Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI): Candidate Guide
The 300-820 CLCEI exam validated practical knowledge of Cisco collaboration cloud and edge technologies, with particular attention to Expressway, Mobile and Remote Access, Business-to-Business collaboration, and related Unified Communications integration. It served candidates pursuing CCNP Collaboration or the Cisco Certified Specialist - Collaboration Cloud & Edge Implementation certification. The immediate decision for a candidate is no longer how to schedule CLCEI: Cisco retired the exam, so this guide helps you understand its former scope, preserve useful study knowledge, and choose the current replacement path before investing in outdated preparation material.
Is 300-820 CLCEI still available?
No. Cisco retired 300-820 CLCEI, so it is not an exam you can now book for certification or recertification. Use its topics as historical technical guidance only and verify the current Cisco blueprint before choosing a replacement exam.
Cisco’s retired-exams page records the 300-820 CLCEI retirement on February 2, 2026, and lists 300-820 CLHCT as its replacement. Cisco’s CLCEI course page describes the exam as retired as of February 3, 2026. Because the official pages present those dates differently, the important operational conclusion is the same: CLCEI is no longer available.
Cisco states that retired exams are no longer available for certifying or recertifying. Certifications earned from retired exams remain valid until their individual expiration dates. That distinction matters if you already passed CLCEI: retirement does not by itself erase an existing certification, but it does prevent using the exam for a new result or recertification.
Candidates who find CLCEI practice tests, booking references, or study plans online should check whether the material describes the former exam or the current 300-820 CLHCT version. The exam number alone is not enough to establish that the content is current. Start with Cisco’s current exam page and exam topics rather than relying on an archived question bank.
What did the former exam validate?
The former CLCEI exam validated implementation-level understanding of Cisco collaboration cloud and edge solutions, including Cisco Unified IM and Presence, Expressway configurations, and Cisco Webex Teams hybrid and emerging technologies. Its emphasis was connecting collaboration services across network boundaries rather than studying isolated product terminology.
The associated certification context was significant. Cisco linked CLCEI to the CCNP Collaboration certification and the Cisco Certified Specialist - Collaboration Cloud & Edge Implementation certification. A candidate therefore needed more than a broad cloud overview: the former scope expected the ability to reason about configuration, integration, security, and troubleshooting decisions.
The former course objectives specifically included configuring and troubleshooting Cisco Unified Communications Manager and Cisco Expressway Series integration. They also included configuring and troubleshooting Business-to-Business collaboration solutions and describing Mobile and Remote Access security and integration options.
That scope favors engineers who work between collaboration applications and network infrastructure. It is relevant to people responsible for Expressway deployments, Unified Communications Manager integration, remote-user access, external calling, certificates, firewall policy, and call-flow diagnosis. It is less suitable as a general introduction to voice, video, or cloud computing without hands-on collaboration foundations.
Who was the exam designed for?
The former exam best matched collaboration engineers and administrators who needed to connect on-premises Cisco collaboration services with external, remote, or cloud-facing users. It also suited CCNP Collaboration candidates selecting the cloud-and-edge concentration and specialists responsible for secure collaboration reachability.
A useful audience test is the work you perform. If your responsibilities included Expressway Series, Unified Communications Manager integration, Business-to-Business calling, Mobile and Remote Access, or collaboration security at the network edge, the former blueprint was close to your daily decisions. If your work was limited to endpoint provisioning or basic user administration, the blueprint would have required deliberate expansion of your skills.
The former CLCEI course covered Expressway Series solutions for Business-to-Business calls, Mobile and Remote Access, authentication options, and additional Expressway features. This indicates that the subject was not simply “cloud collaboration”; it involved the controls and dependencies that make cross-boundary communication function reliably.
For a current learner, separate two goals before studying. A person maintaining an existing CLCEI-related certification needs to check the certification record and current recertification options. A person seeking a new credential should study the current replacement blueprint, using former CLCEI topics only where they clearly overlap with current objectives.
Which former domains carried the most weight?
