Source note · Setting up the Webex App for Unified CM calling
Public DNS must carry _collab-edge._tls.<domain> SRV records so endpoints can discover the Expressway-E used for MRA, and Expressway supports calling for MRA-connected Webex clients on Windows, Mac, iOS and Android.
Checked 2026-09-30
Expressway supports calling for MRA-connected Webex clients
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- MRA DNS
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Expressway X14.3 guide
- Checked
- 2026-09-30
Sources
- Mobile and Remote Access Through Cisco Expressway Deployment Guide (X14.3) - MRA Requirements and Prerequisites — Cisco Systems · tier 2 current vendor documentation · MRA requirements > DNS records > Public DNS; supported clients
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up the Webex App for Unified CM calling: source note cucm-webex-app-calling-setup-mra-collab-edge-public. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-webex-app-calling-setup-mra-collab-edge-public
BibTeX
@misc{warmtransfer-claim-cucm-webex-app-calling-setup-mra-collab-edge-public,
title = {Setting up the Webex App for Unified CM calling: source note cucm-webex-app-calling-setup-mra-collab-edge-public},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-webex-app-calling-setup-mra-collab-edge-public},
note = {Source note cucm-webex-app-calling-setup-mra-collab-edge-public, checked 2026-09-30}
}