Cisco CLCEI 300-820 case studies
Cisco CLCEI 300-820 · Put your knowledge to work in context.
The Cisco 300-820 CLCEI exam, listed by Cisco as Implementing Cisco Collaboration Hybrid and Cloud Technologies, is a concentration-style exam aimed at collaboration engineers who design, deploy, and operate hybrid environments that connect on-premises Cisco collaboration infrastructure with Webex cloud services. It suits administrators and engineers already comfortable with Unified Communications Manager, Expressway edge deployments, and Webex administration, who now need to prove they can bridge the two worlds securely. The Cisco CLCEI 300-820 case studies are 5 cases and about 3,366 words.
1Choosing a Deployment Model for a Regulated Multinational with On-Premises Calling
A European healthcare group with 12,000 employees runs Cisco Unified Communications Manager 14 on-premises in Frankfurt and Singapore, with PSTN gateways in both sites. The company wants to adopt Webex App for messaging and meetings but must keep all clinical call recordings and voicemail in the EU.
689 words, about 3 min2Consolidating Two Webex Organizations and Correcting License Overconsumption
Northwind Retail has 8,500 employees after acquiring a 2,500-user chain. It operates two Webex Control Hub organizations: the original org uses Azure AD SSO and Directory Connector for 6,000 users; the acquired org has 2,500 users managed by CSV and local passwords.
676 words, about 3 min3Hybrid Calendar Room Booking Failure After Exchange Online Migration
A medical device manufacturer runs Exchange 2019 on-premises for 5,200 mailboxes and Exchange Online for 1,300 migrated users in a full hybrid deployment. Webex Hybrid Calendar Service is enabled; one Calendar Connector is installed in Frankfurt and registered to Expressway-C.
639 words, about 3 min4Hybrid Call Service Connect Extension Dialing and Media Failures
A wealth management firm has 4,200 users on Cisco Unified Communications Manager 14.2 and 800 remote advisors using Webex App with Hybrid Call Service Connect. The CUCM cluster is in Dallas; the Expressway-C/E pair is also in Dallas; advisors are in London and Singapore.
707 words, about 4 min5Expressway TLS, DNS, and Firewall Failures Across MRA, B2B, and Calendar
A university has 18,000 users and runs Expressway-C in an internal DMZ and Expressway-E in an external DMZ with dual NIC and static NAT. MRA serves Jabber and Webex App; B2B calls go to a partner university; Hybrid Calendar uses the same Expressway pair.
655 words, about 3 min