CLCOR Voice Gateways And Session Border Controllers — All Questions With Answers

Question 1easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

What is the default dial-peer used if no other dial-peer matches a call on a Cisco IOS XE gateway?

Question 2hardmultiple choice

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A CUBE is rejecting calls because of a mismatch in supported DTMF methods. Which command forces CUBE to offer both RFC2833 and OOB DTMF?

Question 3mediummultiple choice

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A CUBE is experiencing media cut-off issues after 30 seconds. Which parameter in the dial-peer configuration is the most likely cause if the re-invite is not being processed correctly?

Question 4hardmultiple choice

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You are configuring CUBE for SIP-to-SIP header manipulation. You need to remove the Diversion header from outgoing INVITE requests. Which component is required to achieve this?

Question 5easymultiple choice

Review the full routing breakdown →

You are configuring a dial-peer to route calls to a PSTN gateway using SIP. Which command is required to enable the use of the SIP protocol on the dial-peer?

Question 6mediummultiple choice

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To allow a CUBE to handle calls for multiple tenants, which feature should be configured?

Question 7mediummultiple choice

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You are migrating from H.323 to SIP. Which command on the gateway ensures that H.323 is disabled for new calls?

Question 8easymultiple choice

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Which command displays the current status and statistics of all active calls on a Cisco voice gateway?

Question 9hardmultiple choice

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You are deploying CUBE and need to ensure secure media. Which protocol should you enable on the dial-peer?

Question 10hardmulti select

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Which THREE commands are used to configure a SIP profile in CUBE?

Question 11mediummulti select

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Which TWO of the following are required to successfully register a CUBE with a SIP provider?

Question 12mediummulti select

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Which TWO of the following are valid methods to troubleshoot SIP call failures on a CUBE?

Question 13mediummulti select

Open the full VLAN trunking answer →

Which THREE steps are required when configuring a new SIP trunk on a CUBE router?

Question 14hardmulti select

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Which THREE factors influence dial-peer matching for incoming calls on a Cisco IOS XE gateway?

Question 15hardmulti select

Open the full VLAN trunking answer →

A CUBE is deployed between Cisco Unified Communications Manager and an ITSP. The ITSP sends SIP OPTIONS pings to the CUBE, but the CUBE does not respond, causing the ITSP to mark the trunk as down. Which two configurations are required on the CUBE to respond to these OPTIONS requests? (Choose two.)

Question 16mediummultiple choice

Open the full VLAN trunking answer →

A Cisco CUBE (Cisco Unified Border Element) is configured to route calls between two SIP trunks. The administrator wants to limit the number of concurrent SIP-to-SIP calls traversing the CUBE to 100 to prevent oversubscription. Which command should be applied to the voice service voip configuration to enforce this limit?

Question 17hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A network engineer is configuring a Cisco IOS XE gateway to register with a SIP provider. The provider requires the gateway to send SIP REGISTER messages with a specific contact user parameter. The engineer has configured the registrar and credentials. Which additional command is needed under the SIP UA configuration to include a custom user parameter in the Contact header of outgoing REGISTER messages?

Question 18hardmultiple choice

Open the full VLAN trunking answer →

A Cisco Unified Border Element (CUBE) is configured to perform SIP-to-SIP interworking. Calls from the service provider arrive with the P-Asserted-Identity header, but the enterprise SIP trunk requires the From header to contain the calling number. You need to copy the P-Asserted-Identity value into the From header for outgoing INVITEs. Which SIP profile configuration achieves this?

Question 19hardmulti select

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A CUBE is deployed to interconnect a Cisco Unified Communications Manager cluster with a SIP service provider. The provider requires that all outbound calls use a specific SIP profile that includes early offer and session refresh. Which two configuration steps are required on the CUBE to ensure that outbound SIP INVITEs comply with these requirements? (Choose two.)

Question 20mediummulti select

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A Cisco IOS XE voice gateway is configured with two dial peers: dial-peer 1 (POTS) and dial-peer 2 (VoIP). Incoming calls from the PSTN are not matching dial-peer 1 as expected. Which two dial-peer configuration elements are used to match inbound POTS calls? (Choose two.)

