Implementing and Operating Cisco Collaboration Core Technologies (CLCOR)

What the CLCOR exam is

The Implementing and Operating Cisco Collaboration Core Technologies exam, coded 350-801 CLCOR, tests whether you can build and run Cisco voice, video, and messaging environments across on premises, cloud, and hybrid deployments. It suits collaboration engineers, Cisco Unified Communications Manager administrators, and voice network specialists, especially those whose employers are moving calling to Webex. Passing it earns the Cisco Certified Specialist Collaboration Core credential.

Purpose and what it validates

CLCOR is the core exam in Cisco’s collaboration track. Cisco states that passing it earns the Specialist credential and also counts as the core exam requirement for both CCNP Collaboration and CCIE Collaboration. CCNP Collaboration requires two exams: this core exam plus one concentration exam of your choice. For CCIE Collaboration, CLCOR serves as the core exam on the way to the expert level.

The exam certifies practical knowledge of infrastructure and design, protocols and endpoints, Cisco IOS XE gateways and media resources, call control, quality of service, and collaboration applications. The v2.0 version took effect on February 3, 2026, and the last day to test on the previous version was February 2, 2026. Study material written before that date may not match the current blueprint.

Eligibility

Cisco’s exam page does not list formal prerequisites for CLCOR, so there is no mandatory course or earlier certification to unlock a booking. In practice the exam assumes you have worked with collaboration systems. Candidates who have never configured a dial plan or read a SIP trace tend to find the scenario questions difficult. Cisco offers an instructor led course called Implementing Cisco Collaboration Core Technologies to help candidates prepare, but taking it is optional.

Exam structure and format

The exam runs 120 minutes and is delivered in English according to Cisco’s listing. Cisco does not publish a fixed question count or a fixed passing score on its exam page. Question numbers are commonly reported in the 90 to 110 range, and you should treat that as an estimate only. Expect a mix of standard multiple choice items, drag and drop items, and scenario based questions where a diagram or configuration excerpt supports several questions. Because the passing score is not published, aim for strong coverage of every domain instead of targeting a percentage.

Domains and weighting

Cisco’s v2.0 exam topics document divides the exam into six areas. Cisco notes that related topics may appear on any specific delivery and that the guidelines can change without notice, so use the weights as a study allocation guide.

• Infrastructure and Design (15%). On premises, hybrid, and cloud design elements such as sizing, bandwidth, codecs, high availability, disaster recovery, dial plan, and security. It also covers the purpose of Expressway and Cisco Unified Border Element, the cluster upgrade process, and troubleshooting SSO, certificates, OAuth, TLS, DNS, NTP, LDAP, and DHCP.

• Protocols and Endpoints (10%). Deploying endpoints and soft clients through manual, self provisioning, bulk, and activation code methods, plus the Webex App. Troubleshooting covers SIP call setup, SDP, DTMF, hold, resume, transfer, and endpoint registration.

• On Premises Call Control (30%). The largest domain. It covers the call routing process, toll fraud prevention, and globalized call routing with route patterns, translation patterns, partitions, calling search spaces, forced authorization codes, and time of day routing. It also includes dial plan troubleshooting, UCM APIs, Cisco Unity Connection, and LDAP sync with role based access control.

• Voice Gateways and Session Border Controllers (10%). DTMF, voice translation rules, codec preference lists, VoIP and POTS dial peers, redundancy features, IOS XE dial plan troubleshooting, and media resources.

• Cloud and Hybrid Services (25%). Webex Suite, Webex Calling routing and toll fraud prevention, cloud meetings and messaging, cloud APIs and webhooks, Control Hub user management, Cloud Connected UC, and Webex Hybrid Services.

• Media and QoS (10%). Troubleshooting one way and choppy audio, QoS for signaling and media on wired and wireless networks, trust boundaries, and LLQ configuration.

Nearly a third of your preparation should go to call control, and the cloud domain deserves more time than veteran CUCM engineers often give it.

Registration

Cisco exams are scheduled through Cisco’s certification portal and delivered by its testing partner. Choices usually include a test center or an online proctored session, depending on your region. Because scheduling steps, ID rules, and delivery options change, start from Cisco’s official CLCOR page and follow the booking links there. The fee is US$400 or Cisco Learning Credits, and you should confirm the final price at checkout.

Recertification and career value

Cisco certifications are valid for three years, and recertification must be completed before the expiration date. You can recertify by passing an appropriate exam, earning a higher level certification, or using continuing education credits. CLCOR also counts toward recertification according to Cisco.

The credential is relevant to a specific set of roles: UC engineer, collaboration administrator, voice gateway and SBC specialist, and Webex Calling migration lead. Because v2.0 places a quarter of the exam on cloud and hybrid services, the certification signals that you can bridge a CUCM estate and a Webex deployment, which many organizations are currently doing.

Preparing with practice tests

Timed practice shows you how long scenario questions  take, and untimed practice shows you which domain needs work. The free practice tests on AllExamQuestions.com for CLCOR are organized around the exam’s topic areas, so you can find weak spots in dial plan logic, SIP, gateways, QoS, or Webex administration before your booking. Use them alongside Cisco’s official exam topics document and hands on lab time.