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Collaboration, Voice & AV · Foundational

Cisco Expressway

Cisco's collaboration edge gateway that provides secure firewall traversal, remote access, B2B video and interworking.

Definition

Expressway is deployed as Expressway-C inside the network and Expressway-E in the DMZ, connected by a traversal zone. It enables Mobile and Remote Access without VPN, business-to-business SIP and H.323 calls, SIP/H.323 interworking, Webex hybrid services and registration of video endpoints. Expressway nodes can be clustered for capacity and resilience.

Example

Expressway-E receives a B2B call from the internet and forwards it through the traversal zone to Expressway-C and CUCM.

Exam tip

Know which box sits where: Expressway-C (core, internal), Expressway-E (edge, DMZ), and that C initiates the traversal connection to E.

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