Question 21hardmulti select

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A network engineer is configuring a Cisco CUBE to support early offer for SIP calls. Which two statements are true regarding early offer configuration on CUBE? (Choose two.)

Question 22mediummultiple choice

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You are configuring a Cisco IOS XE voice gateway to connect to a SIP provider. The provider requires that the gateway authenticate using SIP digest authentication for outbound calls. You have configured the credentials under sip-ua. Which additional command is needed to ensure that the gateway challenges incoming calls from the provider?

Question 23easymultiple choice

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A Cisco Unified Border Element (CUBE) is deployed between an enterprise Cisco Unified Communications Manager and an ITSP. The ITSP requires that all outbound calls use the SIP domain 'provider.com' in the From header. Which CUBE configuration ensures this requirement?

Question 24easymultiple choice

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A voice engineer is configuring a Cisco IOS XE gateway to register with a SIP provider. The provider requires that the gateway authenticate using credentials. Which command is used to specify the authentication username and password for the SIP registrar?

Question 25mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is configured for SIP-to-SIP interworking. The provider sends calls with the P-Asserted-Identity header containing the calling party number. You need to copy the number from the P-Asserted-Identity header into the From header for calls sent to Unified CM. Which configuration element should you use?

Question 26hardmultiple choice

Open the full VLAN trunking answer →

A Cisco Unified Border Element (CUBE) is experiencing one-way audio on calls between two SIP trunks. You have verified that the signaling is correct and both sides are using the same codec. Which CUBE feature should you check first to resolve the issue?

Question 27hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is configured to connect to a SIP provider that uses a non-standard SIP port (not 5060) for signaling. The CUBE must send outbound INVITEs to this provider on port 5080. Which configuration is required on the outbound dial-peer to achieve this?

Question 28hardmulti select

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A Cisco Unified Border Element (CUBE) is deployed between Cisco Unified Communications Manager and a SIP provider. The provider sends calls with the P-Early-Media header to indicate early media. You need to ensure that CUBE forwards the P-Early-Media header to Unified CM. Which two configuration steps are required? (Choose two.)

Question 29mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE voice gateway is configured with two dial peers: dial-peer 10 voip (destination-pattern 9T) and dial-peer 20 pots (destination-pattern 9T). An engineer wants calls matching 9T to be routed out the POTS dial peer only if the VoIP dial peer is unavailable. Which configuration change ensures this behavior?

Question 30hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed for SIP-to-SIP interworking between Cisco Unified Communications Manager (CUCM) and a SIP provider. The provider requires that all outbound calls include a specific custom header, X-Provider-ID, with a value of 12345. The CUBE must also remove any incoming X-Provider-ID header from the provider to prevent loops. Which two SIP profile configurations on CUBE achieve these requirements? (Choose two.)

Question 31easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

An engineer is configuring a Cisco IOS XE voice gateway to support a T1 PRI connection to the PSTN. The gateway must use the ISDN switch type for North America. Which command correctly configures the T1 controller for ISDN PRI?

Question 32easymultiple choice

Review the full routing breakdown →

You are deploying CUBE. Which command enables the CUBE functionality on the Cisco IOS XE router?

Question 33mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE gateway is failing to route calls because the dial-peer is not matching the incoming call. Which command helps you identify the dial-peer that matched the incoming call?

Question 34mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

When configuring CUBE for media flow-around, which command ensures the media goes directly between endpoints?

Question 35mediummultiple choice

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What is the primary function of a dial-peer destination-pattern?

Question 36hardmultiple choice

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When troubleshooting CUBE SIP normalization, which tool allows you to view the normalized SIP messages in real-time?

Question 37easymultiple choice

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Which component in CUBE is responsible for ensuring that the call session is terminated correctly?

Question 38mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You need to enforce a specific codec for calls traversing a CUBE. Where is the most appropriate place to apply this configuration?

Question 39hardmultiple choice

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A CUBE is receiving calls but rejecting them due to '488 Not Acceptable Here'. What is the most likely reason?

Question 40easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

Which command is used to configure the IP address or hostname of the destination device on a dial-peer?

Question 41mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

When configuring CUBE, why would you use a 'voice class uri' command?

