300-820
Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI)
Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI): Candidate Guide
The 300-820 CLCEI validated skills for implementing Cisco collaboration cloud and edge solutions, including Expressway, Unified IM and Presence, hybrid collaboration, and Mobile and Remote Access. It served professionals working with Cisco collaboration environments and was associated with the CCNP Collaboration and Cisco Certified Specialist - Collaboration Cloud & Edge Implementation certifications. This guide’s most important decision is whether you are researching the former exam for an existing credential or choosing the current replacement, because CLCEI is no longer available for certification or recertification.
Is 300-820 CLCEI still available?
No. Cisco retired 300-820 CLCEI on February 2, 2026, and lists 300-820 CLHCT as its replacement. A retired Cisco exam is no longer available for certifying or recertifying, although a certification earned through it remains valid until that certification’s individual expiration date.
That changes the correct preparation decision. Do not schedule a CLCEI attempt or build a current certification plan around its former blueprint. If you already earned a credential that used CLCEI, check its expiration and recertification position through Cisco. If you intended to test after the retirement date, move your research to the current 300-820 CLHCT information rather than treating old CLCEI materials as current requirements.
The retirement date is easy to confuse with the transition announced for Cisco’s collaboration exams. Cisco identified February 2, 2026 as the last day for the previous v1.2 topics and February 3, 2026 as the first day for v2.0 topics. Those dates describe the changeover; they do not create a later opportunity to take CLCEI.
What did the former exam validate?
The former CLCEI exam tested implementation knowledge across collaboration cloud and edge solutions, Cisco Unified IM and Presence, Expressway configurations, and Cisco Webex Teams hybrid and emerging technologies. Its practical center was the relationship between on-premises collaboration systems, Expressway-based edge services, remote access, and external collaboration.
Cisco’s former overview associated 300-820 CLCEI with the CCNP Collaboration and Cisco Certified Specialist - Collaboration Cloud & Edge Implementation certifications. That makes the exam relevant to candidates who were building a concentration-based CCNP Collaboration path as well as professionals seeking a specialist credential focused on cloud and edge implementation.
The associated work was not limited to selecting product features. The former course objectives included configuring and troubleshooting Cisco Unified Communications Manager and Cisco Expressway Series integration, configuring and troubleshooting Business-to-Business collaboration solutions, and describing Mobile and Remote Access security and integration options. A sound study approach therefore had to connect configuration choices with traffic flow, authentication, security, and fault isolation.
Who was the exam designed for?
CLCEI was most appropriate for collaboration engineers and administrators responsible for Cisco Unified Communications Manager, Expressway Series, remote access, and Business-to-Business collaboration. It also suited candidates whose CCNP Collaboration plan required the former cloud and edge concentration. The evidence supports a technical implementation audience rather than a general cloud-technology audience.
A candidate with only broad familiarity with collaboration terminology would have faced a steep practical gap. The former objectives expected work involving Unified Communications Manager and Expressway integration, while the topic guide included DNS, certificates, firewall rules, clustering, dial plans, media traversal, and security controls. Those areas reward configuration reasoning more than passive product recognition.
Use your intended outcome to classify your research. If you need to understand a previously earned certification, the former overview and topic guide explain what CLCEI covered. If you need a current Cisco collaboration credential, the retirement information and current replacement listing should control your next step. Do not assume that an old course title or practice test represents the replacement exam.
Which former domains carried the most weight?
Cisco’s former exam-topic guide allocated 25% to the Key Concepts domain, 25% to the Initial Expressway Configurations domain, and 25% to the Mobile and Remote Access domain. The supplied official material does not establish the remaining domain’s percentage, so the three published allocations should not be treated as a complete 100% breakdown.
The Key Concepts domain included NAT complications, ICE, TURN, STUN, Expressway media traversal, protocol interworking, licensing, SIP media-encryption modes, dial-plan elements, and backup and restore procedures. Study these as connected mechanisms: a remote media problem may involve NAT behavior and traversal services, while a call-routing issue may instead originate in dial-plan logic or protocol interworking.
The Initial Expressway Configurations domain included Expressway DNS, network interfaces, certificates, QoS, clustering, firewall rules, dial-plan elements, toll-fraud prevention, and Business-to-Business collaboration solutions. Organize notes by implementation dependency. DNS and interfaces affect reachability; certificates and firewall policy affect trust and permitted flows; dial-plan and fraud-prevention controls affect which calls are accepted and where they are sent.
The Mobile and Remote Access domain should be studied as an end-to-end access path, not as an isolated feature list. The official objectives connected Mobile and Remote Access with security and integration options, while the topic guide supplied overlapping areas such as traversal, authentication-related behavior, certificates, firewall rules, and Expressway configuration.
How should the former topic list be turned into study work?
Convert every topic into a small explanation, configuration dependency, and troubleshooting question. For example, do not stop at defining TURN. Explain the type of traversal problem it addresses, identify the components involved, and state what evidence would distinguish a traversal failure from a DNS, certificate, firewall, or dial-plan failure.
