642-457 試験問題を無料オンラインアクセス

The relationship between a Region and a Location is that the Region codec parameter is combined with Location bandwidth when communicating with other Regions.

• A.TRUE
• B.FALSE

Refer to the exhibit.

Assuming the regions configuration to BR only permits G.729 codec, how many calls are allowed for the BR location?

• A.Total of four calls in either direction.
• B.Total of two calls in either direction.
• C.Total of four calls; two incoming and two outgoing.
• D.Total of four calls to the BR location. Outgoing calls are not impacted by the location configuration.
• E.Two outgoing calls. Incoming calls are unlimited.

Which action configures CAC utilizing only Cisco Unified Communications Manager software?

• A.Configure Cisco Unified Communications Manager regions.
• B.Configure Cisco Unified Communications Manager locations.
• C.Configure Cisco Unified Communications Manager RSVP-enabled locations.
• D.Configure Cisco Unified Communications Manager MTPs.

Refer to the exhibit.
HQ_MRGL is assigned to the HQ IP phones. BR_MRGL is assigned to the BR IP phones. The remote site BR IP phones support only the G.711 codec. Where should the transcoder reside?

• A.A transcoder is not needed. The HQ phones will automatically change over to the G.711 codec.
• B.The transcoder should reside at the HQ site and assigned to HQ_MRG.
• C.The transcoder should be assigned to its own MRG, which should then be assigned to the default device pool.
• D.The transcoder should reside at the BR site and assigned to BR_MRG.

In a Centralized Call processing architecture, you have deployed Extension Mobility (EM) feature. After the deployment of EM, when one of the end-users tries to login to the IP phone, the Error 25 is displayed on the screen. What three things should you do to resolve this issue? (Choose three.)

• A.upgrade the firmware of the IP Phone to the latest version
• B.subscribe device profile to EM phone service in case the enterprise subscription of EM Service is disabled
• C.subscribe the MAC address of the IP Phone to EM Service
• D.activate EM feature service under Cisco Unified Serviceability
• E.update EM Phone Service URL to point to the publisher
• F.associate EM Device profile with the end-user