Question 42hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is configured for H.450.3 call forwarding, but it is not working. What is the most likely cause?

Question 43mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

What is the result of applying 'voice translation-profile' to an incoming dial-peer?

Question 44mediummulti select

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Which TWO of the following are functions performed by the CUBE as a Session Border Controller?

Question 45easymulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are valid components of a Cisco IOS voice gateway configuration?

Question 46hardmulti select

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Which THREE actions are possible using SIP profiles on a CUBE?

Question 47mediummulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are true regarding the use of voice translation-rules?

Question 48mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE gateway is configured with two POTS dial peers that both match an inbound PSTN call on voice port 0/0/0. The first dial peer has preference 1 and destination pattern 9T; the second has preference 2 and destination pattern 9.... An engineer notices that calls are always routed using the second dial peer. What is the most likely explanation?

Question 49easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

An engineer needs to verify the current active calls on a Cisco IOS XE voice gateway and see details such as call legs, codecs, and durations. Which command should be used?

Question 50mediummultiple choice

Review the full routing breakdown →

You are configuring a Cisco IOS XE voice gateway to route inbound SIP calls to different dial peers based on the Request-URI domain. You want to match calls destined to 'example.com' to a specific dial peer. Which configuration element should you use to achieve this?

Question 51mediummultiple choice

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A Cisco IOS XE gateway is configured with a POTS dial-peer that forwards calls to a PRI interface. Users report that inbound PSTN calls are being rejected with a cause code indicating that all circuits are busy, even though the PRI shows no active calls. Which command should you use to verify that the POTS dial-peer is matching the inbound calls correctly?

Question 52mediummultiple choice

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You are configuring a Cisco IOS XE voice gateway to register with an ITSP over SIP. The provider requires registration to be refreshed every 60 seconds. You have already configured the registrar and credentials under sip-ua. Which command correctly sets the registration expiry timer to 60 seconds?

Question 53mediummultiple choice

Open the full VLAN trunking answer →

A Cisco CUBE is deployed to connect a Cisco Unified Communications Manager (CUCM) cluster to a service provider SIP trunk. The service provider requires that all outgoing SIP INVITE messages contain a specific custom header, X-Provider-ID, with a value of 'CUBE123'. Which CUBE configuration is required to insert this header into outgoing INVITEs?

Question 54hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed between Cisco Unified Communications Manager and a SIP provider. The provider sends an INVITE with a Diversion header containing the original called number. You need to strip the Diversion header before sending the INVITE to Unified CM. Which configuration element should you use?

Question 55mediummultiple choice

Review the full routing breakdown →

A CUBE is configured to route calls between Cisco Unified Communications Manager and a SIP provider. The provider sends calls with a '+1' prefix, but the internal dial plan expects calls without the '+'. Which CUBE feature should be used to strip the '+' from the incoming called number before extending the call to Unified CM?

Question 56mediummultiple choice

Open the full VLAN trunking answer →

A Cisco IOS XE voice gateway is configured with two POTS dial peers pointing to the same FXO port. Dial peer 10 matches destination pattern 911, and dial peer 20 matches destination pattern 9T. An inbound PSTN call arrives and is matched to a VoIP dial peer that forwards it to the gateway's FXO trunk. Which dial peer will the gateway use for the outbound POTS leg, and why?

Question 57hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element is deployed between Cisco Unified Communications Manager and a SIP provider. The provider requires that the gateway insert a Diversion header containing the original called number when a call is forwarded. The engineer plans to use a SIP profile to accomplish this. Which statement accurately describes the capability of SIP profiles in this scenario?

Question 58mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE voice gateway routes inbound PSTN calls to Cisco Unified Communications Manager. The gateway is configured with dial-peer voice 100 pots, which has no incoming called-number command, and dial-peer voice 200 voip, which points to the CUCM subscriber. An engineer needs the gateway to terminate incoming POTS calls on the POTS dial peer and match outbound calls to the VoIP dial peer based on the called number. Which command must be added to dial-peer voice 100 pots to ensure inbound calls are matched correctly?

