300-815Updated 1d ago · Sep 4, 2026
300-815 CLACC: Implementing Cisco Advanced Call Control On-Premises
245 questions across 1 topics, with suggested answers, explanations where available, and imported community discussion. The first 24 questions are free to preview.
Topics
| # | Topic | Questions | Free |
|---|---|---|---|
| 1 | Advanced Call Control | 245 | 24 |
Preview
24 of 245 accessibleQuestion 1 · Advanced Call Control Open
What is the relationship among a partition, a time schedule, and a time period in Time-of-Day routing in Cisco Unified Communications Manager?
Answer: B
A partition has one associated time schedule (or no schedule), while a time schedule consists of one or more time periods that define when the partition is available for routing.
**Learn more:** [Cisco Unified CM System Configuration Guide, Release 15 — Configure Call Routing](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/15/systemConfig/cucm_b_system-configuration-guide-15/cucm_b_system-configuration-guide-14_chapter_010010.html)
Question 2 · Signaling and Media Protocols Open
An engineer needs to route every SIP call in the form `<user>@example.com` to the SIP trunk gateway `corporate.local`. Which two SIP route patterns can accomplish this? (Choose two.)
Answer: D, E
Cisco Unified CM routes SIP URIs by matching the host portion against configured SIP route patterns. `example.com` is an exact match for that host, while `*.*` matches a two-label domain such as `example.com`. Domain-route patterns permit domain characters and wildcards but not `@`; the user portion is not part of this match. [Cisco IPv6 Deployment Guide—SIP IPv6 Route Patterns](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/uc_system/IPv6/vtgs_b_ipv6-deployment-guide-for-cisco/vtgs_b_ipv6-deployment-guide-for-cisco_chapter_01001.html)
**Learn more:** [Cisco IPv6 Deployment Guide—SIP IPv6 Route Patterns](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/uc_system/IPv6/vtgs_b_ipv6-deployment-guide-for-cisco/vtgs_b_ipv6-deployment-guide-for-cisco_chapter_01001.html) · [Cisco Collaboration System SRND—Routing of SIP Requests in Unified CM](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab12/collab12/dialplan.pdf)
Question 3 · Signaling and Media Protocols Open
What could cause RTP traffic transmitted by the originating endpoint to not be received at the far endpoint?
Answer: A
The SDP `c=` field carries connection-address information for the media stream. If a deep packet-inspection device overwrites that information incorrectly in the signaling path, the originating endpoint can send RTP to an incorrect media destination, preventing receipt at the far endpoint.
**Learn more:** [RFC 4566: Session Description Protocol (SDP)](https://datatracker.ietf.org/doc/rfc4566/) · [RFC 3550: RTP: A Transport Protocol for Real-Time Applications](https://datatracker.ietf.org/doc/html/rfc3550)