Unified Communications Manager Group. The CM Group is found under 'System -> Cisco Unified Communications Manager Group'.

Answer

Serviceability -> CM Group

Answer

Device -> Device Settings -> CM Group

Answer

Advanced Features -> CM Group