Cisco’s former exam-topic guide assigned 25% to key concepts, 25% to initial Expressway configurations, and 25% to Mobile and Remote Access. The guide did not provide a complete set of percentage labels in the supplied evidence, so do not infer the remaining weighting or treat the three values as a full ranking.
The 25% key concepts domain covered foundational mechanisms that explain why an edge deployment behaves as it does. Cisco listed NAT complications, ICE, TURN, STUN, Expressway media traversal, protocol interworking, licensing, SIP media-encryption modes, dial-plan elements, and backup and restore procedures.
The 25% initial Expressway configurations domain focused on implementation details. Cisco listed Expressway DNS, network interfaces, certificates, QoS, clustering, firewall rules, dial-plan elements, toll-fraud prevention, and Business-to-Business collaboration solutions.
The 25% Mobile and Remote Access domain should be studied as an integrated access design rather than a collection of menus. Connect authentication, traversal, certificates, firewall placement, media behavior, and user access into one call-flow model. This approach is more useful than memorizing isolated configuration labels.
Do not compare the three 25% figures as if one topic were more important than another; Cisco labels each of them as a separate exam domain. Instead, use the labels to allocate study attention and then confirm the full, current blueprint from Cisco before preparing for a replacement exam.
How should you study Expressway fundamentals?
Build a call-flow explanation before attempting detailed configuration. You should be able to describe where signaling travels, where media travels, how network translation affects reachability, which certificates are checked, and how Expressway components interact with Unified Communications Manager or external collaboration peers.
Start with the former key-concepts domain. Draw separate signaling and media paths, then mark the effects of NAT, STUN, TURN, and ICE. Explain what problem each mechanism addresses instead of learning the acronyms as interchangeable features. For every path, identify the expected direction of traffic and the boundary where a firewall or traversal service intervenes.
Next, study protocol interworking and SIP media-encryption modes. The useful question is not merely which option exists; it is how a selected mode affects interoperability, endpoint expectations, and troubleshooting evidence. Pair each concept with a hypothetical symptom, such as signaling success with media failure, or an external call that fails after certificate validation.
Include licensing and backup and restore in the same foundation pass. These subjects are easy to postpone because they appear less visible than call routing, but they affect deployment readiness and operational recovery. Write a short runbook that names the configuration or service dependency, the evidence you would collect, and the safe recovery decision.
Avoid studying NAT, ICE, TURN, and STUN as a vocabulary list. A candidate who can define each term but cannot place it in a media path will struggle with scenario-based reasoning. Use diagrams, packet-flow notes, and controlled configuration exercises where permitted by your lab environment.
How should you sequence Expressway configuration practice?
Practice in dependency order: name resolution and interfaces first, certificates and security next, traversal and firewall behavior after that, and dial-plan and collaboration integration last. This sequence reduces the risk of troubleshooting an application symptom that was caused by a lower-level reachability or trust problem.
Begin with DNS and network interfaces because later services depend on predictable identity and connectivity. Record the names used by each system, the interfaces and zones involved, and the traffic direction expected between internal and external components. Then review how a configuration change could alter certificate identity, firewall rules, or routing.
Move to certificates before practicing remote access or Business-to-Business calls. Build a checklist covering identity, trust, expiry, and the certificate relationships required by the relevant systems. Do not treat a certificate warning as a minor browser issue; in a collaboration deployment, trust failure can prevent registration, traversal, or call establishment.
Practice QoS, clustering, and firewall rules as design decisions. For QoS, identify which traffic requires treatment and where policy is applied. For clustering, consider service continuity and configuration consistency. For firewall rules, document the permitted path and its purpose rather than opening broad access without a defined call flow.
Finish with dial-plan elements, toll-fraud prevention, and Business-to-Business collaboration. Test your reasoning with “what changed?” scenarios: a new external domain, a modified route, a certificate replacement, a firewall adjustment, or an unexpected calling pattern. The goal is to connect a symptom to a controlled diagnostic sequence, not to reproduce a memorized answer.
What should a Mobile and Remote Access study plan include?