Question 59hardmultiple choice

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A Cisco Unified Border Element (CUBE) is deployed between Cisco Unified Communications Manager (CUCM) and a SIP service provider. The provider sends an INVITE with a Diversion header containing a redirecting number. The CUBE must pass the redirecting number to CUCM in the History-Info header instead of the Diversion header. Which SIP profile configuration on CUBE accomplishes this?

Question 1easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

What is the default dial-peer used if no other dial-peer matches a call on a Cisco IOS XE gateway?

Question 2hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is rejecting calls because of a mismatch in supported DTMF methods. Which command forces CUBE to offer both RFC2833 and OOB DTMF?

Question 3mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is experiencing media cut-off issues after 30 seconds. Which parameter in the dial-peer configuration is the most likely cause if the re-invite is not being processed correctly?

Question 4hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You are configuring CUBE for SIP-to-SIP header manipulation. You need to remove the Diversion header from outgoing INVITE requests. Which component is required to achieve this?

Question 5easymultiple choice

Review the full routing breakdown →

You are configuring a dial-peer to route calls to a PSTN gateway using SIP. Which command is required to enable the use of the SIP protocol on the dial-peer?

Question 6mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

To allow a CUBE to handle calls for multiple tenants, which feature should be configured?

Question 7mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You are migrating from H.323 to SIP. Which command on the gateway ensures that H.323 is disabled for new calls?

Question 8easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

Which command displays the current status and statistics of all active calls on a Cisco voice gateway?

Question 9hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You are deploying CUBE and need to ensure secure media. Which protocol should you enable on the dial-peer?

Question 10hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which THREE commands are used to configure a SIP profile in CUBE?

Question 11mediummulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are required to successfully register a CUBE with a SIP provider?

Question 12mediummulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are valid methods to troubleshoot SIP call failures on a CUBE?

Question 13mediummulti select

Open the full VLAN trunking answer →

Which THREE steps are required when configuring a new SIP trunk on a CUBE router?

Question 14hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which THREE factors influence dial-peer matching for incoming calls on a Cisco IOS XE gateway?

Question 15hardmulti select

Open the full VLAN trunking answer →

A CUBE is deployed between Cisco Unified Communications Manager and an ITSP. The ITSP sends SIP OPTIONS pings to the CUBE, but the CUBE does not respond, causing the ITSP to mark the trunk as down. Which two configurations are required on the CUBE to respond to these OPTIONS requests? (Choose two.)

Question 16mediummultiple choice

Open the full VLAN trunking answer →

A Cisco CUBE (Cisco Unified Border Element) is configured to route calls between two SIP trunks. The administrator wants to limit the number of concurrent SIP-to-SIP calls traversing the CUBE to 100 to prevent oversubscription. Which command should be applied to the voice service voip configuration to enforce this limit?

Question 17hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A network engineer is configuring a Cisco IOS XE gateway to register with a SIP provider. The provider requires the gateway to send SIP REGISTER messages with a specific contact user parameter. The engineer has configured the registrar and credentials. Which additional command is needed under the SIP UA configuration to include a custom user parameter in the Contact header of outgoing REGISTER messages?

Question 18hardmultiple choice

Open the full VLAN trunking answer →

A Cisco Unified Border Element (CUBE) is configured to perform SIP-to-SIP interworking. Calls from the service provider arrive with the P-Asserted-Identity header, but the enterprise SIP trunk requires the From header to contain the calling number. You need to copy the P-Asserted-Identity value into the From header for outgoing INVITEs. Which SIP profile configuration achieves this?

Question 19hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is deployed to interconnect a Cisco Unified Communications Manager cluster with a SIP service provider. The provider requires that all outbound calls use a specific SIP profile that includes early offer and session refresh. Which two configuration steps are required on the CUBE to ensure that outbound SIP INVITEs comply with these requirements? (Choose two.)

Question 20mediummulti select

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco IOS XE voice gateway is configured with two dial peers: dial-peer 1 (POTS) and dial-peer 2 (VoIP). Incoming calls from the PSTN are not matching dial-peer 1 as expected. Which two dial-peer configuration elements are used to match inbound POTS calls? (Choose two.)

Question 21hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

A network engineer is configuring a Cisco CUBE to support early offer for SIP calls. Which two statements are true regarding early offer configuration on CUBE? (Choose two.)