A useful worksheet can contain four columns: feature or protocol, expected traffic or relationship, security and configuration dependency, and failure symptom. Populate it for NAT, ICE, TURN, STUN, media traversal, SIP media encryption, protocol interworking, certificates, clustering, backup and restore, and toll-fraud prevention. This forces you to reason across the blueprint rather than memorize disconnected terms.
For Expressway configuration, write a dependency sequence before reviewing detailed commands. A practical sequence is to establish the network and name-resolution assumptions, map interfaces and firewall paths, define trust and certificate requirements, plan clustering and QoS considerations, then model dial-plan and Business-to-Business behavior. This is a preparation method, not an official Cisco configuration order.
Treat duplicate topics as deliberate reinforcement. Dial-plan elements appeared in both the former Key Concepts and Initial Expressway Configurations material. Instead of studying the term twice, study it from two angles: what the element means and how it participates in an Expressway implementation. The same principle applies to certificates, traversal, and security.
What to practise when no live lab is available
Use diagrams and controlled troubleshooting scenarios rather than claiming access to exam questions. Draw the Unified Communications Manager, Expressway components, remote client or external organization, DNS services, firewall boundaries, and media paths. Then annotate signaling, media, trust relationships, and the point at which NAT or traversal behavior matters.
For each diagram, remove one dependency and predict the result. Examples include an incorrect DNS record, an untrusted certificate, a blocked firewall path, an incomplete dial plan, an unavailable traversal service, or a mismatch in media-encryption expectations. The goal is to explain the diagnostic path, not to guess a memorized answer.
If you have access to an authorized training environment, reproduce the former course’s emphasis on lessons and hands-on labs. Cisco described the course as including lessons and hands-on labs and as designed for five days of instructor-led classroom training or equivalent e-learning. That describes the course format, not a requirement to pass the former exam.
How to check whether knowledge is durable
Close the notes and explain a complete call or remote-access flow aloud using precise component names. Then answer three questions: what must resolve, what must be trusted, and what must be allowed? Follow with a fourth question about where media travels. If the explanation collapses into product labels, return to the diagram and dependency worksheet.
Use a second pass for exceptions. Ask how NAT changes the path, how traversal services support media, how protocol interworking affects compatibility, and how security controls alter the outcome. For configuration topics, explain why the setting exists before attempting to recall its interface or syntax.
A strong review session ends with a fault-isolation decision tree. Start with scope: one user, one route, one external organization, or a broad service issue. Continue through reachability, name resolution, trust, firewall policy, traversal, signaling, media, and dial plan. This sequence is a practical recommendation based on the published topic relationships, not an official Cisco exam procedure.
What was the former course coverage?
Cisco’s former CLCEI course covered Cisco Expressway Series solutions for Business-to-Business calls, Mobile and Remote Access, authentication options, and additional Expressway features. Its published objectives also included Unified Communications Manager and Expressway integration and Business-to-Business troubleshooting, making the course a useful coverage map for retrospective study.
The course included lessons and hands-on labs and was designed as five days of instructor-led classroom training or equivalent e-learning. Cisco also stated that the former course earned 40 Continuing Education credits toward recertification. These are historical course details; they do not establish current availability, current credit value, or a requirement for the retired exam.
If you are using an archived course, check each lesson against the former exam-topic guide. Course coverage and exam objectives are related but not interchangeable. Mark content that directly maps to a named topic, content that supplies implementation context, and content that is not represented in the published topic list. This prevents time being lost on broad material while leaving a blueprint item unreviewed.
What were the former delivery details?
The former CLCEI exam duration was 90 minutes, and its available language was English. Those details belong to the retired 300-820 CLCEI exam and should not be reused as assumptions about 300-820 CLHCT or another current Cisco exam.
Because the exam is retired, there is no current CLCEI registration or delivery decision to make. Candidates researching historical records can use the former overview for identification. Candidates choosing a replacement should obtain delivery, language, timing, registration, and topic information from the current official Cisco exam page rather than carrying forward archived details.
The former exam number was 300-820 and its first test date was February 24, 2020. This can help distinguish old references from current certification information, but it is not a current scheduling date.
What mistakes would have weakened preparation?
The most serious mistake now is preparing to sit CLCEI as though it were active. The second is treating the former CLCEI blueprint as the blueprint for its replacement. Cisco lists 300-820 CLHCT as the replacement, but a replacement designation alone does not prove that every former domain, weight, objective, delivery detail, or prerequisite remains unchanged.
Another common error is memorizing protocol names without tracing their operational relationship. NAT, ICE, TURN, STUN, and Expressway media traversal belong in a flow model. Similarly, certificates, DNS, interfaces, firewall rules, clustering, and QoS should be studied as implementation dependencies rather than independent vocabulary cards.
Do not overinterpret the published percentages. Cisco explicitly supplied 25% for the Key Concepts domain, 25% for the Initial Expressway Configurations domain, and 25% for the Mobile and Remote Access domain in the former guide. Since the supplied facts do not identify the remaining allocation, do not invent it or use the three figures as a full weighting table.
Avoid relying on exam dumps, leaked questions, or memorization claims. They do not demonstrate implementation ability, may be inaccurate or unauthorized, and cannot establish what a current exam tests. Use official topics, authorized learning materials, diagrams, and troubleshooting practice instead.
