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
Refer to the exhibit.

A user dials 84969010 and observes that the call is not routed immediately. The administrator notices that after matching the fixed-length translation pattern, the call hits the +! pattern and waits for interdigit timeout.
What should be configured to ensure that the call routes out immediately?
- A . Allow Device Override on the route pattern
- B . Route Next Hop By Calling Party Number on the translation pattern
- C . Do Not Wait For Interdigit Timeout On Subsequent Hops on the translation pattern
- D . Do Not Wait For Interdigit Timeout On Subsequent Hops on the route pattern
Refer to the exhibit.

Which INVITE is sent to 10.10.100.123 as a result of this log?
A)

B)

C)

D)

- A . Option A
- B . Option B
- C . Option C
- D . Option D
End users at a new site report being unable to hear the remote party when calling or being called by users at headquarters. Calls to and from the PSTN work as expected.
To investigate the SIP signaling to troubleshoot the problem, which field can provide a hint for troubleshooting?
- A . Contact: header of the 200 OK response
- B . Allow: header if the 200 OK response
- C . o= line of SDP content
- D . c= line of SDP content
Which services are needed to successfully implement Cisco Extension Mobility in a standalone Cisco Unified Communications Manager server?
- A . Cisco Extended Functions, Cisco Extension Mobility, and Cisco AXL Web Service
- B . Cisco CallManager, Cisco TFTP, and Cisco CallManager SNMP Service
- C . Cisco CallManager, Cisco TFTP, and Cisco Extension Mobility
- D . Cisco TAPS Service, Cisco TFTP, and Cisco Extension Mobility
C
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_5_2/ccmfeat/CUCM_BK_C3A84B33_00_cucm-feature-configuration-guide_1052/CUCM_BK_C3A84B33_00_cucm-feature-configuration-guide_chapter_011101.html#CUCM_TK_A337E035_00
After configuring a Cisco CallManager Express with Cisco Unity Express, inbound calls from the PSTN SIP trunk receive a ring tone for 20 seconds and then a busy signal instead of voicemail.
Which configuration fixes this problem?
- A . Router(config)# voice service voip
Router(conf-voi-serv)#allow-connections h323 to h323 - B . Router(config)#dial-peer voice 2 voip
Router(config-dial-peer)#no vad - C . Router(config)# voice service voip
Router(conf-voi-serv)#allow-connections voice-mail mod - D . Router(config)# voice service voip
Router(conf-voi-serv)#no supplementary-service sip moved-temporarily
D
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cusrst/admin/sccp_sip_srst/configuration/guide/SCCP_and_SIP_SRST_Admin_Guide/srst_call_handling.html
Refer to the exhibit.

Users report that when they dial to Cisco Unity Connection from an external network, they cannot enter any digits.
Assuming only in-band DTMF is supported, what is a reason for this malfunction?
- A . The negotiated RTP port is outside of the range described by RFC, so inband DTMFs do not work.
- B . There is SIP Delayed Offer. DTMF is supported only in Early Offer.
- C . The rtpmap:0 value for the negotiated codec is marking DTMF as inactive.
- D . No DTMF is negotiated.
A customer routes PSTN calls to ITSP through a SIP trunk on Cisco UCM that forwards and receives calls to and from ITSP. ITSP is set to send an E.164 number when the customer’s extension is four digits.
Which action should be taken to route the incoming calls to four-digit extensions?
- A . Configure a voice translation rule to map the E.164 number to four digits and assign it to the incoming dial-peer on Cisco Unified Border Element.
- B . Set the Significant Digits to 4 on the SIP trunk.
- C . Configure a voice translation profile to map the E.164 number to four digits and assign it to the incoming dial-peer on Cisco Unified Border Element.
- D . Set the Significant Digits to 8 on the SIP trunk.
Refer to the exhibit.

A collaboration engineer is troubleshooting an issue where the PSTN calls of a Cisco UCM IP phone user are not reaching the PSTN gateway.
Which action resolves the issue?
- A . Deselect "Block this pattern" on the route pattern.
- B . Change the calling search space of The user’s line or device.
- C . Change the "Call Classification" to "OnNet" on the route pattern.
- D . Ensure that the user’s phone is assigned to a device pool with the correct local route group settings.
What are two functions of the metadata in SIP recording? (Choose two.)
- A . includes the details of the application media stream
- B . contains the cryptographic context of the SRTP passthrough calls
- C . identifies the session and media association time
- D . carries the Agent Statistics Report
- E . carries the communication session data (audio and video calls) that describes the call to the recording server
Where on Cisco Unified Communications Manager do you configure the standard local route group for a group of devices?
- A . System > Location Info
- B . Call Routing > Route/Hunt > Local Route Group Names
- C . System > Device Pool
- D . Call Routing > Emergency Location > Emergency Location (ELIN) Groups
B
Explanation:
Reference: https://www.uccollabing.com/configuring-standard-local-route-group-cucm/