Question

A network architect is documenting the Cisco Collaboration edge architecture for a new deployment. The design must allow internal Jabber and desk phone users to reach the PSTN through a service provider SIP trunk, and also allow remote employees to register their Jabber clients securely without a VPN. Which statement correctly describes the roles of the edge devices required to meet both requirements?

Accepted Answer

Cisco Unified Border Element (CUBE) provides the SIP trunk demarcation to the PSTN provider, while Expressway-C and Expressway-E provide Mobile and Remote Access (MRA) for VPN-less endpoint registration.

Answer

Expressway-E provides the SIP trunk demarcation to the PSTN provider, while CUBE provides Mobile and Remote Access (MRA) for VPN-less endpoint registration.

Answer

CUBE provides both the PSTN SIP trunk demarcation and the Mobile and Remote Access function for remote endpoints in a single role.

Answer

Expressway-C provides the SIP trunk demarcation to the PSTN provider, while Expressway-E alone provides Mobile and Remote Access without needing Expressway-C.