Cisco Expressway Functionalities in Cisco Collaboration Architecture

Cisco Expressway Functionalities


Which two functionalities does Cisco Expressway provide in the Cisco Collaboration architecture? (Choose two.)



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A. B. C. D. E.


Cisco Expressway is an advanced collaboration gateway that provides secure firewall and NAT traversal for mobile or remote Cisco Jabber and TelePresence Video endpoints, enabling users to securely connect with colleagues and clients from anywhere, on any device.

The two functionalities that Cisco Expressway provides in the Cisco Collaboration architecture are:

  1. Secure firewall and NAT traversal for mobile or remote Cisco Jabber and TelePresence Video endpoints: Cisco Expressway acts as a firewall traversal solution that provides secure connectivity for remote workers, telecommuters, and mobile users. It supports various protocols such as SIP, H.323, HTTP, HTTPS, and XMPP, providing secure access for endpoints such as Cisco Jabber and TelePresence Video. It also offers NAT traversal functionality, which allows endpoints to communicate even if they are behind a NAT device.

  2. Secure business-to-business communications: Cisco Expressway provides secure communication between different organizations, enabling users to collaborate across company boundaries. It allows secure business-to-business communications by providing secure SIP trunking, encrypted signaling and media, and protocol normalization.

Cisco Expressway does not provide Survivable Remote Site Telephony functionality or MGCP gateway registration. Survivable Remote Site Telephony is a feature of Cisco Unified Communications Manager that provides call processing redundancy for remote sites. MGCP (Media Gateway Control Protocol) is a protocol used for controlling media gateways in a VoIP network. Cisco Expressway does not support MGCP gateway registration.

Therefore, options C and E are the correct answers.