Treat Mobile and Remote Access as a security-and-integration workflow. Your study plan should connect user authentication, Expressway traversal, certificates, firewall boundaries, Unified Communications Manager integration, and media behavior. A remote user experience depends on all of those relationships, so learning each feature in isolation leaves important gaps.
First map the user journey from an external network to collaboration services. Identify the discovery or access stage, the authentication decision, the internal service reached, and the point at which media is established. Then list what would be different for an on-premises user, a remote user, and a Business-to-Business call.
Use the former course objective of describing Mobile and Remote Access security and integration options as a prompt for comparison. For each option in the official material you use, write its purpose, dependencies, trust requirements, and likely failure symptom. This creates a compact reference that explains decisions instead of copying interface text.
Include authentication choices in your review. Ask which system is authoritative, what trust relationship is required, and what evidence would distinguish invalid credentials from a traversal, DNS, certificate, or firewall problem. This prevents the common mistake of treating every remote-access failure as an authentication issue.
Finish with a security review. Check whether the proposed design limits exposure, protects administrative access, controls calling routes, and reduces toll-fraud risk. Cisco’s former topic guide explicitly included toll-fraud prevention, so security should be part of the implementation exercise rather than an afterthought.
How can you turn the blueprint into hands-on practice?
Use a repeatable lab cycle: design the path, configure the smallest change, verify signaling and media separately, record evidence, and restore the baseline. This method develops troubleshooting judgment while avoiding dependence on live exam questions or unverifiable practice material.
Create one worksheet for each lab. Record the intended call flow, DNS names, interfaces, certificates, firewall assumptions, dial-plan behavior, and expected result. After testing, record the observed result and the first failed dependency. The worksheet becomes more valuable when it captures why a change worked or failed.
A useful sequence is to begin with a simple internal integration, then add an external or remote path, then introduce one controlled complication. Possible complications include a name-resolution error, certificate mismatch, blocked firewall path, NAT behavior, incorrect route, or media-encryption incompatibility. Change one variable at a time so that the evidence remains interpretable.
When a lab is unavailable, substitute design analysis rather than pretending a diagram proves operational skill. Read the official course objectives and topic guide, draw the topology, identify dependencies, and predict diagnostic evidence. Mark conclusions as expected behavior until you can confirm them in Cisco documentation or an authorized environment.
Do not use exam dumps as a substitute for implementation practice. Leaked or recycled questions can be inaccurate, outdated, or unrelated to the current replacement exam, and memorization does not establish that you can configure or troubleshoot a collaboration edge.
What did the former delivery format look like?
The former CLCEI exam was listed with a 90-minute duration and English as its available language. Those details describe the retired exam and should not be transferred to 300-820 CLHCT or another current Cisco assessment without checking the current official exam page.
The associated Cisco course included lessons and hands-on labs and was designed as five days of instructor-led classroom training or equivalent e-learning. That is a training-course format, not evidence that every candidate needed five days or that completing the course guaranteed exam readiness.
The course’s lab emphasis supports a practical preparation choice: prioritize configuration dependencies and fault isolation over passive reading. If you select formal training for a current exam, confirm that its objectives and version match the current blueprint. Archived CLCEI course material can explain former Expressway and integration concepts, but it cannot establish current exam coverage.
Cisco stated that the former CLCEI course earned 40 Continuing Education credits toward recertification. Treat that as a former course-specific claim, not as a general benefit of studying CLCEI material or taking a replacement exam. Confirm any current Continuing Education policy directly with Cisco.
What is a practical legacy-study roadmap?
If you are using CLCEI material to build transferable collaboration knowledge, study it in four passes: scope and architecture, key mechanisms, configuration dependencies, and troubleshooting. If your goal is a new certification, insert a current-blueprint check before each pass and replace topics that no longer appear.
Pass one: establish the architecture. Identify Unified Communications Manager, Expressway roles, remote-access boundaries, Business-to-Business paths, authentication services, and cloud-facing integration points. Produce one diagram with signaling and media shown separately. Do not move on until you can explain each trust and routing dependency in plain language.
