Cisco 300-815 Practice Exams
Last updated on Oct 22,2026- Exam Code: 300-815
- Exam Name: Implementing Cisco Advanced Call Control and Mobility Services (CLACCM)
- Certification Provider: Cisco
- Latest update: Oct 22,2026
A user requests a feature to send an active call to the mobile phone number on the physical phone.
As an administrator, what should be configured in the Cisco UCM to accomplish this?
- A . A Remote Destination Profile having the same extension as the Mobile phone’s number adds the physical phone’s Directory Number to the RDP as a Remote Destination. Add the softkey "Mobility"
to the physical phone’s softkey template. - B . A Remote Destination Profile having the same extension as the physical phone’s Directory Number, add the mobile phone number to the RDP as a Remote Destination. Add the softkey "Mobility" to the physical phone’s softkey template.
- C . A Remote Destination Profile having the same extension as the Mobile phone’s number adds the physical phone’s Directory Number to the RDP as a Remote Destination. Add the softkey "Join" to the physical phone’s softkey template
- D . A Remote Destination Profile having the same extension as the physical phone’s Directory Number, add the mobile phone number to the RDP as a Remote Destination. Add the softkey "Join" to the physical phone’s softkey template.
DRAG DROP
Drag and drop the commands from the bottom to the blanks in the code to implement a translation rule to allow only 11 digits to be received over a SIP trunk to a SIP provider. The Cisco UCM is currently sending calls to the Cisco Unified Border Element in E. 164 format. Not all options are used.


A support engineer is troubleshooting a voice network.
When conducting a search for call setup details related to calling search space issues, which trace files should be investigated?
- A . CallManager traces
- B . CTI Manager traces
- C . Cisco IP Manager Assistant
- D . Call logs
Refer to the exhibit.

A collaboration engineer is troubleshooting an issue where external callers cannot leave voicemail messages. Also, internal users report hearing the reorder tone (fast busy) when they attempt to retrieve voicemail messages from their Cisco IP phones.
Which action resolves the issue?
- A . Ensure that Cisco UCM can resolve the destination address via DNS.
- B . Start the Cisco Call Manager service at the destination.
- C . Ensure that the SIP Trunk Security Profile is configured to use UDP for transport.
- D . Verify that the correct port numbers are used for the SIP trunk.
Refer to the exhibit.

A no-way audio situation was experienced after the calling party on an outbound call placed the call on hold and then resumed from hold.
Which action will resolve the issue?
- A . Assign an MTP to the SIP trunk.
- B . Restart the SIP trunk on Cisco UCM.
- C . Upgrade the Cisco Unified Border Element to 15.2.
- D . Upgrade the Cisco Unified Border Element device.
An engineer is implementing survivability for a collaboration environment. The environment is utilizing a centralized Cisco UCM at the headquarters and Cisco IOS-XE gateways in the remote branches.
Which action must the engineer take to enable both shared lines and B-ACD for SIP branch phones during a WAN outage?
- A . Configure mode srst under telephony-service configuration mode.
- B . Configure mode esrst under telephony-service configuration mode.
- C . Configure mode esrst under voice register global configuration mode.
- D . Configure mode esrst under voice service voip configuration mode.
Refer to the exhibit.

Calls from users to the PSTN in an organization get disconnected with a 408 Request Timeout when the called party is unavailable to pick up the call.
Which solution must be used to resolve this challenge?
- A . Configure midcall-signaling preserve-codec.
- B . Choose "Send PRACK" if 1xx contains SDP in the SIP profile.
- C . Configure midcall-signaling passthru media-change
- D . Choose "Send PRACK for all 1xx Messages" in the SIP profile.
An administrator is configuring Meet-me conferencing in a Cisco UCM deployment and has created the Meet-me number and ensured that it is in a partition accessible by all devices.
Which two additional steps must the administrator perform? (Choose two.)
Update the softkey template on all phones to ensure that they contain the Meet-me softkey.
- A . Ensure that conferencing-initiating devices are using a media resource group list that contains at least one Cisco UCM conference bridge.
- B . Enable Meet-me conferencing In enterprise parameters.
- C . Ensure that all devices have G.729 enabled.
- D . Disable Early Media on the SIP profile of all devices that will use Meet-me conferencing.
Refer to the exhibit.

A Cisco Unified Border Element continues to send 180/183 with the required: 100rel header to Cisco UCM. and the call eventually disconnects.
How is the issue resolved?
- A . Enable ‘SIP ReI1XX Options* and -Early Offer Support" on the SIP Profile Configuration Page in Cisco UCM.
- B . Enable *Early Offer support for voice and video calls" on the SIP Profile Configuration Page in Cisco UCM.
- C . Disable "SIP Rel1XX Options* and ‘Early Offer Support* on the SIP Profile Configuration Page m Cisco UCM.
- D . Disable "Send send-receive SDP in mid-call INVITE* on the SIP Profile Configuration Page in Cisco UCM.
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?
- A . midcall-signallng passthru
- B . midcall-signaling preserve-codec
- C . no update-callerid
- D . midcall-signaling passthru media-change