Question 22mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You are configuring a Cisco IOS XE voice gateway to connect to a SIP provider. The provider requires that the gateway authenticate using SIP digest authentication for outbound calls. You have configured the credentials under sip-ua. Which additional command is needed to ensure that the gateway challenges incoming calls from the provider?

Question 23easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed between an enterprise Cisco Unified Communications Manager and an ITSP. The ITSP requires that all outbound calls use the SIP domain 'provider.com' in the From header. Which CUBE configuration ensures this requirement?

Question 24easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A voice engineer is configuring a Cisco IOS XE gateway to register with a SIP provider. The provider requires that the gateway authenticate using credentials. Which command is used to specify the authentication username and password for the SIP registrar?

Question 25mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is configured for SIP-to-SIP interworking. The provider sends calls with the P-Asserted-Identity header containing the calling party number. You need to copy the number from the P-Asserted-Identity header into the From header for calls sent to Unified CM. Which configuration element should you use?

Question 26hardmultiple choice

Open the full VLAN trunking answer →

A Cisco Unified Border Element (CUBE) is experiencing one-way audio on calls between two SIP trunks. You have verified that the signaling is correct and both sides are using the same codec. Which CUBE feature should you check first to resolve the issue?

Question 27hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is configured to connect to a SIP provider that uses a non-standard SIP port (not 5060) for signaling. The CUBE must send outbound INVITEs to this provider on port 5080. Which configuration is required on the outbound dial-peer to achieve this?

Question 28hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed between Cisco Unified Communications Manager and a SIP provider. The provider sends calls with the P-Early-Media header to indicate early media. You need to ensure that CUBE forwards the P-Early-Media header to Unified CM. Which two configuration steps are required? (Choose two.)

Question 29mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE voice gateway is configured with two dial peers: dial-peer 10 voip (destination-pattern 9T) and dial-peer 20 pots (destination-pattern 9T). An engineer wants calls matching 9T to be routed out the POTS dial peer only if the VoIP dial peer is unavailable. Which configuration change ensures this behavior?

Question 30hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed for SIP-to-SIP interworking between Cisco Unified Communications Manager (CUCM) and a SIP provider. The provider requires that all outbound calls include a specific custom header, X-Provider-ID, with a value of 12345. The CUBE must also remove any incoming X-Provider-ID header from the provider to prevent loops. Which two SIP profile configurations on CUBE achieve these requirements? (Choose two.)

Question 31easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

An engineer is configuring a Cisco IOS XE voice gateway to support a T1 PRI connection to the PSTN. The gateway must use the ISDN switch type for North America. Which command correctly configures the T1 controller for ISDN PRI?

Question 32easymultiple choice

Review the full routing breakdown →

You are deploying CUBE. Which command enables the CUBE functionality on the Cisco IOS XE router?

Question 33mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE gateway is failing to route calls because the dial-peer is not matching the incoming call. Which command helps you identify the dial-peer that matched the incoming call?

Question 34mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

When configuring CUBE for media flow-around, which command ensures the media goes directly between endpoints?

Question 35mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

What is the primary function of a dial-peer destination-pattern?

Question 36hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

When troubleshooting CUBE SIP normalization, which tool allows you to view the normalized SIP messages in real-time?

Question 37easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

Which component in CUBE is responsible for ensuring that the call session is terminated correctly?

Question 38mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You need to enforce a specific codec for calls traversing a CUBE. Where is the most appropriate place to apply this configuration?

Question 39hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is receiving calls but rejecting them due to '488 Not Acceptable Here'. What is the most likely reason?

Question 40easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

Which command is used to configure the IP address or hostname of the destination device on a dial-peer?

Question 41mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

When configuring CUBE, why would you use a 'voice class uri' command?

Question 42hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A CUBE is configured for H.450.3 call forwarding, but it is not working. What is the most likely cause?

Question 43mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

What is the result of applying 'voice translation-profile' to an incoming dial-peer?

Question 44mediummulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are functions performed by the CUBE as a Session Border Controller?

Question 45easymulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are valid components of a Cisco IOS voice gateway configuration?

Question 46hardmulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which THREE actions are possible using SIP profiles on a CUBE?