Pass two: work through the former key-concepts domain. Cover NAT complications, ICE, TURN, STUN, media traversal, protocol interworking, licensing, SIP media encryption, dial-plan elements, and backup and restore. For every item, write one purpose statement and one failure symptom. This turns terminology into diagnostic knowledge.
Pass three: practice configuration dependencies. Review DNS, interfaces, certificates, QoS, clustering, firewall rules, dial-plan elements, toll-fraud controls, and Business-to-Business solutions. Use a change-control format: objective, prerequisite, change, verification, rollback. This is especially useful for candidates who understand theory but lack operational sequencing.
Pass four: troubleshoot from symptoms. Start with the narrowest failed stage: discovery, authentication, signaling, media negotiation, media traversal, or dial-plan routing. Gather evidence before changing settings. Then validate the fix and document the side effects. For current certification preparation, compare your resulting checklist with the current 300-820 CLHCT topics rather than assuming the legacy roadmap is sufficient.
Which preparation mistakes should you avoid?
The largest mistake is preparing to schedule a retired exam. Confirm exam status first, then identify the current replacement and version. A detailed study plan built around archived CLCEI objectives can still teach useful skills, but it cannot substitute for the current exam blueprint.
Another mistake is treating the blueprint percentages as a complete study timetable. Cisco’s former guide labels 25% for key concepts, 25% for initial Expressway configurations, and 25% for Mobile and Remote Access, but the supplied evidence does not identify the full set of domain weights. Use those labels as direction, not as permission to ignore unlisted content.
Do not collapse signaling, media, and security into one troubleshooting category. A call can progress through one stage and fail at another. Keep separate notes for DNS and reachability, certificate trust, signaling, media negotiation, traversal, and dial-plan behavior. This makes your next diagnostic action specific.
Do not memorize configuration screens without understanding prerequisites. DNS, certificates, firewall rules, interfaces, licensing, and route design can determine whether a later setting has any effect. When reviewing a feature, ask what must already be true for it to work and what evidence would prove that prerequisite.
Finally, do not assume that a former CLCEI course, a third-party question bank, or a blog summary reflects the current exam. Use Cisco’s official exam topics and replacement information as the authority, and label archived material as historical whenever you retain it for technical study.
What should you do next?
If you planned to take 300-820 CLCEI, stop the booking process and confirm the current Cisco replacement, 300-820 CLHCT, through Cisco’s official certification resources. Download the current exam topics, check the version and eligibility requirements shown there, and rebuild your study plan around the current objectives.
If you already earned CLCEI, check your Cisco certification record and expiration date. Cisco says certifications earned from retired exams remain valid until their individual expiration dates, but the retired exam itself cannot be used for recertifying. Select a current recertification route based on your status and Cisco’s present rules.
If you are an administrator with an existing Expressway or hybrid collaboration environment, keep the former CLCEI topics as a skills checklist. Review DNS, interfaces, certificates, firewall policy, traversal, media encryption, authentication, dial plans, toll-fraud controls, clustering, and backup and restore. Then validate each item against the versions and products in your actual environment.
If you are starting a new certification plan, use the former exam only to identify transferable foundations. Compare them with 300-820 CLHCT’s official blueprint, identify gaps, and schedule study time for current objectives. Do not use the retired exam’s 90-minute duration, English-language listing, former domain weights, or course format as assumptions about the replacement.
The most reliable next action is a source check: open Cisco’s retired-exams page, the current exam overview, and the current exam-topic document before buying training or practice material. That small verification step prevents an otherwise well-organized plan from targeting the wrong assessment.
Conclusion
300-820 CLCEI remains useful as a record of Cisco’s former cloud-and-edge collaboration skill set, especially Expressway integration, Mobile and Remote Access, Business-to-Business collaboration, security, and troubleshooting. It is not a current scheduling option. Use the archived objectives to strengthen transferable implementation knowledge, then make the certification decision from Cisco’s current 300-820 CLHCT information, versioned topics, and recertification guidance.
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- 300-835 exam — Automating Cisco Collaboration Solutions (CLAUTO)
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