Mobile and Remote Access Through Cisco Expressway Deployment Guide (X15.2) - MRA Overview

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X15-2/mra/exwy_b_mra-deployment-guide-x152/exwy_m_mra-overview-and-planning.html

Published

2024-10-15

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

Cisco copyright; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco Mobile and Remote Access (MRA) is part of the Cisco Collaboration Edge Architecture. It lets Unified CM provide registration, call control, provisioning, messaging and presence to endpoints such as Cisco Jabber when they are outside the enterprise network. in context
• In MRA, Expressway-E sits in the DMZ and provides secure firewall traversal. Expressway-C sits on the internal network and connects to Unified CM. in context
• Cisco Jabber Video for TelePresence does not work with MRA. in context
• When MRA serves more than one Unified CM cluster, Home Cluster Discovery must be configured. in context
• MRA lets Jabber clients communicate without connecting to the corporate network over a VPN. in context
• MRA uses SIP over TLS for sessions, HTTPS over TLS for provisioning, directory and voicemail, SRTP for media, and XMPP over TLS for messaging and presence. in context
• Placing Expressway-C in a DMZ that uses static NAT is not a supported MRA deployment. Expressway-E is used for that position. in context
• Cisco Mobile and Remote Access (MRA) through Expressway gives endpoints such as Cisco Jabber registration, call control, provisioning, messaging and presence from Unified CM while they are outside the enterprise network, without a VPN. in context
• MRA does not support VPN links between the Expressway-C and the Unified CM services or clusters. in context

Cite this source record

APA

WarmTransfer. (2024, October 15). Mobile and Remote Access Through Cisco Expressway Deployment Guide (X15.2) - MRA Overview. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-exwy-mra-guide-x152-overview

BibTeX

@misc{warmtransfer-cisco-exwy-mra-guide-x152-overview,
  title  = {Mobile and Remote Access Through Cisco Expressway Deployment Guide (X15.2) - MRA Overview},
  author = {{WarmTransfer}},
  year   = {2024},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-exwy-mra-guide-x152-overview},
  note   = {Cisco Systems, accessed 2026-09-24}
}