Source note · Expressway and Mobile and Remote Access
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.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- mra-architecture
- Deployment
- on-premises, dedicated-instance
- Region
- not restricted
- Release range
- X15.2 guide; current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Mobile and Remote Access Through Cisco Expressway Deployment Guide (X15.2) - MRA Overview — Cisco Systems · tier 2 current vendor documentation · MRA Overview chapter, protocol summary for the MRA architecture
Cite this note
APA
WarmTransfer. (2026, September 24). Expressway and Mobile and Remote Access: source note cucm-expressway-mra-protocols. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-expressway-mra-protocols
BibTeX
@misc{warmtransfer-claim-cucm-expressway-mra-protocols,
title = {Expressway and Mobile and Remote Access: source note cucm-expressway-mra-protocols},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-expressway-mra-protocols},
note = {Source note cucm-expressway-mra-protocols, checked 2026-09-24}
}