Question 47mediummulti select

Read the full Voice Gateways And Session Border Controllers explanation →

Which TWO of the following are true regarding the use of voice translation-rules?

Question 48mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE gateway is configured with two POTS dial peers that both match an inbound PSTN call on voice port 0/0/0. The first dial peer has preference 1 and destination pattern 9T; the second has preference 2 and destination pattern 9.... An engineer notices that calls are always routed using the second dial peer. What is the most likely explanation?

Question 49easymultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

An engineer needs to verify the current active calls on a Cisco IOS XE voice gateway and see details such as call legs, codecs, and durations. Which command should be used?

Question 50mediummultiple choice

Review the full routing breakdown →

You are configuring a Cisco IOS XE voice gateway to route inbound SIP calls to different dial peers based on the Request-URI domain. You want to match calls destined to 'example.com' to a specific dial peer. Which configuration element should you use to achieve this?

Question 51mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco IOS XE gateway is configured with a POTS dial-peer that forwards calls to a PRI interface. Users report that inbound PSTN calls are being rejected with a cause code indicating that all circuits are busy, even though the PRI shows no active calls. Which command should you use to verify that the POTS dial-peer is matching the inbound calls correctly?

Question 52mediummultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

You are configuring a Cisco IOS XE voice gateway to register with an ITSP over SIP. The provider requires registration to be refreshed every 60 seconds. You have already configured the registrar and credentials under sip-ua. Which command correctly sets the registration expiry timer to 60 seconds?

Question 53mediummultiple choice

Open the full VLAN trunking answer →

A Cisco CUBE is deployed to connect a Cisco Unified Communications Manager (CUCM) cluster to a service provider SIP trunk. The service provider requires that all outgoing SIP INVITE messages contain a specific custom header, X-Provider-ID, with a value of 'CUBE123'. Which CUBE configuration is required to insert this header into outgoing INVITEs?

Question 54hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed between Cisco Unified Communications Manager and a SIP provider. The provider sends an INVITE with a Diversion header containing the original called number. You need to strip the Diversion header before sending the INVITE to Unified CM. Which configuration element should you use?

Question 55mediummultiple choice

Review the full routing breakdown →

A CUBE is configured to route calls between Cisco Unified Communications Manager and a SIP provider. The provider sends calls with a '+1' prefix, but the internal dial plan expects calls without the '+'. Which CUBE feature should be used to strip the '+' from the incoming called number before extending the call to Unified CM?

Question 56mediummultiple choice

Open the full VLAN trunking answer →

A Cisco IOS XE voice gateway is configured with two POTS dial peers pointing to the same FXO port. Dial peer 10 matches destination pattern 911, and dial peer 20 matches destination pattern 9T. An inbound PSTN call arrives and is matched to a VoIP dial peer that forwards it to the gateway's FXO trunk. Which dial peer will the gateway use for the outbound POTS leg, and why?

Question 57hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element is deployed between Cisco Unified Communications Manager and a SIP provider. The provider requires that the gateway insert a Diversion header containing the original called number when a call is forwarded. The engineer plans to use a SIP profile to accomplish this. Which statement accurately describes the capability of SIP profiles in this scenario?

Question 58mediummultiple choice

Review the full routing breakdown →

A Cisco IOS XE voice gateway routes inbound PSTN calls to Cisco Unified Communications Manager. The gateway is configured with dial-peer voice 100 pots, which has no incoming called-number command, and dial-peer voice 200 voip, which points to the CUCM subscriber. An engineer needs the gateway to terminate incoming POTS calls on the POTS dial peer and match outbound calls to the VoIP dial peer based on the called number. Which command must be added to dial-peer voice 100 pots to ensure inbound calls are matched correctly?

Question 59hardmultiple choice

Read the full Voice Gateways And Session Border Controllers explanation →

A Cisco Unified Border Element (CUBE) is deployed between Cisco Unified Communications Manager (CUCM) and a SIP service provider. The provider sends an INVITE with a Diversion header containing a redirecting number. The CUBE must pass the redirecting number to CUCM in the History-Info header instead of the Diversion header. Which SIP profile configuration on CUBE accomplishes this?