Cisco CLCEI 300-820 flashcards
Cisco CLCEI 300-820 · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Webex Hybrid Calling
- A deployment model where devices register to the Webex cloud for management and calling features, but call control and PSTN routing remain on the on-premises Unified CM through a connector.
- Cloud-only Webex Calling
- A deployment where Cisco hosts call control and PSTN connectivity; no on-premises Unified CM is required, and Control Hub is the sole administration plane.
- Webex Edge for Devices
- A model where room devices are managed and updated from the cloud while media and call control can stay on-premises, reducing WAN bandwidth dependency.
- Hybrid services connector
- A component (Expressway-C or dedicated VM) that registers to the Webex cloud and brokers hybrid services such as Calendar, Calling, Message, and Directory.
- Deployment decision rule
- If the customer keeps existing PBX dial plans and PSTN contracts, choose Hybrid Calling; if no on-premises UC exists, choose cloud-only Webex Calling.
- Control Hub administrator roles
- Roles such as Full Administrator, User Administrator, Device Administrator, and Read-Only Administrator that scope what an admin can manage in an organization or location.
- Webex license separation
- Meetings and Calling are separate subscription SKUs; assigning a Calling license without a device or number provisions only the softphone client.
- Bulk user import
- A Control Hub feature that uses a CSV template with email, display name, and license columns to create many users at once, reporting errors per row.
- Directory Connector sync
- A Windows-hosted tool that reads Active Directory over LDAP and pushes users to Control Hub; synced attributes are authoritative and overwrite manual edits.
- Group-based license mapping
- A Control Hub configuration that maps Active Directory security groups to Webex licenses so group membership automatically drives user entitlement.
- Control Hub SSO
- SAML 2.0 single sign-on configured with an identity provider such as Azure AD or Okta; once enforced, local Control Hub passwords are disabled for those users.
- Number management
- Control Hub inventory of phone numbers assigned to users, workspaces, or auto-attendants; unassigned numbers remain available for later assignment or release.
- Hybrid Calendar purpose
- A service that links Webex meeting scheduling to Exchange or Office 365 so Outlook-created meetings include Webex join links and vice versa.
- EWS impersonation account
- A service account granted ApplicationImpersonation on on-premises Exchange so the Hybrid Calendar connector can read and write calendars for all users.
- Office 365 calendar OAuth
- Hybrid Calendar integration with Office 365 uses an Azure AD application registration and OAuth tokens instead of EWS impersonation credentials.
- Hybrid Directory sync
- A connector that reads users from Active Directory via LDAP and provisions them into Control Hub over HTTPS, matching existing users by primary email.
- Calendar connector placement
- The Hybrid Calendar connector runs on Expressway-C or a dedicated host and needs outbound TCP 443 to both Webex cloud and Exchange or Office 365 endpoints.
- Directory sync match rule
- Users are matched between Control Hub and Active Directory by primary email; a mismatched email causes duplicate or failed provisioning during sync.
- Hybrid Calendar troubleshooting
- Check connector status under Services in Control Hub, verify service account credentials and EWS URL, and confirm the connector can reach the Exchange CAS.
- Unified CM Cloud
- Cisco-hosted call control that can be connected to on-premises Unified CM through SIP trunks over an Expressway pair for hybrid call routing.
- Hybrid Message
- A service that connects Webex App messaging to on-premises Unity Connection voicemail, syncing voicemail and message waiting indication into Webex.
- Hybrid SIP trunk path
- Calls between on-premises Unified CM and cloud-registered users traverse a SIP trunk through Expressway-C and Expressway-E rather than the public internet directly.
- PSTN breakout rule
- Route PSTN calls out through local gateways near the caller to avoid tromboning media through the cloud; use cloud routing only when local gateways are unavailable.
- Hybrid dial plan design
- On-premises Unified CM uses route patterns and route groups toward the Expressway SIP trunk; cloud routing rules handle inbound PSTN to cloud users.
- Unity Connection hybrid
- The connector registers with Webex and uses a service account with mailbox permissions; voicemail stays on-premises while notifications appear in Webex App.
- Hybrid call failover
- If the Expressway tunnel to Webex is down, hybrid call routing fails; design a local PSTN gateway fallback on on-premises Unified CM for continuity.
- Expressway-C role
- The internal Expressway peer that connects to Unified CM and internal services and forms the secure traversal zone toward Expressway-E in the DMZ.
- Expressway-E role
- The DMZ Expressway peer that terminates the secure tunnel to the Webex cloud and requires a public CA-signed certificate and internet-resolvable DNS name.
- Traversal zone ports
- Expressway-C to Expressway-E uses TCP 7001 and 7002; Expressway-E to the Webex cloud uses outbound TCP 443 with no inbound openings required.
- Expressway-E certificate
- A public certificate from a trusted CA whose subject includes the Expressway-E FQDN, used for the traversal zone and cloud trust; expired chains break hybrid services.
- Traversal zone configuration
- On Expressway-C, point the traversal zone at Expressway-E, enable Traversal and Media on the zone, and configure matching shared credentials on both peers.
- Hybrid services status
- Each hybrid service enabled on Expressway-C registers to the Webex cloud and shows its connection status in Control Hub under Services for verification.