Finally, do not let a course completion certificate substitute for technical validation. The former course’s five-day design and 40 Continuing Education credits describe training and recertification credit information; they do not mean that attendance alone established competence or guaranteed a passing result.
How does the replacement affect a study plan?
If your target date was after the CLCEI retirement, stop the old roadmap and begin with 300-820 CLHCT information. Cisco announced that updated collaboration exams introduced a 50/50 split between cloud and on-premises collaboration content beginning February 3, 2026, but the supplied evidence does not provide the complete CLHCT blueprint, delivery details, or domain objectives. Obtain those directly before selecting resources.
If you were studying before the transition and did not test by February 2, 2026, archive your CLCEI notes instead of discarding them. Expressway, traversal, security, dial-plan, and integration knowledge may remain useful professionally, but usefulness is not proof that the same material carries the same weight on CLHCT.
The practical decision is therefore two-track. For a historical CLCEI review, use the former overview, topic guide, and course objectives to organize knowledge. For a current credential, use the official replacement page and current exam topics first, then keep only the former material that clearly supports a current objective.
A practical retrospective study roadmap
A retrospective roadmap is useful for understanding the retired exam’s technical scope, but it cannot lead to a CLCEI booking. Work through it as a skills review: map the blueprint, build the integration model, practise fault isolation, and verify every conclusion against official material. Then redirect current certification decisions to 300-820 CLHCT.
Begin by establishing your endpoint. Record whether you are documenting an earned CLCEI-related certification, reviewing legacy team skills, or pursuing a current Cisco collaboration credential. This single decision prevents the most expensive preparation error: investing in an unavailable exam.
Next, build a coverage matrix from the former topic guide. Include the Key Concepts domain, the Initial Expressway Configurations domain, and the Mobile and Remote Access domain, each with its published 25% allocation attached to the domain name. Add the remaining published topics without assigning an unsupported percentage.
Then create one architecture diagram showing Unified Communications Manager, Expressway, remote access, Business-to-Business collaboration, DNS, certificates, firewall boundaries, and media traversal. Annotate how authentication, protocol interworking, encryption, dial plans, and toll-fraud prevention affect the design. Review the diagram until you can explain both the intended path and the likely failure points.
After that, work through scenario cards. Each card should state the scope of the failure, the observed symptom, and the configuration area to inspect. Your answer should identify evidence to collect and a logical order for checking it. Keep scenarios derived from authorized material and your own lab or design exercises; do not recreate supposed exam questions.
Finish with a replacement check. Confirm the current exam number, objectives, registration information, language, duration, and other scheduling details on Cisco’s current page. Do this immediately before committing study time, because archived CLCEI details such as 90 minutes and English describe the former exam only.
Week one: establish the technical map
Start with the former overview and topic guide. Separate concepts from configuration tasks, then draw the collaboration edge architecture. Focus on the relationships among Unified Communications Manager, Expressway, remote users, external organizations, DNS, certificates, firewalls, and media paths. End the week by explaining the design without notes.
Week two: study Expressway dependencies
Work through DNS, network interfaces, certificates, QoS, clustering, firewall rules, dial-plan elements, toll-fraud prevention, and Business-to-Business solutions. For every item, write its prerequisite, its purpose, and one failure symptom. Do not move on while you can name a setting but cannot explain the traffic or trust relationship it supports.
Week three: resolve traversal and access scenarios
Review NAT complications, ICE, TURN, STUN, Expressway media traversal, protocol interworking, licensing, SIP media-encryption modes, and backup and restore procedures. Pair each topic with a diagram and a fault-isolation question. Then connect Mobile and Remote Access security and integration options to the same architecture rather than studying them as a separate vocabulary list.
Final review: verify the target before acting
Use the final review to identify gaps, not to reread everything. Revisit any topic you cannot explain from a diagram or troubleshoot through a sequence of checks. Before scheduling anything, verify that the exam is current. For CLCEI, that check ends the scheduling plan because Cisco retired the exam; for a replacement, it begins a new one.
What should you do next?
If you wanted 300-820 CLCEI, treat it as a retired certification reference and do not look for a test appointment. If you earned it, check the individual certification expiration date and applicable Cisco recertification options. If you still need a current collaboration concentration, open Cisco’s 300-820 CLHCT information, download the current topics, and rebuild your study matrix from that material.
Keep the former CLCEI resources for professional reference when they help you understand Expressway, remote access, traversal, security, and Unified Communications Manager integration. Label every archived note with its source and date so it cannot be mistaken for a current exam requirement.
Your immediate next action is simple: decide whether the goal is credential maintenance, legacy-skill review, or a new certification. That decision determines whether the former CLCEI sources are your destination or merely background for selecting the current Cisco path.
Conclusion
300-820 CLCEI remains useful as a record of Cisco’s former cloud and edge implementation scope, but it is not a current exam. Use its published objectives to understand Expressway, remote access, traversal, integration, and security skills; use Cisco’s current replacement information for any new certification decision. The safest preparation habit is to verify exam status and blueprint before investing in a schedule or study plan.
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